2024-03-28T21:26:42Z
https://jurnal.ugm.ac.id/jfs/oai
oai:jurnal.ugm.ac.id:article/153
2018-03-28T07:36:45Z
jfs:ART
Pemeliharaan Larva Kerapu Bebek (Cromileptes altivelis) dengan Konsentrasi Pewarna Hijau Media Air yang Berbeda
Ismi, Suko
Wardoyo, Wardoyo
Setyawati, Ketut
Tridjoko, Tridjoko
Hutepea, Jhon H.
larval rearing, humpback grouper, coloring water
The purpose of this research was to find the optimum color concentration of water for larval rearing of humbpback grouper (Cromileptes altivelis). The experiment conducted using 12 polycarbonat tanks with volume of 200 l. Initial density of larvae was 10 ind/l. Food grade coloring agent was used to result a green color water solution. Four different water color concentration were tested as treatments i.e.: A 10 ppm; B 20 ppm ; C 30 ppm and D 40 ppm with three replications. The experiment was conducted for 30 days. The result showed that the highest survival rate was exhibited by C treatment (30 ppm) (P<0.05), the B (20 ppm) and D (40 ppm) treatments were significantly different (P<0.05) compare to A (10 ppm.) The survival rates of larvae at the end of experiment were A (8.2%); B (25.6%); C (40.4%) and D (29.3%).
Universitas Gadjah Mada
2006-07-16
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/153
10.22146/jfs.153
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 8, No 2 (2006); 290-294
Jurnal Perikanan Universitas Gadjah Mada; Vol 8, No 2 (2006); 290-294
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/153/108
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/10327
2018-07-29T13:52:26Z
jfs:ART
Susceptibility of Tiger Shrimp (Panaeus monodon) against Vibrio harveyi on Various Molt Stage and Osmolarity
Susceptibility of Tiger Shrimp (Panaeus monodon) against Vibrio harveyi on various Molt Stage and Osmolarity
Saptiani, Gina
Pebrianto, Catur A
Agustina, Agustina
Hardi, Esti H
molt stage; osmolarity; susceptibility; tiger shrimp; V. harveyi
Molt stage; osmolarity; susceptibility; tiger shrimp; V. harveyi
Vibrio harveyi causes disease of tiger shrimp (Penaeus monodon) aquaculture in East Kalimantan. This research aimed to investigate the susceptibility of tiger shrimp on various molt stage and osmolarity, and determine the salinity (osmolarity) of water that can reduce the risk of V. harveyi attack. Shrimp age of 1.5 months was maintained in 4 aquariums with salinity 29.72 ‰, 26.07 ‰, 22.35 ‰ and 17.79 ‰, then challenged with V. harveyi. After 7 and 14 days, osmolarity of haemolimph was observed with automatic osmometer and Digital Roebling Osmometer. The susceptibility of tiger shrimp to V. harveyi was evaluated based on clinical symptoms, pathological anatomy of shrimp and density of V. harveyi (TPC) in the hepatopancreas. Osmolarities of shrimp haemolymph at premolt, postmolt, and intermolt stage were 575.30-812.60; 534.00-788.80, and 566.20-795.60 mOsm/l H2O, respectively. The lowest bacterial content in the premolt stage was maintained at a salinity 22.35 ‰, and the highest one was obtained in postmolt stage at 29.72 ‰. The molting and postmolt stage were the most susceptible to V. harveyi attacks. The results suggested that the shrimp maintained at 22.35 ‰ salinity was less susceptible to V. harveyi.
Vibrio harveyi causes disease of tiger shrimp (Penaeus monodon) aquaculture in East Kalimantan. This research aimed to investigate the susceptibility of tiger shrimp on various molt stage and osmolarity, and determine the salinity (osmolarity) of water that can reduce the risk of V. harveyi attack. Shrimp age of 1.5 months was maintained in 4 aquariums with salinity 29.72 ‰, 26.07 ‰, 22.35 ‰ and 17.79 ‰, then challenged with V. harveyi. After 7 and 14 days, osmolarity of haemolimph was observed with automatic osmometer and Digital Roebling Osmometer. The susceptibility of tiger shrimp to V. harveyi was evaluated based on clinical symptoms, pathological anatomy of shrimp and density of V. harveyi (TPC) in the hepatopancreas. Osmolarities of shrimp haemolymph at premolt, postmolt, and intermolt stage were 575.30-812.60; 534.00-788.80, and 566.20-795.60 mOsm/l H2O, respectively. The lowest bacterial content in the premolt stage was maintained at a salinity 22.35 ‰, and the highest one was obtained in postmolt stage at 29.72 ‰. The molting and postmolt stage were the most susceptible to V. harveyi attacks. The results suggested that the shrimp maintained at 22.35 ‰ salinity was less susceptible to V. harveyi.
Universitas Gadjah Mada
2016-03-20
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/10327
10.22146/jfs.10327
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 18, No 1 (2016); 19-25
Jurnal Perikanan Universitas Gadjah Mada; Vol 18, No 1 (2016); 19-25
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/10327/17274
Copyright (c) 2016 Journal of Fisheries Sciences
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/10346
2018-09-06T12:07:32Z
jfs:ART
Antibacterial Analysis of the Ethanol Extract of Gonggong Snail (Strombus canarium) against Pathogenic Bacteria
ANALISIS ANTIBAKTERI EKSTRAK ETANOL SIPUT GONGGONG (Strombus canarium) TERHADAP BAKTERI PATOGEN
Yoswaty, Dessy
Zulkifli, Zulkifli
antibacterial, bioactive compounds, gonggong snail
antibakteri, senyawa bioaktif, siput gonggong
The study aims to analyze the use of antibacterial ethanol extract of gonggong snail (Strombus canarium) against pathogenic bacteria and analyzing bioactive compounds in gonggong snails for the development of marine aquaculture. The research method is an experimental method, performed in vitro, using a completelyrandomized design (CRD) with three replications. The subjects of research that pathogenic bacteria (Vibrio sp., C. perfringens, and Aeromonas sp.). The object of research is D1 gonggong snail extract 12.5%; D2 gongong snail extract 25%; D3 gonggong snail extract 50%; C4 gonggong snail extract 100%, ethanol D5 and D6 amosiklav discs (antibiotic chloramphenicol). Phytochemical screening test that alkaloids, saponins, flavonoids, steroids, and triterpenoids) from the ethanol extract of the gonggong snail. Data were analyzed by ANOVA test to determine the significance of the difference in diameter between the various treatments inhibitory region. The results showed that as many as 20 of the gonggong snail with morphometric body length size range of between 43.9 to 56.0 mm, the average length of 52.74 mm and a total weight of 16.21 grams on average. Results of research ethanol extract of gonggong snail is treated discs amoxiclav have inhibition (clear zone) highs against the bacterium Vibrio sp. (diameter 1.80 to 12.40 mm), A. hydrophila (diameter 4.78 to 21.37 mm) and C. perfringens (diameter 1.50 to 6.80 mm). Class of bioactive compounds of alkaloids and saponins identified in the ethanol extract of gonggong snail and class of bioactive compounds of flavanoid, steroids, and triterpenoids is not identified in the ethanol extract of gonggong snails. The results of the measurement of environmental quality parameters in waters around the coast of Bintan Island Village Senggarang still in good condition and has not been contaminated. This enables to support life gonggong snail (S. canarium). The ethanol extract of gonggong snails has the antibacterial activity that can be used to overcome the attacks of pathogenic bacteria in the development of marine aquaculture.
Penelitian bertujuan untuk menganalisis antibakteri ekstrak etanol siput gonggong (Strombus canarium) terhadap bakteri patogen. Metode penelitian yaitu metode eksperimen, dilakukan secara in vitro, menggunakan Rancangan Acak Lengkap (RAL) dengan tiga kali ulangan yaitu D1 ekstrak siput gonggong 12,5%; D2 ekstrak siput gonggong 25%; D3 ekstrak siput gonggong 50%; C4 ekstrak siput gonggong 100%, D5 etanol dan D6 cakram amosiklav (antibiotik kloramfenikol). Uji skrining fitokimia yang dilakukan meliputi lkaloid, saponin, flavonoid, steroid dan triterpenoid. Hasil penelitian menunjukkan bahwa siput gonggong sebanyak 20 ekor berdasarkan morfometrik kisaran ukuran panjang tubuh yaitu antara 43,9-56,0 mm, panjang rata-rata 52,74 mm dan berat total rata-rata 16,21 g. Aktivitas antibakteri ekstrak etanol siput gonggong mempunyai daya hambat tertinggi terhadap bakteri Vibrio sp. (diameter 1,80-12,40 mm), A. hydrophila (diameter 4,78-21,37 mm), dan C. perfringens (diameter 1,50-6,80 mm). Golongan senyawa bioaktif yang teridentifikasi meliputi alkaloid dan saponin, sedang golongan senyawa flavonoid, steroid, dan triterpenoid tidak teridentifikasi. Dengan demikian, ekstrak etanol siput gonggong mempunyai potensi antibakteri yang dapat digunakan untuk mengatasi serangan bakteri patogen dalam pengembangan usaha budidaya laut.
Universitas Gadjah Mada
Lembaga Penelitian dan Pengabdian Masyarakat Universitas Riau
2016-08-12
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/10346
10.22146/jfs.10346
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 18, No 2 (2016); 83-89
Jurnal Perikanan Universitas Gadjah Mada; Vol 18, No 2 (2016); 83-89
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/10346/19297
Copyright (c) 2016 Jurnal Perikanan Universitas Gadjah Mada
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/10350
2018-09-03T06:38:20Z
jfs:ART
Perkiraan Rentang Hidup dan Pola Osilasi Populasi Cypraea moneta L, 1758 DI Pantai Sepanjang Yogyakarta
Zahida, Felicia
Jati, Wibowo N.
Cypraea moneta, Pantai Sepanjang, pola osilasi populasi, rentang hidup
Baru-baru ini telah dilakukan berbagai penelitian siput laut secara intensif di pantai selatan Yogyakarta. Fakta menunjukkan pemanenan Gastropoda oleh penduduk setempat tinggi di Pantai Krakal. Oleh sebab itu perlu dilakukan penelitian untuk memperkirakan rentang hidup dan pola osilasi berbagai populasi Gastropoda, khususnya Cypraea moneta L., 1758. Pola osilasi dan rentang hidup menunjukkan status kerentanannya, dengan mempelajari kharakter ini selanjutnya dapat dilakukan upaya pengelolaan yang berkesinambungan. Penelitian dilakukan dengan melakukan sampling di Pantai Sepanjang, di sekitar bulan purnama selama satu tahun. Siput diukur panjang cangkangnya (mm), guna mendapatkan datafrekuensi panjang cangkang per bulan. Selanjutnya dilakukan analisis Elefan untuk mendapatkan nilai konstanta pertumbuhan dan kurva pertumbuhan von Bertallanffy menunjukkan rentang umur populasi.Hasil penelitian menunjukkan pola osilasi yang tidak konstan, baik yang didapatkan di Pantai Krakal maupun Pantai Sepanjang. Konstanta pertumbuhan K juga menunjukkan perbedaan antara populasi yang didapatkan di Pantai Krakal dan Pantai Sepanjang yang bersebelahan lokasinya di pantai selatan Yogyakarta.Baru-baru ini telah dilakukan berbagai penelitian siput laut secara intensif di pantai selatan Yogyakarta.Fakta menunjukkan pemanenan Gastropoda oleh penduduk setempat tinggi di Pantai Krakal. Oleh sebabitu perlu dilakukan penelitian untuk memperkirakan rentang hidup dan pola osilasi berbagai populasiGastropoda, khususnya Cypraea moneta L., 1758. Pola osilasi dan rentang hidup menunjukkan statuskerentanannya, dengan mempelajari kharakter ini selanjutnya dapat dilakukan upaya pengelolaan yangberkesinambungan. Penelitian dilakukan dengan melakukan sampling di Pantai Sepanjang, disekitarbulan purnama selama satu tahun. Siput diukur panjang cangkangnya (mm), guna mendapatkan datafrekuensi panjang cangkang per bulan. Selanjutnya dilakukan analisis Elefan untuk mendapatkan nilaikonstanta pertumbuhan dan kurva pertumbuhan von Bertallanffy menunjukkan rentang umur populasi.Hasil penelitian menunjukkan pola osilasi yang tidak konstan, baik yang didapatkan di Pantai Krakalmaupun Pantai Sepanjang. Konstanta pertumbuhan K juga menunjukkan perbedaan antara populasiyang didapatkan di Pantai Krakal dan Pantai Sepanjang yang bersebelahan lokasinya di pantai selatanYogyakarta.
Universitas Gadjah Mada
2015-07-28
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/10350
10.22146/jfs.10350
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 17, No 2 (2015); 49-53
Jurnal Perikanan Universitas Gadjah Mada; Vol 17, No 2 (2015); 49-53
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/10350/7831
Copyright (c) 2016 Journal of Fisheries Sciences
oai:jurnal.ugm.ac.id:article/10393
2018-07-29T13:52:26Z
jfs:ART
Application of Acoustic Technology on the Fish Catch of Boat Lift Net
PENERAPAN TEKNOLOGI AKUSTIK PADA PERIKANAN BAGAN PERAHU
Kurnia, Muhammad
Sudirman, Sudirman
Nelwan, Alfa
boat liftnet; fisheries acoustic technology
bagan perahu; teknologi akustik perikanan
Acoustic technology for fisheries is one of technologies with the advantages to detect marine resources including estimating density and the presence of fish and relatively more accurate than conventional methods. The present study aims to assess the effectiveness of the operation of the lift-net with hydroacoustic technology in an effort to increase the productivity of the fisherman of boat liftnet. The study was conducted on fishing activity of boat liftnet in the Makassar Strait from April to May 2015 by utilizing the tools of acoustic technology in the operation of the boat liftnet. The analysis method is based on the productivity of the boat liftnet. The results showed that the productivity of fishing gear which is operated by using the tools of fisheries acoustic were improved compared with the fishing effort without acoustic tools. This result is expected to be a reference to research on the use of acoustic technology in a variety of fishing gear and as reference to research the use of science and technology in support of sustainable small-scale fishing effort.
Teknologi akustik bidang penangkapan ikan merupakan salah satu teknologi dengan keunggulan dapat mendeteksi sumberdaya hayati laut termasuk pendugaan densitas dan keberadaan ikan secara langsung dan relatif lebih akurat dari metode konvensional yang digunakan nelayan selama ini. Studi tentang penerapan teknologi hidroakustik bertujuan untuk mengkaji efektivitas pengoperasian bagan perahu dengan alat bantu penangkapan teknologi hidroakustik sebagai upaya untuk peningkatan produktivitas nelayan bagan perahu. Penelitian dilakukan pada usaha penangkapan ikan dengan bagan perahu di perairan Selat Makassar pada bulan April-Mei 2015 dengan memanfaatkan alat bantu teknologi akustik pada pengoperasian bagan perahu. Metode analisis dilakukan berdasarkan produktivitas bagan perahu dengan pemanfaatan teknologi akustik. Hasil penelitian menunjukkan bahwa produktivitas alat tangkap yang dioperasikan nelayan dengan menggunakan alat bantu akustik perikanan meningkat dibandingkan dengan usaha penangkapan ikan tanpa alat bantu akustik. Hasil ini diharapkan menjadi referensi untuk penelitian pemanfaatan teknologi akustik pada berbagai alat penangkapan ikan dan menjadi acuan pemanfaatan IPTEK dalam mendukung usaha penangkapan ikan skala kecil secara berkelanjutan.
Universitas Gadjah Mada
Ministry of Research, Technology and Higher Education of the Republic of Indonesia
Kemenristek DIKTI
2016-03-20
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/10393
10.22146/jfs.10393
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 18, No 1 (2016); 7-13
Jurnal Perikanan Universitas Gadjah Mada; Vol 18, No 1 (2016); 7-13
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/10393/17272
Copyright (c) 2016 Journal of Fisheries Sciences
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/10741
2018-09-06T12:14:12Z
jfs:ART
Antibacterial Activity of Jatropha curcas (Linn) Leaves Extract Against Vibrio harveyi and Aeromonas hydrophila
Antibacterial Activity of Jatropha curcas (Linn) Leaves Extract a gainst Vibrio harveyi and Aeromonas hydrophila
Arifin, Nasrullah Bai
Marthapratama, Imas
Sanoesi, Ellana
Prajitno, Arief
Aeromonas hydrophila; paper disk diffusion; Jatropha curcas Linn; minimum inhibitory concentration test; Vibrio harveyi
Aeromonas hydrophila; paper disk diffusion; Jatropha curcas Linn; minimum inhibitory concentration test; Vibrio harveyi
The use of natural products as an antimicrobial agent is an alternative way in the treating drug-resistant pathogens. A. hydrophila and V. harveyi are pathogenic bacteria both in freshwater and marine culture, respectively. Physic nut (Jatropha curcas, Linn) has been known as an herbal plant that has an antibacterial agent. The purpose of this study was to analyze inhibition ability of an extract of physic nut leaves on the growth of V. harveyi and A. hydrophila. In this study, water extract of physic nut leaves was determined to evaluate the antibacterial activity against V. harveyi and A. hydrophila using the Minimum Inhibitory Concentration Test (MIC) and Paper Disk Diffusion Method. The smallest concentration on the MIC was 0.10 g/ml for A. hydrophila and 0.15 g/ml for V. harveyi, respectively. The Paper Disk Diffusion Method used difference concentrations (0.10 g/ml; 0.15 g/ml; 0.20 g/ml; 0.25 g/ml; 0.30 g/ml; 0.35 g/ml; dan 0.40 g/ml) and Control (0 g/ml). The concentration of 0.35 g/ml had the highest inhibition zone diameter in 11.3±0.2 mm for A. hydrophila and 0.40 g/ml had the highest inhibition zone in 11.2±0.3 mm for V. harveyi. The result showed that water extract of physic nut leaves was able to inhibit both tested bacteria.
The use of natural products as an antimicrobial agent is an alternative way in the treating drug-resistant pathogens. A. hydrophila and V. harveyi are pathogenic bacteria both in freshwater and marine culture, respectively. Physic nut (Jatropha curcas, Linn) has been known as an herbal plant that has an antibacterial agent. The purpose of this study was to analyze inhibition ability of an extract of physic nut leaves on the growth of V. harveyi and A. hydrophila. In this study, water extract of physic nut leaves was determined to evaluate the antibacterial activity against V. harveyi and A. hydrophila using the Minimum Inhibitory Concentration Test (MIC) and Paper Disk Diffusion Method. The smallest concentration on the MIC was 0.10 g/ml for A. hydrophila and 0.15 g/ml for V. harveyi, respectively. The Paper Disk Diffusion Method used difference concentrations (0.10 g/ml; 0.15 g/ml; 0.20 g/ml; 0.25 g/ml; 0.30 g/ml; 0.35 g/ml; dan 0.40 g/ml) and Control (0 g/ml). The concentration of 0.35 g/ml had the highest inhibition zone diameter in 11.3±0.2 mm for A. hydrophila and 0.40 g/ml had the highest inhibition zone in 11.2±0.3 mm for V. harveyi. The result showed that water extract of physic nut leaves was able to inhibit both tested bacteria.
Universitas Gadjah Mada
Faculty of Fisheries and Marine Science, University of Brawijaya, Malang.
Fakultas Perikanan dan Ilmu Kelautan, Universitas Brawijaya
2017-03-07
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/10741
10.22146/jfs.10741
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 19, No 1 (2017); 11-16
Jurnal Perikanan Universitas Gadjah Mada; Vol 19, No 1 (2017); 11-16
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/10741/19991
Copyright (c) 2017 Jurnal Perikanan Universitas Gadjah Mada
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/10749
2018-07-29T13:52:26Z
jfs:ART
KARAKTERISTIK PERTUMBUHAN Tetraselmis sp. DAN Nannochloropsis sp.
Growth Characteristics of Tetraselmis sp. and Nannochloropsis sp.
Fakhri, Muhammad
Arifin, Nasrullah B.
densitas optik; laju pertumbuhan; mikroalga; spektrofotometri; waktu penggandaan
doubling time; growth rate; microalgae; optical density; spectrophotometry
Pemantauan pertumbuhan mikroalga (Tetraselmis sp. dan Nannochloropsis sp.) merupakan salah satu faktor penting dalam budidaya ikan dan udang. Tujuan penelitian ini adalah untuk mengetahui karakteristik pertumbuhan Tetraselmis sp. dan Nannochloropsis sp. dengan mengukur kerapatan optik menggunakan metode spektrofotometri. Penyerapan 600 nm digunakan untuk kedua spesies. Hasil penelitian menunjukkan bahwa pertumbuhan maksimum dicapai pada hari ke 6 untuk kedua mikroalga dengan nilai OD masing-masing 1,734 ± 0,013 dan 1,329 ± 0,002 untuk Tetraselmis sp. dan Nannochloropsis sp.. Tetraselmis sp. memiliki tingkat pertumbuhan maksimum 0,74/hari dan waktu penggandaan 22,43 jam sedangkan Nannochloropsis sp. memiliki tingkat pertumbuhan maksimum 0,86/hari dan waktu penggandaan 19,25 jam. Penelitian ini menunjukkan bahwa absorbansi 600 nm cocok untuk mengetahui pertumbuhan mikroalga hijau dan metode spektrofotometri yang dapat digunakan secara efisien untuk memantau pertumbuhan mikroalga.
Monitoring of microalgae growth (Tetraselmis sp. and Nannochloropsis sp.) is one of the essential factors in fish and shrimp cultures. The purpose of this study was to determine the growth characteristics of Tetraselmis sp. and Nannochloropsis sp. by measuring optical density using spectrophotometry method. Absorbance of 600 nm was used for both species. The results showed that the maximum growth was achieved at day 6 for both microalgae with OD value of 1.734±0.013 and 1.329±0,002 for Tetraselmis sp. and Nannochloropsis sp., respectively. Tetraselmis sp. had a maximum growth rate of 0.74/day and doubling time of 22.43 hours while Nannochloropsis sp. had a maximum growth rate of 0.86/day and doubling time of 19.25 hours. This study shows that absorbance of 600 nm is suitable for determine the growth of green microalgae and spectrophotometry method can be used efficiently to monitor microalgal growth.
Universitas Gadjah Mada
Fakultas Perikanan dan Ilmu Kelautan, Universitas Brawijaya
Fakultas Perikanan dan Ilmu Kelautan, Universitas Brawijaya
2016-03-20
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/10749
10.22146/jfs.10749
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 18, No 1 (2016); 15-18
Jurnal Perikanan Universitas Gadjah Mada; Vol 18, No 1 (2016); 15-18
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/10749/17273
Copyright (c) 2016 Journal of Fisheries Sciences
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/12424
2018-09-06T12:07:32Z
jfs:ART
Status of Stock of Rastrelliger spp. as the Base for Fisheries Management
STATUS STOK GENUS Rastrelliger spp. SEBAGAI DASAR PENGELOLAAN PERIKANAN (STUDI KASUS PERAIRAN SELAT SUNDA)
Sarasati, Wulandari
Boer, Mennofatria
Sulistiono, Sulistiono
Rastrelliger spp.; stock status; sunda strait
ikan kembung; kembung lelaki; kembung perempuan; selat sunda; status stok
The Rastrelliger spp. is one of the important commodities of the Sunda Strait. This research aimsto analyze the stock status of Rastrelliger spp. Including R. faughni, R. kanagurta and R. brachysoma in Sunda Strait that landed at the Fishery Harbor (PPP) Labuan, Banten. The sampling was conducted in April-August 2015. The data was collected using Random stratified sampling based on the fish size, small, medium and large. The length of the sample was measured and classified into male and female. The data were analyzed using FISAT II ELEFAN I software to present the stock with growth, recruitment, surplus production model, and mortality and rate of exploitation parameters. The results show that R. faughni has L∞ values for females and males respectively of 264.00 mm and 288.69 mm, 293.09 mm and 330.24 mm R. kanagurta and R. brachysoma 272.04 mm and 286.42. Growth Performs Index (GPI) on R. faughni of 4.2758, R. kanagurta of 4.1673, and on R. brachysoma of 4.2076. The growth coefficient of female and male R. faughni was 0.22 and 0.16, R. kanagurta of 0.24 and 0.10, and R. brachysoma 0.20 and 0.13. The level of recruitment of each varies but overall undergoes two peaks during the recruitment period. Maximum Sustainable Yield (MSY) for the Rastrelliger spp. 1,919.02 tons and FMSY (Effort MSY) for 16,766 trips. Furthermore, the mortality rate of arrest (F) R. faughni amounted to 14.53, R. kanagurta 9.43, and R. brachysoma 1.74. The estimation of stock status has never been detached from the exploitation rate. The rate of exploitation for R. faughni, and that is equal to 0.98, R. kanagurta of 0.98, and R. brachysoma 0.85. Judging from the rate of exploitation can be expected the three fish of the Rastrelliger spp. In the Sunda Strait has been over exploited because it has exceeded the limits of optimum exploitation rate.
Rastrelliger spp. merupakan salah satu komoditas penting dari perairan Selat Sunda. Penelitian ini bertujuan untuk menganalisis status stok Rastrelliger spp. meliputi ikan kembung (R. faughni), kembung lelaki (R. kanagurta), dan kembung perempuan (R. brachysoma) di perairan Selat Sunda yang didaratkan di Pelabuhan Perikanan Pantai (PPP) Labuan, Banten. Pengambilan sampel stok dilakukan pada bulan April - Agustus 2015 pada puncak bulan gelap. Sampel stok diambil secara acak kelompok berdasarkan ukuran kecil, sedang, dan besar. Data yang dikumpulkan terdiri panjang individu dan jenis kelamin. Parameter yang dianalisis untuk menduga status stok antara lain pertumbuhan, rekruitmen, model produksi surplus, serta mortalitas dan laju eksploitasi. Data dianalisis menggunakan software FISAT II ELEFAN I. Hasil menunjukkan bahwa R. faughni memiliki nilai L∞ untuk betina dan jantan masing-masing sebesar 264,00 mm dan 288,69 mm, R. kanagurta 293,09 mm dan 330,24 mm, serta ikan R. brachysoma 272,04 mm dan 286,42. Growth Performs Index (GPI) pada R. faughni sebesar 4.2758, R. kanagurta sebesar 4.1673, dan pada R. brachysoma sebesar 4.2076. Koefisien pertumbuhan (K) R. faughni betina dan jantan sebesar 0,22 dan 0,16, R. kanagurta sebesar 0,24 dan 0,10, serta R. brachysoma 0,20 dan 0,13. Tingkat rekruitmen masing-masing individu berbeda-beda tetapi secara keseluruhan mengalami dua puncak periode rekruitmen. Nilai Maximum Sustainable Yield (MSY) untuk Rastrelliger spp. sebanyak 1.919,02 ton dan FMSY (Effort MSY) sebesar 16.766 trip. Selanjutnya tingkat mortalitas penangkapan (F) ikan kembung sebesar 14,53, ikan kembung lelaki 9,43, dan ikan kembung perempuan 1,74. Dalam pendugaan status stok tidak pernah terlepas pada pendugaan laju eksploitasinya. Laju eksploitasi untuk ikan kembung yaitu sebesar 0,98, ikan kembung lelaki sebesar 0,98, dan ikan kembung perempuan 0,85. Dilihat dari laju eksploitasi tersebut dapat diduga ketiga ikan dari Rastrelliger spp. di perairan Selat Sunda telah mengalami over eksploitasi dikarenakan telah melewati batas laju eksploitasi optimum.
Universitas Gadjah Mada
BOPTN DIPA IPB 2015
BOPTN DIKTI 2015
2016-08-12
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/12424
10.22146/jfs.12424
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 18, No 2 (2016); 73-81
Jurnal Perikanan Universitas Gadjah Mada; Vol 18, No 2 (2016); 73-81
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/12424/17926
https://jurnal.ugm.ac.id/jfs/article/downloadSuppFile/12424/615
Copyright (c) 2016 Jurnal Perikanan Universitas Gadjah Mada
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/12549
2018-09-06T12:07:32Z
jfs:ART
Application of Good Fish Farming Practice for Vaname Shrimp (Litopenaeus vannamei) in the Coast of Yogyakarta
PENERAPAN CARA BUDIDAYA IKAN YANG BAIK PADA PEMBESARAN UDANG VANAME (Litopenaeus vannamei) DI PESISIR DAERAH ISTIMEWA YOGYAKARTA
Nugroho, Lucky Restyan
Sukardi, Sukardi
Triyatmo, Bambang
good fish farming practice; semi-intensive; shrimp farming technology; vaname shrimp
cara budidaya ikan yang baik, semi intensif, teknologi budidaya udang, udang vaname
This study aims to apply a good fish farming methods and determine factors that influence development the vaname shrimp (Litopenaeus vannamei) in the coast of Yogyakarta Special Region. This research also aims to find out an applicable technology of shrimp aquaculture for fish farmers in the coastal area of Special Region of Yogyakarta. The basic method used in this research is descriptive research with research instrument in the form of a questionnaire. The descriptive research aims to provide a picture of a society, a particular group of people or a picture of a symptom. Data collection techniques are conducted by interviews and structured observation to obtain a more detailed picture of a phenomenon. The location of the research is determined by purposive sampling, focusing on Sidorejo, Banaran, Galur, Kulon Progo, Kuwaru and Ngentak, Poncosari, Srandakan, Bantul. The reason for taking 3 areas is because as the center of production of shrimp vaname first and the longest operates in the coastal area ofSpecial Region of Yogyakarta. Respondents were determined by proportionate random sampling from 3 specified areas. This research took place from June 18, 2015, to July 12, 2015. The results showed the application of the good fish farming method on the activity of enlargement of shrimp vaname (L. vannamei) on the coast of Special Region of Yogyakarta covers 10 parameters. These ten parameters include site selection; determination of construction layout and design; selection of cultivation containers; biosecurity; selection of fish seed (shrimp); use of fish feed (shrimp); use of probiotics; use of disinfectants; harvesting method and harvesting equipment. Application of good fish farming method at vaname shrimp (L. vannamei) aquaculture development in the coast of Yogyakarta Special Region averaged at 62.24%. Factors that influence the application of good fish farming in the shrimp aquaculture development activities are the existence of communication and socialization services on the technical methods for the shrimp aquaculture by employees of feed and probiotics companies. Counseling (communication and socialization), verification (recording) and control in the form of certification has not been done by the Department of Marine and Fisheries of Indonesia. The technology of vaname shrimp farming (L. vannamei) applied by farmers in the coast of Yogyakarta Special Region is semi-intensive technology.
Penelitian ini bertujuan untuk mengetahui penerapan cara budidaya ikan yang baik (CBIB) serta faktor yang mempengaruhinya pada kegiatan pembesaran udang vaname (Litopenaeus vannamei) di pesisir Daerah Istimewa Yogyakarta. Disamping itu penelitian ini juga bertujuan untuk mengetahui teknologi budidaya udang yang diterapkan oleh petambak di pesisir Daerah Istimewa Yogyakarta. Metode dasar yang digunakan dalam penelitian ini adalah penelitian deskriptif dengan instrumen penelitian berupa kuesioner. Penelitian deskriptif bertujuan untuk memberikan gambaran tentang suatu masyarakat, suatu kelompok orang tertentu atau gambaran tentang suatu gejala. Teknik pengumpulan data dilakukan dengan wawancara dan observasi berstruktur untuk memperoleh gambaran lebih detail mengenai suatu gejala atau fenomena. Lokasi penelitian ditentukan secara sampling purposive, yaitu dengan fokus di wilayah Dusun Sidorejo, Desa Banaran, Kecamatan Galur, Kabupaten Kulon Progo, serta Dusun Kuwaru dan Dusun Ngentak, Desa Poncosari, Kecamatan Srandakan, Kabupaten Bantul. Alasan pengambilan 3 wilayah tersebut dikarenakan sebagai sentra produksi udang vaname yang pertama dan paling lama beroperasi di pesisir Daerah Istimewa Yogyakarta. Responden ditentukan secara proportionate random sampling dari 3 wilayah yang telah ditentukan. Penelitian ini berlangsung sejak tanggal 18 Juni 2015 hingga 12 Juli 2015. Penerapan cara budidaya ikan yang baik (CBIB) meliputi 10 parameter pada kegiatan pembesaran udang vaname (Litopenaeus vannamei). Kesepuluh parameter tersebut meliputi: pemilihan lokasi; penentuan tata letak dan desain konstruksi; pemilihan wadah budidaya; pengamanan biologi (biosecurity); pemilihan benih ikan (udang); penggunaan pakan ikan (udang); penggunaan probiotik; penggunaan desinfektan; cara panen; peralatan panen. Hasil penelitian menunjukan bahwa penerapan cara budidaya ikan yang baik (CBIB) pada pembesaran udang vaname (Litopenaeus vannamei) di pesisir Daerah Istimewa Yogyakarta rata-rata sebesar 62,24%. Faktor yang mempengaruhi penerapan cara budidaya ikan yang baik (CBIB) pada kegiatan pembesaran udang adalah adanya (komunikasi dan sosialisasi) mengenai teknis pembesaran udang oleh karyawan dari perusahaan pakan maupun probiotik. Penyuluhan (komunikasi dan sosialisasi), verifikasi (pencatatan) dan pengendalian berupa sertifikasi justru belum dilakukan oleh Dinas Kelautan dan Perikanan. Teknologi budidaya udang vaname (Litopenaeus vannamei) yang diterapkan oleh petambak di pesisir Daerah Istimewa Yogyakarta adalah teknologi semi intensif. Penerapan cara budidaya ikan yang baik (CBIB) oleh petambak pada kegiatan pembesaran udang vaname (Litopenaeus vannamei) di pesisir Daerah Istimewa Yogyakarta rata-rata sebesar 62,24%. Faktor yang mempengaruhi penerapan cara budidaya ikan yang baik adalah belum intensifnya sosialisasi tentang materi CBIB oleh pemerintah. Pengetahuan perihal cara budidaya ikan yang baik (CBIB) yang diperoleh petambak justru berasal dari karyawan pabrik pakan maupun probiotik udang. Teknologi budidaya udang yang diterapkan oleh petambak udang vaname (Litopenaeus vannamei) di pesisir Daerah Istimewa Yogyakarta adalah semi intensif.
Universitas Gadjah Mada
Departemen Perikanan, Fakultas Pertanian, Universitas Gadjah Mada
2016-08-12
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/12549
10.22146/jfs.12549
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 18, No 2 (2016); 47-53
Jurnal Perikanan Universitas Gadjah Mada; Vol 18, No 2 (2016); 47-53
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/12549/17923
Copyright (c) 2016 Jurnal Perikanan Universitas Gadjah Mada
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/12593
2018-07-29T13:52:23Z
jfs:ART
PERTUMBUHAN KEPITING BAKAU Scylla olivacea DENGAN RASIO JANTAN-BETINA BERBEDA YANG DIPELIHARA PADA KAWASAN MANGROVE
Growth of Varied Ratio of Male-Female Mud Crab Scylla olivacea Maintained in Mangrove Area
Karim, Muhammad Yusri
Azis, Hasni Y.
Muslimin, Muslimin
kepiting; pertumbuhan; rasio jantan dan betina; sintasan
crab; growth; ratio of male-female; survival
Budidaya kepiting bakau untuk penggemukan potensial untuk dikembangkan pada kawasan mangrove. Penelitian ini bertujuan untuk menentukan rasio jantan dan betina yang tepat pada budidaya penggemukan kepiting bakau (Scylla olivacea) yang dipelihara pada kawasan mangrove. Penelitian dilaksanakan di kawasan mangrove Kabupaten Pangkep, Propinsi Sulawesi Selatan. Hewan uji yang digunakan adalah kepiting bakau (S. olivacea) jantan dan betina berukuran bobot 250 ± 10 g yang ditebar dengan kepadatan 10 ekor/kurungan. Wadah yang digunakan adalah kurungan bambu berukuran panjang, lebar, dan tinggi masing-masing 1,0 x 1,0 x 1,0 m3 yang ditempatkan di kawasan mangrove. Pakan yang digunakan adalah ikan-ikan rucah dosis 10% dari biomassa kepiting dengan frekuensi pemberian pakan 2 kali sehari yakni pagi dan sore hari sebesar 30% dan 70%. Penelitian menggunakan rancangan acak lengkap (RAL) yang terdiri atas 4 perlakuan dan 3 ulangan. Sebagai perlakuan adalah rasio kepiting jantan dan betina, yaitu: 7:3, 6:4, 5:5, 4:6 dan 3:7 ekor/kurungan. Hasil analisis ragam memperlihatkan bahwa rasio jantan dan betina tidak berpengaruh nyata (p>0,05) pada sintasan kepiting, akan tetapi berpengaruh sangat nyata (p<0,01) pada pertumbuhan mutlak dan laju pertumbuhan harian kepiting bakau (S. olivacea). Sintasan yang dihasilkan berkisar 93,33-100%, pertumbuhan mutlak dan laju pertumbuhan harian kepiting tertinggi dihasilkan pada rasio jantan dan betina 7:3 dan 6:4 ekor/kurungan yakni 56,99 g dan 1,35%; 56,25 g dan 1,36%/hari sedangkan terendah pada rasio 3:7 ekor/kurungan yakni 28,97 g dan 0,73%/hari.
Mudcrab fattening is potential to develop in mangrove areas. The aim of the present study was to determine the best ratio of male and female in fattening of mud crab in the mangrove area. Research was conducted in the mangrove areas of Pangkep Regency, South Sulawesi Province. Test animals used were mud crab S. olivacea male and female measuring weight of 250 ± 10 g and were stocked at a density of 10 animals/cage. The bamboo cages measuring length, width, and height of 1.0 x 1.0 x 1.0 m3 were placed in the mangrove areas. Feed used was trash fish at 10% of the biomass with the feeding frequency of two times a day ie morning (30%) and afternoon (70%). The study used a completely randomized design (CRD) consisting of 4 treatments and 3 replications. The ratio of male and female crabs were 7:3; 6:4; 5:5; 4:6 and 3:7 crabs/cage, respectively. Results of analysis of variance showed that the treatment with the different ratio of male and female was not significant (p> 0.05) on the survival rate of crab, but was highly significant (p <0.01) on the absolute and daily growth rate. The resulting survival rate ranges from 93.33 to 100%, absolute growth and the highest daily growth rate of crabs produced at a ratio of males and females (7:3) and (6:4) crabs/cage ie: 56.99 and 1.35; 56.25 g and 1.36%/day, while the lowest was in the ratio (3:7) crabs/cage ie: 28.97 g and 0.73%/day.
Universitas Gadjah Mada
Kemenristek Dikti
Ministry of Research, Technology and Higher Education of the Republic of Indonesia
2016-03-20
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/12593
10.22146/jfs.12593
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 18, No 1 (2016); 1-6
Jurnal Perikanan Universitas Gadjah Mada; Vol 18, No 1 (2016); 1-6
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/12593/17442
Copyright (c) 2016 Journal of Fisheries Sciences
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/13049
2018-09-06T12:07:32Z
jfs:ART
Production and Application of Streptococcus iniae DNA Vaccine to Increase Immunity ff Nile Tilapia (Oreochromis niloticus)
PRODUKSI DAN APLIKASI VAKSIN DNA Streptococcus iniae UNTUK MENINGKATKAN IMUNITAS NILA (Oreochromis niloticus)
Sutanti, Sutanti
Megawati, Novi
Pranoto, Sugiyo H.
Aliah, Ratu Siti
DNA vaccine; Oreochromis niloticus; pgm gene; Streptococcus iniae
Vaksin DNA, Streptococcus iniae, gen pgm, Oreochromis niloticus
DNA vaccine Streptococcus iniae is a third generation of vaccines based on the gene encoding a vaccine antigen. Pgm is DNA-binding protein that activates expression of several important virulence gene, including those encoding polysaccharide capsule. The pgm gene controlled by MBA promoter has constructed successfully as a candidate of DNA vaccine to against S. iniae infection in Nile Tilapia. The goals of this study were to production and application of DNA Vaccine S. iniae to increase the nile tilapia immunity. Vaccine production was using plasmid isolation method from Escherichia coli dH5α containing pMBA-pgm. Vaccine verification was was accomplished by PCR using pgm gene S. iniae Fstrep and Rstrep specific primers, which revealed the 1,713 bp PCR product. Application of DNA vaccine was using 25, 50, 75, and 100ng/ml dosage with intraperitonial injection method .The challenge test was using 108 cfu/ml density of S. iniae. Observation test parameter were survival rate, relative percent survival, mean time to death, pgm gene, and organ histology such as liver, eyes, brain, spleen and kidney. Vaccine production was succeed using plasmid isolation method and containing pgm gene revealed 1713bp. the application of DNA vaccine was optimum at 50ng/ml dosage with SR value 96.667%, RPS value 88,461% and MTD value 4,6 days. The eyes histology shows opacity and exopthalmia, the other organ such as liver, spleen and kidney was necrosis. The DNA vaccine was optimum at 50ng/ml dosage.
Vaksin DNA Streptococcus iniae adalah vaksin generasi ketiga yang mengandung gen penyandi antigen vaksin. Pgm adalah protein DNA-binding yang mengaktifkan ekspresi gen virulensi, termasuk polisakarida kapsul protein. Konstruksi gen pgm yang dikendalikan oleh promoter MBA telah berhasil dibuat dan merupakan kandidat vaksin DNA untuk mengendalikan infeksi S. iniae pada ikan nila. Tujuan dari penelitian ini adalah untuk produksi dan aplikasi vaksin DNA S. iniae untuk meningkatkan imunitas ikan nila. Produksi vaksin dilakukan dengan metode isolasi plasmid dari bakteri Escherichia coli dH5α yang membawa konstruksi pMBA-pgm. Verifikasi vaksin DNA dilakukan dengan metode PCR menggunakan primer Fstrep dan Rstrep dengan ukuran target 1713 bp. Aplikasi vaksin DNA dilakukan pada dosis 25, 50,75, dan 100 ng/ml melalui metode suntik intraperitonial dan uji tantang menggunakan bakteri S. iniae dengan kepadatan 108 cfu/ml. Parameter yang diamati adalah persentase kelulushidupan (Survival rate/ SR), persentase RPS (Relative Percentage Survival), MTD (Mean Time To Death), keberadaan gen pgm, dan histologi organ hati, mata, otak, limpa dan ginjal. Produksi vaksin berhasil dilakukan menggunakan metode isolasi plasmid dan mengandung gen pgm dengan ukuran 1713 bp. Aplikasi vaksin DNA S. iniae menunjukkan bahwa dosis vaksin optimal adalah 50 ng/ml dengan nilai SR 96,667%; nilai RPS 88,461% dan MTD 4,6 hari. Histologi ikan nila yang terinfeksi S. iniae menunjukkan mata ikan nila mengalami opacity dan exopthalmia serta jaringan organ (hati, limpa dan ginjal) mengalami necrosis. Vaksin DNA telah berhasil diproduksi menggunakan metode isolasi plasmid dan telah diaplikasikan pada ikan nila dengan dosis optimum 50 ng/ml.
Universitas Gadjah Mada
BPPT
2016-08-12
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/13049
10.22146/jfs.13049
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 18, No 2 (2016); 61-66
Jurnal Perikanan Universitas Gadjah Mada; Vol 18, No 2 (2016); 61-66
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/13049/17927
https://jurnal.ugm.ac.id/jfs/article/downloadSuppFile/13049/1255
https://jurnal.ugm.ac.id/jfs/article/downloadSuppFile/13049/1256
https://jurnal.ugm.ac.id/jfs/article/downloadSuppFile/13049/1257
https://jurnal.ugm.ac.id/jfs/article/downloadSuppFile/13049/1258
https://jurnal.ugm.ac.id/jfs/article/downloadSuppFile/13049/1259
https://jurnal.ugm.ac.id/jfs/article/downloadSuppFile/13049/1260
https://jurnal.ugm.ac.id/jfs/article/downloadSuppFile/13049/1261
https://jurnal.ugm.ac.id/jfs/article/downloadSuppFile/13049/1262
Copyright (c) 2016 Jurnal Perikanan Universitas Gadjah Mada
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/17746
2018-07-29T13:52:26Z
jfs:ART
Effect of Simulated Ship Transport on the Susceptibility of the Green Mussel Perna viridis to Hyposalinity
PENGARUH SIMULASI TRANSPORTASI KAPAL PADA KERENTANAN KERANG HIJAU Perna viridis TERHADAP HYPOSALINITY
Ahmed, Yasser
Widianari, Dian Respati
effect of simulated ship transport; hyposalinity; Perna viridis
hyposalinity; pengaruh simulasi transportasi kapal; Perna viridis
Introduced species are species which exceed their natural distribution limits (native range) by a certain mode of introduction (vector). Natural movements are responsible to a limited extent. Introduction of a species could influence the susceptibility of a species to environmental stress no matter if introduced purposely or un purposely. Introduction of species could happen by natural movement i.e. organism can movement influenced by current and some organism can migrate to one area to another area; and human activity either purposely i.e. aquarium trade, aquaculture or un purposely such as accidentally through fouling on ship hulls. However, a dominant vector which has large contribution on species introduction is transported by ship hulls and ballast water tanks. Furthermore, the objective of this experiment is to investigate whether the organism can increase their tolerance during transport. The experimental design to mimicking transport condition in short term lab experiment and compared pre-stress group and non-stress group on the second stress. Afterward, looking forward the survival of the organism. Chosen of Green Mussels (P. viridis) from Muara Kamal, Jakarta Bay, and hyposaline stress. The response variable these experiments are survival and byssus. The results of this study showed that the group of pre-stress and non-stress group was no difference in the simulation of transport for survival. Byssus thread increase when recovery long enough and decrease when getting double stress.
Pergerakan organisme dipengaruhi oleh penyebaran alami dan aktivitas manusia. Spesies yang terbawa memiliki sebaran yang melebihi distribusi batas normal oleh pengaruh tertentu (vektor). Distribusi akibat kegiatan manusia mempengaruhi distribusi normal spesies. Pergerakan organisme yang dipengaruhi oleh manusia seperti budidaya, perdagangan ikan hias, dan aktivitas alat transportasi kapal. Peranan terbesar organisme yang terbawa adalah aktivitas kapal-kapal yang mendistribusikan barang-barang dan membawa organisme dalam tanki air ballast serta kemampuan organisme yang melekat pada lambung kapal (hull fouling). Distribusi organisme tersebut mempengaruhi kemampuan bertahan hidup selama transportasi. Oleh karena itu, perlu dilakukan uji simulasi kapal dengan mengekspose grup pra-stres dan grup non-stres sebelum masuk ke fase stres dan membandingkan laju ketahanan untuk melihat kemampuan organisme tersebut. Organisme yang dipilih adalah Kerang Hijau (P. viridis) dari Muara Kamal dengan menggunakan stres perbedaan salinitas (hyposalinity). Pengukuran respon variabel dari organisme tersebut yaitu ketahanan hidup dan byssus. Hasil dari penelitian ini menunjukkan bahwa grup pra-stres dan grup non-stres tidak ada perbedaan dalam simulasi transportasi baik untuk ketahanan hidup dan byssus.
Universitas Gadjah Mada
2016-03-20
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/17746
10.22146/jfs.17746
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 18, No 1 (2016); 31-37
Jurnal Perikanan Universitas Gadjah Mada; Vol 18, No 1 (2016); 31-37
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/17746/17276
Copyright (c) 2016 Journal of Fisheries Sciences
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/23885
2018-09-06T12:14:12Z
jfs:ART
Antioxidant Activity and Proximate Analysis of Dry Powder from Brown Seaweed Sargassum hystrix
AKTIVITAS ANTIOKSIDAN DAN ANALISIS PROKSIMAT BUBUK KERING ALGA COKELAT Sargassum hystrix
Lailatussifa, Radipta
Husni, Amir
Isnansetyo, Alim
Antioxidant activity; Sargassum hystrix dry powder; phytochemistry; the phenolic; compound nutrient contents
Aktivitas antioksidan; bubuk kering Sargassum hystrix; fitokimia; kandungan fenolik; kandungan nutrisi
This research aims to know antioxidant activity, total phenolic, nutrient, and screening phytochemistry compounds of S. hystrix dry powder. Water extract from the dried sample of brown algae (S. hystrix) was prepared and examined for its phenolic compounds. The amount of total phenolic compounds in water extract was about 11.43 g Gallic Acid Equivalent (GAE)/100 g of dry basis sample, as measured by using Folin-Ciocalteu method. The antioxidant activity (Radical Scavenging Activity/RSA) of BHT as a standard was high about 96% inhibition of radical DPPH with 1 mg dry sample/ml solvent. The IC50 of the BHT was 0.227 ± 0.001 mg of dry sample/ ml solvent. While the radical activity (RSA) of S. hystrix dry powder was about 65.28% at 1 mg dry sample/ml solvent. The IC50 of S. hystrix dry powder was 0.616 ± 0.005 mg of dry sample/ml solvent. Nutrient contents and bioactive compounds of dry powder S. hystrix were balanced to support antioxidant activity of the sample. The results suggest that this alga is a potential source of natural antioxidant.
Penelitian ini bertujuan untuk mengetahui aktivitas antioksidan, kandungan total fenol, kandungan nutrisi, dan kandungan fitokimia dari bubuk kering Sargassum hystrix. Ekstrak air dari sampel kering alga cokelat (S. hystrix) disiapkan dan diuji kandungan total fenolnya. Jumlah kandungan total fenol ekstrak air yaitu 11,43 g Gallic Acid Equivalent (GAE)/100 g berat kering sampel dengan menggunakan metode Folin-Ciocalteu. Aktivitas antioksidan (Radical Scavenging Activity/RSA) BHT yang digunakan sebagai standar tergolong tinggi, penghambatan radikal DPPH pada 1 mg sampel kering/ml pelarut yakni 96%. Nilai IC50 BHT adalah sebesar 0,227 ± 0,001 mg sampel kering/ml pelarut, sedangkan aktivitas penangkapan radikal (RSA) bubuk kering S. hystrix sebesar 65,28% pada 1 mg sampel kering/ml pelarut. Nilai IC50 bubuk kering S. hystrix adalah sebesar 0,616 ± 0,005 mg sampel kering/ml pelarut. Kandungan nutrisi dan komponen bioaktif bubuk kering S. hystrix seimbang untuk mendukung aktivitas antioksidan sampel. Hasil ini menunjukkan bahwa alga tersebut potensial sebagai sumber antioksidan alami.
Universitas Gadjah Mada
DIPA UGM 2015. Number: 244/LPPM/2015
DIPA UGM 2015 No. 244/LPPM/2015
2017-03-07
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/23885
10.22146/jfs.23885
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 19, No 1 (2017); 29-37
Jurnal Perikanan Universitas Gadjah Mada; Vol 19, No 1 (2017); 29-37
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/23885/19993
Copyright (c) 2017 Jurnal Perikanan Universitas Gadjah Mada
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/24488
2018-09-06T12:14:12Z
jfs:ART
Biosynthesis nnd Characterization of ZnO Nanoparticles with Extract of Green Seaweed Caulerpa sp.
Biosynthesis and Characterization of ZnO Nanoparticles with Extract of Green Seaweed Caulerpa sp.
Sari, Rodiah Nurbaya
Saridewi, Nanda
Shofwatunnisa, Shofwatunnisa
biosynthesis; Caulerpa sp.; ZnO nanoparticles
Biosintesis; Caulerpa sp.; nanopartikel ZnO
Biosynthesis and characterization of ZnO Nanoparticles by the reduction method have been performed. This study aims to determine the ability of Caulerpa sp. as a reducing agent and stabilizer. Extract Caulerpa sp. was reacted with Zn(CH3COO)2.2H2O solution in variation concentration of 0.05, 0.1, and 0.15 M and the pH of the solution was conditioned with NaOH 0.1 M added became 7, 8, 9. Characterization of ZnO nanoparticles was performed for functional group analysis (FTIR), surface morphology and particle distribution (SEM), knowing the phase type (XRD), and particle size and particle size (PSA). The result of phase analysis by XRD shows that the synthesis of ZnO nanoparticles using green seaweed extract Caulerpa sp. has been successfully performed with the formation of the optimum ZnO nanoparticles 0.15 M at pH 8. The ZnO nanoparticles had a relatively similar particle size distribution with an average particle size of 370.72 nm. Based on FTIR results it was known that the compound suspected to act as a bioreductor and stabilizer agent in the synthesis of ZnO nanoparticles was a protein
Biosynthesis and characterization of ZnO Nanoparticles by the reduction method have been performed. This study aims to determine the ability of Caulerpa sp. as a reducing agent and stabilizer. Extract Caulerpa sp. was reacted with Zn(CH3COO)2.2H2O solution in variation concentration of 0.05, 0.1, and 0.15 M and the pH of the solution was conditioned with NaOH 0.1 M added became 7, 8, 9. Characterization of ZnO nanoparticles was performed for functional group analysis (FTIR), surface morphology and particle distribution (SEM), knowing the phase type (XRD), and particle size and particle size (PSA). The result of phase analysis by XRD shows that the synthesis of ZnO nanoparticles using green seaweed extract Caulerpa sp. has been successfully performed with the formation of the optimum ZnO nanoparticles 0.15 M at pH 8. The ZnO nanoparticles had a relatively similar particle size distribution with an average particle size of 370.72 nm. Based on FTIR results it was known that the compound suspected to act as a bioreductor and stabilizer agent in the synthesis of ZnO nanoparticles was a protein
Universitas Gadjah Mada
Pengembangan Daya Saing Produk dan Bioteknologi Kelautan dan Perikanan
2017-03-07
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/24488
10.22146/jfs.24488
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 19, No 1 (2017); 17-28
Jurnal Perikanan Universitas Gadjah Mada; Vol 19, No 1 (2017); 17-28
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/24488/19992
Copyright (c) 2017 Jurnal Perikanan Universitas Gadjah Mada
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/25624
2018-07-29T13:52:26Z
jfs:ART
Efficiency and Energetics of Artemia (Artemia salina) Cysts Hatching in different Osmolarity Media
EFISIENSI DAN ENERGETIKA PENETASAN KISTA ARTEMIA (Artemia salina) PADA SALINITAS MEDIA YANG BERBEDA
Heryastuti, Endah
Anggoro, Sutrisno
Subandiyono, Subandiyono
artemia; decapsulation; energetics; hatching; salinity
artemia;dekapsulasi;energetika;penetasan;salinitas
Hatching rate of Artemia salina cysts in the hatching process is variable due to many factors. Osmolarity of the medium is one of the factors determining hatching process of A. salina cysts. The purpose of this study is to assess the hatching process of A. salina cysts in a various osmotic condition on the hatching energetics efficiency and rate. The experimental design used was a 2 x 5 factorial completely randomized design. The first factor is an addition of chlorine (non-decapsulation and decapsulation) and the second factor is osmolarity of medium (640.27; 787.02; 901.76; 1080.51 and 1227.25 mOsm.L-1H2O). The results showed that hatching of A. salina cyst on various osmotic condition has significantly differed the hatching rate. No significant differences in the hatching energetics efficiency were obtained from each experimental groups. Media with osmolarity level of iso-osmotic to hyperosmotic (901.76-1227,25 mOsm.L-1H2O) provides a high hatching rate. Energetics efficiency of artemia cysts hatching is ranged from 640.27 to 1227.25 mOsm.L-1H2O in both hypoosmotic, isosmotic and hyperosmotic media.
Tingkat penetasan kista Artemia salina dalam proses penetasan bervariasi karena banyak faktor. Osmolaritas medium merupakan salah satu faktor yang menentukan proses penetasan kista A. salina. Tujuan dari penelitian ini adalah untuk menilai proses penetasan kista A. salina dalam berbagai kondisi osmotik pada efisiensi dan laju penetasan energetika. Desain eksperimen yang digunakan adalah rancangan acak lengkap 2 x 5 faktorial. Faktor pertama adalah penambahan klorin (non-dekapsulasi dan dekapsulasi) dan faktor kedua adalah osmolaritas medium (640,27; 787,02; 901,76; 1080,51 dan 1227,25 mOsm.L-1H2O). Hasil penelitian menunjukkan bahwa penetasan kista A. salina pada berbagai kondisi osmotik secara signifikan berbeda dengan tingkat penetasan. Tidak ada perbedaan yang signifikan dalam efisiensi energetika penetasan yang diperoleh dari masing-masing kelompok eksperimen. Media dengan tingkat osmolaritas iso-osmotik menjadi hyperosmotic (901,76-1227,25 mOsm.L-1H2O) memberikan tingkat penetasan yang tinggi. Energetika efisiensi penetrasi kista A. salina berkisar antara 640,27 sampai 1227,25 mOsm.L-1H2O pada media hypoosmotic, isosmotic dan hyperosmotic.
Universitas Gadjah Mada
2016-03-20
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/25624
10.22146/jfs.25624
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 18, No 1 (2016); 27-30
Jurnal Perikanan Universitas Gadjah Mada; Vol 18, No 1 (2016); 27-30
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/25624/17275
Copyright (c) 2016 Jurnal Perikanan Universitas Gadjah Mada
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/25841
2019-03-15T02:36:17Z
jfs:ART
Restorasi Ekosistem Mangrove Desa Pesisir Berbasis Co-Management
Restoration of Mangrove Ecosystem in Coastal Village Based on Co-Management
Rudianto, Rudianto
AHP; collaborative management; PLS; restorasi; SWOT
Coastal; collaborative management; ecosystem; restoration
Tujuan penelitian adalah untuk menyusun urutan restorasi ekosistem mangrove desa pesisir guna mengatasi kerusakan lingkungan pesisir yang telah mengalami kerusakan akibat perubahan fungsi lahan. Pengumpulan data dilakukan dengan menggunakan kuisioner dan wawancara kepada pemangku kepentingan. Responden berasal dari Kabupaten Malang dan Kabupaten Gresik masing-masing terdiri dari masyarakat pesisir sebanyak 30 orang, Bappeda 2 orang, Dinas Kelautan dan Perikanan 2 orang, Dinas Kehutanan 2 orang, pemerintah kecamatan 2 orang, pemerintah desa 5 orang, dan swasta 6 orang. Waktu penelitian dilaksanakan selama tiga tahun mulai dari tahun 2013 sampai tahun 2016 dengan lokasi di kabupaten Gresik dan Kabupaten Malang. Analisis data dilakukan dengan metode Partial Least Square dan Analytical Hierarchy Process untuk mengetahui urutan prioritas penanganan restorasi ekosistem pesisir. Selain itu dilakukan analisis SWOT untuk mengetahui kapasitas kelembagaan desa dan yang akan bertanggung jawab melakukan restorasi ekosistem pesisir. Hasil penelitian diperoleh urutan pioritas utama penanganan kerusakan ekosistem pesisir adalah hutan mangrove, kedua adalah terumbu karang, ketiga adalah kawasan estuary, dan keempat adalah kawasan padang lamun. Institusi yang bertanggung jawab untuk menangani tingkat kerusakan ekosistem pesisir adalah pemerintah desa yang didukung oleh Satuan Kerja Perangkat Daerah (SKPD) di tingkat kabupaten. Di samping itu peran pemerintah, swasta dan masyarakat menjadi kunci sukses berhasilnya pelaksanaan restorasi. Petunjuk teknis pelaksanaan restorasi ekosistem pesisir berbasis co-management sangat diperlukan untuk melakukan restorasi ekosistem pesisir.
The purpose of the research was to reorder the mangrove ecosystem restoration of coastal villages in order to overcome the damage coastal environments that have been damaged as a result of changes in land use. Data collection was done by using questionnaires and interviews with stakeholders. The study was conducted for three years from 2013 until 2016 with locations in Gresik and Malang districts. Data analysis was done by Partial Least Square and Analytical Hierarchy Process method to find out the priority order of restoration of the coastal ecosystem. In addition to SWOT analysis was conducted to determine the institutional capacity of the village and which would be responsible for restoring coastal ecosystems. The results show that the order of handling on coastal ecosystem damage was firstly mangrove forest, secondly coral reef, thirdly estuary area and fourthly seagrass area. Institutions responsible for handling the level of damage to coastal ecosystems was a village government, which was supported by the regional work units (SKPD) at the district level. Besides that, the role of government, private and community became the key to success on the successful implementation of restoration. Technical manual implementation of Coastal Ecosystem restoration-based co-management was necessary for the restoration of coastal ecosystems.
Universitas Gadjah Mada
Fakultas Perikanan dan Ilmu Kelautan Universitas Brawijaya
Faculty of Fisheries and Marine Science, University of Brawijaya, Malang.
2018-05-27
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/25841
10.22146/jfs.25841
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 20, No 1 (2018); 1-12
Jurnal Perikanan Universitas Gadjah Mada; Vol 20, No 1 (2018); 1-12
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/25841/21039
Copyright (c) 2018 Jurnal Perikanan Universitas Gadjah Mada
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/25961
2018-09-06T12:14:12Z
jfs:ART
Bioformation of N-Acetylglucosamine from Shrimp Shell Chitin by Serratia marcescens PT-6 Cultured in various pH and Temperature
Bioformation of N-Acetylglucosamine from Shrimp Shell Chitin by Serratia marcescens PT-6 Cultured in Various pH and Temperature
Sari, Bekti Wulan
Isnaini, Nurul Binti
Puspita, Indun Dewi
Husni, Amir
Ustadi, Ustadi
Chitinase; chitin; N-Acetylglucosamine; Serratia marcescens PT-6
Chitinase; chitin; N-Acetylglucosamine; Serratia marcescens PT-6
The study aimed to determine the effect of pH and temperature on N-Acetylglucosamine (NAG) formation from shrimp shell chitin by Serratia marcescens PT-6 fermented in chitin broth medium. Parameters examined on NAG formation include bacteria growth, chitinase activity (U/ml), and NAG concentration in medium (mg/ ml). Bacteria growth was measured by turbidity (OD600), while chitinase activity and NAG concentration in the medium were analyzed quantitatively by colorimetric assay. The variation of initial pH examined in chitin broth medium was 5; 6; 7; 8, while temperature variation was 30°C; 37°C; dan 40°C. The results show that maximum concentration of NAG formed by Serratia marcescens PT-6 was 33.86 µg/ml on day-3 of fermentation, at pH 7 and temperature of 30°C. Chitinase activity on the same day was 0.002 U/ml, while OD600 value of the culture was 0.42 indicating the bacteria were in the log phase. This research implies that Serratia marcescens PT-6 is potential to be optimized further for the bioconversion process of NAG from shrimp shell waste through an enzymatic method by modifying its culture condition.
The study aimed to determine the effect of pH and temperature on N-Acetylglucosamine (GlcNAc) formation from shrimp shell chitin by Serratia marcescens PT-6 fermented in chitin broth medium. Parameters examined on GlcNAc formation include bacteria growth, chitinase activity (U/ml), and GlcNAc concentration in medium (mg/ ml). Bacteria growth was measured by turbidity (OD600), while chitinase activity and GlcNAc concentration in the medium were analyzed quantitatively by colorimetric assay. The variation of initial pH examined in chitin broth medium was 5; 6; 7; 8, while temperature variation was 30°C; 37°C; dan 40°C. The results show that maximum concentration of GlcNAc formed by Serratia marcescens PT-6 was 39.30 mg/ml on day 5 of fermentation, at pH 7 and temperature of 30°C. Chitinase activity on the same day was 0.007 U/ml, while OD600 value of the culture was 0.51 indicating the bacteria were in the log phase. This research implies that Serratia marcescens PT-6 is potential to be optimized further for the bioconversion process of GlcNAc from shrimp shell waste through an enzymatic method by modifying its growth environment.
Universitas Gadjah Mada
Fakultas Pertanian, Universitas Gadjah Mada.
2017-03-12
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/25961
10.22146/jfs.25961
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 19, No 1 (2017); 53-59
Jurnal Perikanan Universitas Gadjah Mada; Vol 19, No 1 (2017); 53-59
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/25961/19998
Copyright (c) 2017 Jurnal Perikanan Universitas Gadjah Mada
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/25978
2018-09-06T12:07:32Z
jfs:ART
Utilization of Azolla sp. to Decreass COD (Chemical Oxygen Demand) Content in Laundry Waste Water
PEMANFAATAN Azolla sp. UNTUK PENURUNAN KANDUNGAN COD DALAM LIMBAH LAUNDRY
Mentari, Ammelia
Probosunu, Namastra
Adharini, Ratih Ida
Azolla sp.; COD; water quality; laundry waste water; completely randomize design
Azolla sp.; COD; kualitas air; limbah laundry; rancangan acak lengkap
This research aims to know the ability of Azolla sp. to improve the water quality of laundry wastewater based on COD. This research applied 6 treatments with 3 replications using Completely Randomize Design (CRD) analysis. The treatment consists of P0 (0 gram), P1 (50 gram), P2 (100 gram), P3 (150 gram), and P4 (200 gram) which was placed in a tank that contains 30 liters of laundry wastewater with 50% dilution. The parameters of water quality such as COD, pH, water temperature, and biomass were being observed in every 7 days for 21 days. The result showed that Azolla sp. has the ability to improve the quality of the water from laundry wastewater, especially in lowering the COD level. The results showed that the laundry wastewater’s COD decreases from 133,43 mg/L to 41,52 mg/L. The density and the effective time of Azolla sp. in improving the quality of laundry wastewater is on 7 days of 150 gram treatment or 14 days of 50 gram treatment
Penelitian ini bertujuan untuk mengetahui kemampuan Azolla sp.dalam memperbaiki kualitas air limbah laundry utamanya parameter kandungan COD. Penelitian dilakukan menggunakan 6 perlakuan dengan masing-masing 3 ulangan dan disusun berdasarkan Rancangan Acak Lengkap. Perlakuan terdiri dari P0 (0 gram), P1 (50 gram), P2 (100 gram), P3 (150 gram), dan P4 (200 gram) yang diletakan dalam bak berisi 30 liter air limbah laundry dengan pengenceran 50%. Parameter kualitas air yang diamati yaitu COD, pH, suhu air, dan biomassa setiap 7 hari selama 21 hari. Hasil penelitian menunjukan bahwa Azolla sp. memiliki kemampuan untuk memperbaiki kualitas air limbah laundry terutama menurunkan COD. Limbah laundry setelah diperlakukan dengan Azolla sp. selama 21 hari nilai COD turun dari 133,43 mg/L menjadi 41,52 mg/L. Kepadatan dan waktu efektif Azolla sp. dalam memperbaiki kualitas air limbah laundry yaitu pada perlakuan 150 gram selama 7 hari karena memerlukan waktu yang lebih singkat sehingga lebih efisien.
Universitas Gadjah Mada
2016-08-12
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/25978
10.22146/jfs.25978
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 18, No 2 (2016); 67-72
Jurnal Perikanan Universitas Gadjah Mada; Vol 18, No 2 (2016); 67-72
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/25978/17925
Copyright (c) 2016 Jurnal Perikanan Universitas Gadjah Mada
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/26015
2018-09-06T12:20:50Z
jfs:ART
The Effect of Thickness of Medium for Silkworm (Tubifex sp.) Culture using Waste Sludge of Catfish Cultivation
Pengaruh Ketebalan Media Budidaya Cacing Sutra (Tubifex sp.) Menggunakan Lumpur Limbah Budidaya Lele
Suryadin, Dindin
Helmiati, Senny
Rustadi, Rustadi
Organic material; biomass; Tubifex sp.; thickness; waste of catfish culture
Bahan organik; biomassa; cacing sutera; ketebalan; limbah budidaya lele
This research aims to know the influence of the thickness of catfish culture waste on silk worm (Tubifex sp.) biomass. The research was conducted with culturing Tubifex sp. in different thickness media of the waste as treatments. The treatments consist of the waste 2, 4, 8 and 12 cm thickness of medium with 6 cm depth. The stock densities 150 g/m3 with average weight 0.0062+0.00032 g. The parameter that analyzed is biomass and population of Tubifex sp.. Data analyzed by analysis of variance and posthoc test is Duncan’s Multiple Range Test. The result shows that diversification of medium thickness gives the real influence (P<0.05) to Tubifex sp. biomass. The highest biomass 1745.14±143.77 g/m3 and population 233,848.46±19265.61 ind./m3 on the treatment with 8 cm thickness. The relationship between treatment and biomass production of Tubifex sp. is quadratic relationship with y = -30.405x2 + 552.18x – 823.55. The optimum thickness of medium that results maximum biomass production is 9.1 cm.
Penelitian ini bertujuan untuk mengetahui pengaruh limbah budidaya lele sebagai media budidaya cacing sutera dan mendapatkan ketebalan media yang menghasilkan biomassa cacing sutera tertinggi. Penelitian dilakukan menggunakan sistem wadah bertingkat dengan aliran air secara resirkulasi. Wadah budidaya yang digunakan berukuran 40x30x20 cm3. Penelitian dilakukan secara eksperimen dengan rancangan penelitian berupa Rancangan Acak Kelompok Lengkap dengan empat perlakuan dan masing-masing tiga ulangan, yaitu P1 (ketebalan media 2 cm); P2 (ketebalan media 4 cm); P3 (ketebalan media 8 cm); P4 (ketebalan media 12 cm) dengan kedalaman air 6 cm. Padat tebar Tubifex sp. sebesar 150 g/m3 dengan rerata berat 0,0062±0,00032 g. Data dianalisis menggunakan sidik ragam dan uji lanjut Duncan’s Multiple Range Test. Perbedaan ketebalan media budidaya berpengaruh nyata (P<0,05) terhadap produksi biomassa cacing sutera. Biomassa cacing sutera tertinggi sebesar 1745,14±143,77g/m3 atau meningkat sebesar 12,65 kali lipat dan populasi sebesar 233848,46±19265,61 ind./m3 pada ketebalan media 8 cm. Hubungan perlakuan dengan produksi biomassa cacing sutera diperoleh hubungan kuadratik mengikuti persamaan y= -31,428x2 + 586,47x – 743,54. Ketebalan media yang optimal untuk menghasilkan produksi biomassa maksimal yaitu 9,1 cm.
Universitas Gadjah Mada
2017-05-10
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/26015
10.22146/jfs.26015
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 19, No 2 (2017); 97-105
Jurnal Perikanan Universitas Gadjah Mada; Vol 19, No 2 (2017); 97-105
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/26015/20972
Copyright (c) 2017 Jurnal Perikanan Universitas Gadjah Mada
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/26214
2018-09-06T12:07:32Z
jfs:ART
SEBARAN LOKASI PENELURAN PENYU HIJAU (Chelonia mydas) DI PULAU SANGALAKI KEPULAUAN DERAWAN KABUPATEN BERAU
Distribution of Nesting Site of Green Turtle (Chelonia mydas) in Sangalaki Island of Derawan Islands, Berau District
Ibrahim, Andi
Djumanto, Djumanto
Probosunu, Namastra
Penyu hijau, musim bertelur, Pulau Sangalaki
egg laying season; green turtles; sangalaki island
Populasi penyu hijau (Chelonia mydas) yang bertelur di kawasan konservasi kepulauan Derawan semakin menurun disebabkan oleh berbagai faktor. Penelitian ini bertujuan untuk mengetahui jumlah peneluran tiap induk penyu hijau dan korelasinya terhadap naungan, lebar pantai berpasir dan fase bulan. Penelitian ini dilakukan pada tanggal 24 Januari–31 Maret 2015 berlokasi di Pulau Sangalaki. Pengamatan induk bertelur dilakukan dengan menyusur pantai tiap malam untuk menemukan induk yang sedang bertelur. Pada induk yang sudah bertelur, maka sarangnya diberi tanda di lokasi tempat bertelur. Pada hari berikutnya dilakukan penggalian sarang, pengambilan telur, dan pengukuran kondisi lingkungan tempat peneluran. Data yang dikumpulkan adalah jumlah telur tiap sarang dan kondisi lingkungan tempat peneluran. Kondisi lingkungan yang diukur meliputi kedalaman sarang, suhu substrat, jarak sarang terhadap naungan dan garis pantai saat surut terendah. Analisis data dilakukan secara deskriptif terhadap jumlah telur dan parameter lingkungan. Hasil penelitian menunjukkan rerata jumlah telur tiap sarang sebanyak 97 butir dengan kisaran 45–127 butir, ukuran panjang karapas 96 cm dengan kisaran 86-107 cm, rerata kedalaman sarang 73 cm dengan kisaran 56-87 cm. Penyu yang bertelur semakin banyak akan menggali sarang semakin dalam, namun tidak ada korelasi antara panjang karapas dengan jumlah telur. Jumlah rerata induk penyu hijau yang bertelur di Pulau Sangalaki adalah 486 ekor/bulan dengan kisaran 168–1085 ekor/bulan. Musim barat dan timur mempengaruhi frekuensi peneluran. Frekuensi peneluran terjadi sepanjang tahun dan frekuensi peneluran paling tinggi terjadi pada bulan Agustus yang bertepatan dengan puncak musim Timur. Frekuensi peneluran pada musim Timur empat kali lebih banyak daripada saat musim Barat. Frekuensi pendaratan penyu hijau tidak dipengaruhi oleh fase bulan. Berdasarkan lokasi penyu hijau bertelur, pantai yang banyak dipilih untuk lokasi bertelur terdapat di sebelah barat laut, timur laut dan selatan Pulau Sangalaki. Sarang penyu hijau lebih banyak ditemukan pada daerah naungan vegetasi (64%) daripada daerah pasir terbuka (36%).
Population of green turtle (Chelonia mydas) that laid their eggs in the Derawan Islands conservation area was declined due to various factors. The aim of this study was to determine the number of egg that was laid down into the nest for each green turtle parent and its correlation to shade, sandy beach width, and moon phase. The study was conducted from 24 January to 31 March 2015 in the Sangalaki Island. The observation of the broods stock was done by walking down the beach in the night to find out the broodstock that laid the eggs and counted the number. A sign was given to the nest of broodstock that finished laying the eggs. On the following day, nest excavation, egg collection, and the environmental measurement were conducted. Environmental conditions were measured include the depth of the nest, substrate temperature, the distance of the nest site to the shading trees and the border line of lowest tide. Data analysis was done descriptively by counting the number of eggs and environmental parameters. The results show that the average number of egg per nest was 97 items with the range of 45 - 127 items, the length of the carapace was 96 cm with a range of 86 - 107 cm, the average depth of the nest hole was 73 cm with a range of 56 - 87 cm. Broods stock of green turtle that laid more eggs would dig nest hole deeper, but there was no correlation between the carapace length and the number of the laid eggs. The average number of green turtle broods stock that lay eggs in the Sangalaki Island was 486 individual/ month with the range of 168 - 1085 individu/month. The west and east seasons affect the frequency of nesting and the laid eggs. The frequency of spawning occured throughout the year and the highest spawning frequency occured in August which coincides with the peak of the East Season. The frequency of spawning during the East Season was four times higher than during the West season. The frequency of green turtle landing was not affected by the lunar phase. Based on the location of laying egg, the beaches that were selected for laying egg are located in the northwest, northeast, and south parts of the Sangalaki Island. The Green turtle nests were commonly found in the vegetation shading areas (64%) than open sand areas (36%).
Universitas Gadjah Mada
Departemen Perikanan
2016-08-12
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/26214
10.22146/jfs.26214
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 18, No 2 (2016); 39-46
Jurnal Perikanan Universitas Gadjah Mada; Vol 18, No 2 (2016); 39-46
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/26214/17922
Copyright (c) 2016 Jurnal Perikanan Universitas Gadjah Mada
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/26461
2018-09-06T12:14:12Z
jfs:ART
The Potential of Hermetia illucens Larvae as Reducer of Industrial Fish Processing Waste
POTENSI LARVA Hermetia illucens SEBAGAI PEREDUKSI LIMBAH INDUSTRI PENGOLAHAN HASIL PERIKANAN
Hakim, Arif Rahman
Prasetya, Agus
Petrus, Himawan T.B.M
bioconversion; Hermetia illucens larvae; waste of fishery industry
biokonversi; larva Hermetia illucens; limbah industri perikanan
Organic waste from processing fishery products can be a serious problem if not handled properly, as the number increases every year. Though the content of nutrients in the waste is still high, especially protein content. The bioconversion process of organic matter from the waste is expected to be able to overcome the problems of industrial waste and increase its added value. Bioconversion using insect larvae Hermetia illucens has many advantages than other conversion processes. The purpose of this study was to determine the ability of larvae in reducing the waste fishery industry. Waste used in this study was head of the tuna, with feeding rates of 60, 80 and 100 mg/larva/day. 200 larvae were used in each treatment and 3 replications. Observation time and culturing of larvae was 19 days then calculated substrate reduction, waste reduction index (WRI), the weight of larvae and protein and lipids content. The result of observations showed that feeding rate 60 mg/larva/day give optimum on parameters. The substrate reduction was 77.09%, WRI 4.06 (% / day), the weight of larva was 72.59 mg. Protein content 25.38 % (wb) and lipids 6.85 % (wb). According to that result, it could be to concluded that larvae have potential as an agent of reducing of waste fishery products.
Limbah organik dari industri pengolahan ikan bisa menjadi masalah serius jika tidak ditangani dengan baik, karena jumlahnya yang terus meningkat setiap tahun. Padahal kandungan nutrisinya masih tinggi, terutama kadar proteinnya. Proses biokonversi bahan organik dari limbah diharapkan mampu menjadi solusi permasalahan limbah industri dan bisa meningkatkan nilai tambahnya. Biokonversi menggunakan larva serangga Hermetia illucens mempunyai banyak keunggulan dibandingkan proses konversi lainnya. Tujuan dari penelitian ini adalah untuk mengetahui kemampuan larva dalam mengurangi limbah dari industri perikanan. Limbah yang digunakan ialah kepala ikan tuna. Dengan variasi perlakuan jumlah kepala tuna sebagai pakan larva yaitu 60, 80 dan 100 mg/larva/hari. Larva yang digunakan sebanyak 200 ekor dan dilakukan pengulangan perlakuan sebanyak 3 kali. Waktu pengamatan dan pemeliharaan larva selama 19 hari, kemudian dihitung substrate reduction, waste reduction index (WRI), bobot larva serta kandungan protein dan lemak dari larva. Hasil pengamatan menunjukkan bahwa jumlah pakan optimum ialah 60 mg/larva/hari, meliputi parameter substrate reduction 77,09%, WRI 4,06%/hari, bobot larva 72,59 mg, kandungan protein 25,38 % (berat basah) dan kandungan lemak 6,85% (berat basah). Berdasarkan hasil tersebut bisa disimpulkan bahwa larva memiliki potensi sebagai agen pengurai limbah industri pengolahan perikanan.
Universitas Gadjah Mada
Loka Research of Mechanization Processing of Fishery Products
Loka Riset Mekanisasi Pengolahan Hasil Perikanan
2017-03-07
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/26461
10.22146/jfs.26461
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 19, No 1 (2017); 39-44
Jurnal Perikanan Universitas Gadjah Mada; Vol 19, No 1 (2017); 39-44
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/26461/19994
Copyright (c) 2017 Jurnal Perikanan Universitas Gadjah Mada
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/26509
2018-09-06T12:14:12Z
jfs:ART
The Effect of Vitamin E Supplement in the Diet on Gonad Maturation of Nilem (Osteochilus hasselti, CV)
The Effect of Vitamin E Supplement in the Diet on Gonad Maturation of Nilem (Osteochilus hasselti, CV)
Tarigan, Nurbety
Supriatna, Iman
Setiadi, M. Agus
Affandi, Ridwan
Nilem; gonad; maturation; vitamin E
Common carp; gonad; maturation; vitamin E
The aim of this study was to examine the effect of vitamin E on gonad maturation and determining the best doses in improving gonad maturation in nilem fish. In this study used a flockof fishbrood which is never experienced spawning. There are 4 doses of vitamin E which used in this research following by 0, 125, 250, and 375 mg/kg. The results showed that fortifiedof vitamin E which were in feed significantly affected to the percentage of gonad development, gonadosomatic index (GSI), hepatosomatic index (IHS), fecundity, the diameter of eggs, and the percentage of egg maturity at P<0.05. The result showed that the best dose of vitamin E to reach gonad maturity was 375 mg kg-1 with six weeks maintenance. The percentage of gonad maturity was 100%, IGS was 11.50%, IHS was 0.34%, fecundity was 23.484 eggs/individual, the diameters of the eggs were 0.31 mm, and the percentage of mature eggs was 64.44%. These results supported the potential of feed additives such as vitamin E plays a critical role in enhancing gonad maturation in nilem fish thereby providing methods to improve fish reproduction
The aim of this study was to examine the effect of vitamin E on gonad maturation and determining the best doses in improving of gonad maturation in nilem fish. In this study used a flock of fish brood which is never experienced spawning. There are 4 doses of vitamin E which used in this research following by 0, 125, 250, and 375 mg kg-1. The results showed that fortified of vitamin E which were in feed significantly affected to the percentage of gonad development, gonado somatic index (IGS), hepato somatic index (IHS), fecundity, diameter of eggs, and the percentage of egg maturity at P<0.05. The result showed that the best dose of vitamin E to reach gonad maturity were 375 mg kg-1 with six weeks maintenanced. The percentage of gonad maturity was 100%, IGS was 11.50%, IHS was 0.34%, fecundity was 23.484 eggs/individual, the diameter of the eggs were 0.31 mm, and the percentage of mature eggs 64.44%. These results supported the potentially of feed additives such as vitamin E plays a critical role in enhancing gonad maturation in Nilem fish thereby providing a methods to improve fish reproduction.
Universitas Gadjah Mada
BPPBAT BOGOR
Balai Riset Perikanan Budidaya Air Tawar Sempur-Bogor
2017-03-07
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/26509
10.22146/jfs.26509
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 19, No 1 (2017); 1-9
Jurnal Perikanan Universitas Gadjah Mada; Vol 19, No 1 (2017); 1-9
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/26509/19481
Copyright (c) 2017 Jurnal Perikanan Universitas Gadjah Mada
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/26917
2018-09-06T12:07:32Z
jfs:ART
Isolation and Identification of Aeromonas spp. from Diseased African Catfish (Clarias sp.) in Ngawi Regency
ISOLASI DAN IDENTIFIKASI BAKTERI Aeromonas sp. DARI LELE DUMBO (Clarias sp.) DI KABUPATEN NGAWI
Rejeki, Sri
Triyanto, Triyanto
Murwantoko, Murwantoko
Aeromond; african catfish; identification; pathogenicity
Aeromonas, identifikasi, lele dumbo, patogenisitas
African catfish (Clarias sp.) is one of important freshwater fish which prefer consumed by people due to many advantages. Aeromonas sp. bacteria are dangerous patogen for freshwater fishes. This objective of the research was to isolate, identify and determine pathogenicity of Aeromonas sp. bacteria from African catfish from District Ngawi. The samples of catfish with 20 - 25 cm length showing clinical signs disease were obtained from three sub districts. Bacteria were isolated from kidney and inoculated into GSP medium. Characterization and identification through morphology of bacterial colonies, cells and biochemical test. Postulate Koch was conducted to verify abaility to couse disease. Pathogenicity was analyzed by determination of value of Lethal Dosage-50 on catfish on 7 - 9 cm length. The result showed that the disease symptoms of fish infected by the bacteria were skin ulcer, abdominal swelling and kidney damage. Fifteen bacterial isolates were collected which five, six and four isolates were from Kecamatan Karang Jati, Geneng dan Paron.sub-district respectively. The result showed 12 isolates (GKJ1, GKJ3, GKJ4, GGN1, GGN2, GGN3, GGN4, GGN5, GGN6, GPR2, GPR3 and GPR4) were identified as Aeromonas hydrophila. Three isolates (GKJ2, GKJ5 and GPR1) were identified as A. salmonicida. Isolate of A. hydrophila GKJ1, GKJ4, GGN2, GGN5, GPR2 and GPR4 were virulent to African catfish with LD50 values of 1,55 x 105, 3,89 x 105, 7,24 x 105, 2,39 x 105, 6,61 x 104 and 1,95 x 104 cfu/fish.
Lele dumbo (Clarias sp.) merupakan satu jenis ikan air tawar penting yang digemari oleh masyarakat karena memiliki banyak kelebihan. Bakteri.Aeromonas merupakan penyakit berbahaya pada budidaya air tawar. Penelitian ini bertujuan untuk mengisolasi, mengidentifikasi dan mengetahui pathogenisitas bakteri Aeromonas spp. dari lele dumbo dari Kabupaten Ngawi. Sampel ikan lele berukuran 20-25 cm yang menunjukkan gejala sakit diperoleh dari kolam pembesaran di 3 kecamatan. Bakteri disisolasi dari ginjal diinokulasikan pada medium GSP. Karakterisasi dan identifikasi bakteri melalui pengamatan morfologi koloni, sel, dan sifat biokimia. Pembuktian sifat patogen dengan uji Postulat Koch. Tingkat patogensitas dianalisis dengan mengukur nilai Lethal Dosage 50 pada benih lele ukuran 7-9 cm. Hasil pengamatan menunjukkan gejala penyakit pada ikan yang terserang bakteri berupa luka borok pada kulit, pembengkakan pada bagian perut dan kerusakan ginjal. Isolasi bakteri yang diperoleh berjumlah 15 yang terdiri dari lima, enam dan empat isolat yang masing masing berasal dari Kecamatan Karang Jati, Geneng dan Paron. Hasil identifikasi menunjukkan bahwa 12 isolat (GKJ1, GKJ3, GKJ4, GGN1, GGN2, GGN3, GGN4, GGN5, GGN6, GPR2, GPR3 dan GPR4 teridentifikasi sebagai bakteri Aeromonas hydrophila. Tiga isolat (GKJ2, GKJ5 dan GPR1) teridentifikasi sebagai bakteri A. salmonicida. Isolat A. hydrophila GKJ1, GKJ4, GGN2, GGN5, GPR2 dan GPR4 bersifat virulen terhadap lele dumbo dengan LD50 1,55 x 105, 3,89 x 105, 7,24 x 105, 2,39 x 105, 6,61 x 104 dan 1,95 x 104 cfu/ikan.
Universitas Gadjah Mada
2016-08-12
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/26917
10.22146/jfs.26917
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 18, No 2 (2016); 55-60
Jurnal Perikanan Universitas Gadjah Mada; Vol 18, No 2 (2016); 55-60
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/26917/17924
Copyright (c) 2016 Jurnal Perikanan Universitas Gadjah Mada
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/26946
2018-09-06T12:14:12Z
jfs:ART
Species Composition of Sea Cucumber (Holothuroidea) in the Kapisawar Village - Meos Manswar District Raja Ampat Regency
KOMPOSISI SPESIES TERIPANG (Holothuroidea) DI PERAIRAN KAMPUNG KAPISAWAR DISTRIK MEOS MANSWAR KABUPATEN RAJA AMPAT
Handayani, Tutik
Sabariah, Vera
Hambuako, Ronald R.
Kapisawar; sea cucumber; spesies composition; Raja Ampat; spicula
Kapisawar; komposisi jenis; Raja Ampat; spikula; teripang
This study aimed to investigate the species and its composition of sea cucumber in the Kapisawar village of Meos Manswar District in Raja Ampat Regency. This research was conducted from March to April 2014. Descriptive method was applied directly through observations by using belt transects that consisted of three stations. Then, identification of species was done through spicula appearance of sea cucumbers. Results showed that from all research stations, 10 species of sea cucumbers were found, and these species derived from 3 families and 4 genera. The species of sea cucumbers are Holothuria scabra, H. leucospilota, H. rigida, H. sucosa, Bohadschia similis, B. marmorata, B. vitiensis, Synapta maculate, Opheodesoma grisea and Stichopus variegatus. The highest number of sea cucumber species was found in the station I which consisted of 9 species from 2 families and 4 genera, followed by station II (2 families and 3 genera), and the lowest at the station III of 3 species (2 families and 2 genera). Some of the sea cucumber found in the research station were economic importance, with the highest composition was at the station I because of its suitable habitat condition and the lowest in station III due to far from the village.
Penelitian ini bertujuan untuk mengetahui jenis dan komposisi teripang di Perairan Kampung Kapisawar. Penelitian ini dilaksanakan selama 1 bulan yaitu pada Maret-April 2014, bertempat di perairan kampung Kapisawar Distrik Meos Mansar Kabupaten Raja Ampat Papua Barat. Metode penelitian yang digunakan adalah metode deskriptif dengan teknik observasi secara langsung menggunakan belt transect. Identifikasi spesies teripang dilakukan dengan cara pengamatan spikula. Hasil yang diperoleh dari ketiga stasiun penelitian ditemukan 10 jenis teripang yang berasal dari 3 famili 4 genus. Sepuluh jenis teripang yang ditemukan di perairan Kampung Kapisawar antara lain yaitu Holothuria scabra, H. leucospilota, H. rigida, H. sucosa, Bohadschia similis, B. marmorata, B. vitiensis, Synapta maculate, Opheodesoma grisea dan Stichopus variegatus. Komposisi teripang paling tinggi ditemukan pada stasiun I yaitu sebanyak 9 spesies yang berasal dari 3 famili dan 4 genus, stasiun II ditemukan teripang yang berasal dari 2 famili dan 3 genus dan terendah pada perairan stasiun III ditemukan 3 spesies yang berasal dari 2 famili dan 2 genus. Teripang yang ditemukan termasuk jenis yang bernilai ekonomis dengan komposisi tertinggi ditemukan di stasiun I karena habitat yang terdiri dari substrat berpasir, pasir dengan lamun, pecahan karang dan karang serta kualitas perairan, sedangkan komposisi terendah terdapat di perairan stasiun III yang agak jauh dari perkampungan.
Universitas Gadjah Mada
2017-03-07
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/26946
10.22146/jfs.26946
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 19, No 1 (2017); 45-51
Jurnal Perikanan Universitas Gadjah Mada; Vol 19, No 1 (2017); 45-51
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/26946/19995
Copyright (c) 2017 Jurnal Perikanan Universitas Gadjah Mada
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/26968
2018-09-06T12:20:50Z
jfs:ART
The Community of Krustasean in Mangrove Area of Jangkaran Village Kulon Progo Regency
Komunitas Krustasea di Kawasan Mangrove Desa Jangkaran Kabupaten Kulon Progo
Amalia, Sholihat
Djumanto, Djumanto
Probosunu, Namastra
Congot; abundance; lagoon; shrimp; Yogyakarta
Congot, kelimpahan, laguna, udang, Yogyakarta
The objective of this study was to determine the diversity and abundance of krustaseans in the mangrove area of Jangkaran Village, Temon District, Kulon Progo Regency. Sampling was done bi-weekly from October 2016 to February 2017 on six stations defined by ecological character. Krustasean sampling was done using cest net, trap net and hand picking along the river with the extent of each collection station about 10 m2. The captured krustasean samples were cleaned, stored in ice-cooled boxes and transported to the laboratories to be identified and grouped according to species, then measured by carapace length and individual weight. Observation of aquatic environment was done by measuring temperature, brightness, water depth, current velocity, pH, salinity, dissolved oxygen, and substrate type. The results of the observation obtained 1 order, 7 families, and 26 species. The family krustaseans found were Coenobitidae, Diogenidae, Grapsidae, Ocypodidae, Palaemonoidae, Penaeidae, and Portunidae. The most dominant species of krustaseans were white shrimp (Penaeus merguiensis) as much as 25.06%, hermit crab (Clibanarius sp.) as much as 10.85%, and Uca annulipes as much as 10.59%. The fewest species of krustaseans found were Varuna yui of 0.13% and Ocypode sp. as much as 0.26%. The abundance value was 25.4 ind / m2, indices of diversity 2.60, richess index 0.87 and index of dominance 0.18.
Penelitian ini bertujuan untuk mengetahui keanekaragaman dan kemelimpahan krustasea di kawasan mangrove Desa Jangkaran Kecamatan Temon Kabupaten Kulon Progo. Sampling dilakukan setiap dua minggu sekali dari bulan Oktober 2016 sampai Februari 2017 pada enam stasiun yang ditetapkan berdasarkan karakter ekologis. Pengambilan sampel Krustasea dilakukan menggunakan jala tebar, pintur dan hand picking di sepanjang sungai dengan luasan tiap stasiun pengambilan sekitar 10 m2. Sampel krustasea yang tertangkap dibersihkan, disimpan dalam cool box yang diberi es dan dibawa kelaboratorium untuk diidentifikasi dan dikelompokkan sesuai dengan jenisnya, kemudian diukur panjang karapas dan berat individu. Pengamatan lingkungan perairan dilakukan dengan mengukur suhu, kecerahan, kedalaman perairan, kecepatan arus, pH, salinitas, oksigen terlarut, dan jenis substrat. Hasil pengamatan didapatkan 1 ordo, 7 famili, dan 26 spesies. Famili krustasea yang ditemukan yaitu Coenobitidae, Diogenidae, Grapsidae, Ocypodidae, Palaemonoidae, Penaeidae, dan Portunidae. Jenis Krustasea paling banyak ditemukan adalah udang putih (Penaeus merguiensis) sebanyak 25,06 %, kelomang (Clibanarius sp.) sebanyak 10,85%, dan Uca annulipes sebanyak 10,59%. Jenis krustasea yang paling sedikit ditemukan adalah Varuna Yui sebanyak 0,13% dan Ocypode sp. sebanyak 0,26%. Nilai kemelimpahan 25,4 ind/m2, indeks keanekaragaman 2,60, indeks kemerataan 0,87 dan indeks dominansi 0,18.
Universitas Gadjah Mada
Departemen Perikanan Universitas Gadjah Mada
2017-05-10
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/26968
10.22146/jfs.26968
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 19, No 2 (2017); 79-88
Jurnal Perikanan Universitas Gadjah Mada; Vol 19, No 2 (2017); 79-88
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/26968/20970
Copyright (c) 2017 Jurnal Perikanan Universitas Gadjah Mada
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/27819
2018-09-06T12:20:50Z
jfs:ART
Application of different Fresh Fish Handling Technique on the Quality of Raw Ingredients of Pindang Production
Penerapan Teknik Penanganan yang Berbeda terhadap Kualitas Ikan Segar sebagai Bahan Baku Pembuatan Ikan Pindang
I Gde Suranaya, Pandit
Raw material quality; pindang; fresh fish handling technique
Kualitas bahan baku ikan; pindang; teknik penanganan ikan segar
Histamine toxicity can be occurred after consumsing decomposing fish (pindang). The community (fishermen) perform different handling techniques on raw materials of pindang to slow down the decomposition process. This research is aimed to know the influence of various techniques of handling fish on the quality of raw materials of pindang. This research used completely randomized design with single factor. This study compared various methods of fish handling commonly used by community (fisherman in Kusamba village) to maintain the quality of raw materials of pindang, such as: kept on room temperature (technique A), add 1 kilogram crushed ice for 4 kilogram fishes (technique B), add 10% salt (technique C), and combination of technique B and C (ice and fish combination 1:8 plus 5% salt as technique D). Diversity analysis show a significant influence of different techniques of fish handling on the quality of raw material of pindang (p value <0.05). Addition of crushed ice show the best quality result among fish handling technique with histamine levels 11.30 mgN%, moisture content 74.53%, TVB 20.19 mgN%, salt 0.32%, bacteria 13 x 101 colonies / g, and negative coliform. Organoleptic assessment for B techniques also show the best result with visibility score 8.0 (bright, strong, and thin scale), eye 7.7 (convex, slightly foggy cornea, slightly faint pupil), odor 7.8 (soft odor), and texture 7.8 (elastic).
Keracunan histamine dapat terjadi setelah mengkonsumsi ikan pindang yang mengalami pembusukan. Masyarakat (nelayan) melakukan teknik penanganan yang berbeda-beda pada bahan baku pindang untuk memperlambat proses tersebut. Penelitian ini bertujuan untuk mengetahui pengaruh berbagai teknik penanganan ikan terhadap kualitas tongkol yang digunakan sebagai bahan baku ikan pindang. Penelitian ini menggunakan rancangan acak lengkap faktor tunggal. Perlakuan yang digunakan berupa berbagai metode penanganan ikan oleh nelayan Desa Kusamba, yaitu: didiamkan pada suhu kamar (A), penambahan 1 kilogram es untuk 4 kilogram ikan (1:4) (B), penambahan 10% garam (C), serta penggabungan 50% teknik B dan 50% teknik C yaitu kombinasi es dan ikan (1:8) ditambah 5% garam (D). Hasil analisis keragaman menunjukkan metode penanganan berpengaruh nyata (P<0,05) terhadap kualitas ikan. Penambahan bahwa hancuran es (teknik B) menunjukkan mutu ikan yang terbaik di antara teknik penangan lainnya dengan mutu kimiawi yaitu kadar histamin 11,30 mgN%, kadar air 74,53 %, kadar garam 0,32 % dan kadar TVB 20,90 mgN%, mutu mikrobiologi yaitu jumlah bakteri 13 x 101 koloni/g, jumlah coliform negatif, dan mutu organoleptik yaitu kenampakan 8,0; mata 7,7; bau 7,8; dan tektur 7,8.
Universitas Gadjah Mada
KEMENRISTEK DIKTI
KEMENRISTEKDIKTI
2017-05-13
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/27819
10.22146/jfs.27819
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 19, No 2 (2017); 89-96
Jurnal Perikanan Universitas Gadjah Mada; Vol 19, No 2 (2017); 89-96
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/27819/20971
Copyright (c) 2017 Jurnal Perikanan Universitas Gadjah Mada
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/28346
2018-09-06T12:20:50Z
jfs:ART
The Effect of Physical and Chemical Parameters on the Presence of Lompa Fish (Thryssa baelama Forsskål) in the Apui Coastal Waters of Central Maluku District
PENGARUH PARAMETER FISIKA DAN KIMIA TERHADAP KEHADIRAN IKAN LOMPA (Thryssa baelama Forsskål) DI PERAIRAN PANTAI APUI KABUPATEN MALUKU TENGAH
Mainassy, Meillisa Carlen
Lompa fish (Thryssa baelama Forsskål); apui coastal area; environmental water quality index
Ikan lompa (Thryssa baelama Forsskål); pantai apui; indeks mutu lingkungan perairan
Maluku is one of the archipelago province in Indonesia that has small pelagic fish resources with widespread distribution, such as lompa (Thryssa baelama Forsskål). One of lompa habitat in Mollucas is in Apui coastal areas. The presence of lompa depends on physical and chemical parameters in the waters. This study aims to determine the influence of physical and chemical parameters on the presence of lompa in Apui coastal area Central Mollucas. This study was conducted in June - July 2015. This research is ex-post facto using the value of Environmental Water Quality Index which refers to US-National Sanitation Foundation-Water Quality Index (NSF-WQI). Physical and chemical parameters measured include temperature, velocity, depth, brightness, salinity, pH and dissolved oxygen. The results of calculations with the Indeks Mutu Lingkungan Perairan (IMLP) are 95.61; 92,15; 88.61; 96,37; 93,76; 79.57. And the results of lompa fishing were 181, 162, 205, 173, 184, and 97 respectively. The research conclusion is that the Apui coastal areas are in good condition and potential as lompa habitat.
Maluku merupakan salah satu provinsi kepulauan di Indonesia yang memiliki sumberdaya ikan pelagis kecil dengan penyebaran luas seperti ikan lompa (Thryssa baelama Forsskål). Salah satu habitat ikan lompa di daerah Maluku yaitu perairan Pantai Apui. Kehadiran ikan lompa bergantung pada parameter fisika kimia suatu perairan. Penelitian ini bertujuan untuk menentukan pengaruh parameter fisika kimia terhadap kehadiran ikan lompa di perairan Pantai Apui Kabupaten Maluku Tengah. Penelitian ini telah dilaksanakan pada bulan Juni - Juli 2015. Penelitian ini bersifat ex post facto dengan menggunakan nilai Indeks Mutu Lingkungan Perairan (IMLP) yang mengacu pada metode US-National Sanitation Foundation-Water Quality Index (NSF-WQI). Parameter fisika kimia yang diukur meliputi suhu, kecepatan arus, kedalaman, kecerahan, salinitas, pH dan oksigen terlarut (dissolved oxygen). Hasil perhitungan dengan Indeks Mutu Lingkungan Perairan (IMLP) secara berturut-turut yaitu 95,61; 92,15; 88,61; 96,37; 93,76; 79,57. Sementara hasil penangkapan ikan lompa secara berturut-turut adalah 181, 162, 205, 173, 184, dan 97 ekor. Perairan Pantai Apui dalam kondisi baik dan berpotensi sebagai habitat ikan lompa.
Universitas Gadjah Mada
2017-08-09
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/28346
10.22146/jfs.28346
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 19, No 2 (2017); 61-66
Jurnal Perikanan Universitas Gadjah Mada; Vol 19, No 2 (2017); 61-66
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/28346/19999
Copyright (c) 2017 Jurnal Perikanan Universitas Gadjah Mada
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/28551
2018-09-06T12:20:50Z
jfs:ART
An Evidence of Complete-Pectoral Fin Loss as an Asymmetric Trait on African Catfish Clarias gariepinus Reared in Pond
Gejala Asimetris pada Lele Afrika Clarias gariepinus Tak Bersirip Pektoral Hasil Buidaya di Kolam
Farikhah, Farikhah
Sukoso, Sukoso
Yanuhar, U
Iranawati, F
Zainuddin, M
Fluctuating asymmetry (FA); Pectoral fin ray; asymmetric score; stress
Fluktuasi asimetri (FA); jari-jari sirip pektoral; skor asimetris; stress
The purpose of this study was to describe the asymmetric potential possessed by the pectoral fin organ Clarias gariepinus catfish originating from maintenance in aquaculture ponds. Individuals who do not grow a pair of pectoral fins are mated to a normal pectoral finned individual to obtain fish seed (F1). The study was conducted from January to April 2017 at the Reproductive Laboratory of Aquaculture Studies Program Department of Water Resources Management Faculty of Fisheries and Marine Science Universitas Brawijaya Malang. The observed variables are asymmetric score and Asymmetric Fluctuation Index (FA). The number of lefts and right pectoral fin radius, as well as abnormal F1 percentage, were analyzed. Long-weight relationship was analyzed by linear regression and PT/BB ratio. The conclusions using Mann Whitney-U Test (α = 0.01). The results showed that the population of F1 from the parent fish of the non-pectoral mortal differs very significantly with the controls on the asymmetry score variables (13.63±29.88), FA (1.25±2.05), the average number of pectoral left fins (8.95±3.22) - right fin (9.10±1.89), and the ratio of PT/BB (1.57±0.61) with a long-weighted relationship based on the equation y = 3.25x-2.04. Based on the results of this study it is concluded that the catfish Afrika Clarias gariepinus with perfect loss pectoral fin has the potency to generate asymmetrical characters to its generation and rising FA that is influenced by the hybridization or crosses.
Tujuan penelitian ini adalah untuk mendeskripsikan gejala asimetris pada lele Afrika Clarias gariepinus tidak bersirip pektoral yang berasal dari pemeliharaan dikolam budidaya. Individu yang tidak tumbuh sepasang sirip pektoral dikawinkan dengan individu bersirip pektoral normal untuk memperoleh benih ikan (F1). Penelitian dilakukan pada bulan Januari-April 2017 di Laboratorium Reproduksi Program Studi Budidaya Perikanan Jurusan Manajemen Sumber Daya Perairan Fakultas Perikanan dan Ilmu Kelautan Universitas Brawijaya Malang. Variabel yang diamati yaitu skor asimetris dan indeks fluktuasi asimetris (FA). Jumlah jari-jari sirip pektoral kiri dan kanan, serta persentase F1 abnormal dianalisis. Hubungan panjang-bobot dianalisis dengan regresi linier dan rasio PT/BB. Penarikan kesimpulan menggunakan Mann Whitney-U Test (α=0,01). Hasil penelitian menunjukkan bahwa populasi F1 dari induk ikan tak bersirip pektoral berbeda sangat nyata dengan kontrol pada variabel skor asimetri (13,63±29,88), FA (1,25±2,05), rerata jumlah sirip pektoral kiri (8,95±3,22) - kanan (9,10±1,89), dan rasio PT/BB (1,57±0,61) dengan hubungan panjang-bobot berdasarkan persamaan y= 3,25x-2,04. Berdasarkan hasil penelitian disimpulkan bahwa lele Afrika Clarias gariepinus tidak bersirip pektoral memiliki potensi untuk memunculkan karakter asimetris terhadap keturunannya dan meningkatkan indeks FA melalui hibridisasi.
Universitas Gadjah Mada
University of Muhammadiyah Gresik
2017-07-08
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/28551
10.22146/jfs.28551
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 19, No 2 (2017); 67-74
Jurnal Perikanan Universitas Gadjah Mada; Vol 19, No 2 (2017); 67-74
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/28551/20968
Copyright (c) 2017 Jurnal Perikanan Universitas Gadjah Mada
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/28790
2018-09-06T12:20:50Z
jfs:ART
Maturation of the Silver Pompano (Trachinotus blochii) Gonad by Hormon Human Chorionic Gonadotropin (hCG) and Pregnant Mare Serum Gonadotropin (PMSG)
Maturasi Gonad Bawal Bintang (Trachinotus blochii) dengan Induksi Hormon Human Chorionic Gonadotropin (hCG) dan Pregnant Mare Serum Gonadotropin (PMSG)
Putra, Wiwin Kusuma Atmaja
Hadrianto, Rian
Razai, Tengku Said
hCG; silver pompano fish; maturation; PMSG
hCG; bawal bintang; maturasi; PMSG
Human Chorionic Gonadotropin (hCG) and Pregnant Mare Serum Gonadotropin (PMSG) hormone is a product that contains the hormone Folicle Stimulating Hormone (FSH) and Litiunizing hormone (LH) that play a role in regulating the development gonad process of fish. This research determine to effect hCG and PMSG hormone induction and find out the best treatment in the induction on gonad maturation of Silver pompano fish. This research used three treatments: control (NaCl), hormone hCG 20 IU.kg-1 and PMSG 20 IU.kg-1 fish body weight. Containers used in the maintenance of fish in the form of Floating Net Cage (KJA) with size 3x3x3 m. The best research result is 20 IU PMSG treatment with GSI value equal to 0.6%, HSI equal to 1.25%, maturity level of gonad reaches TKG III and histologically progress reach secondary oocyte and primary oocyte. The conclusion of this research is hCG and PMSG hormone induction effect on gonad maturation Silver pompano fish for 4 weeks compared to control treatment. The best hormone treatment is PMSG hormone treatment with a dose of 20 IU. Kg-1 fish body weight.
Hormon human Chorionic Gonadotropin (hCG) dan hormon Pregnant Mare Serum Gonadotropin (PMSG) merupakan produk yang berisi Folicle Stimulating Hormone (FSH) dan Litiunizing Hormone (LH) yang berperan dalam pengaturan perkembangan gonad ikan. Penelitian ini bertujuan untuk mengetahui pengaruh induksi hormon hCG dan PMSG dan perlakuan yang terbaik dalam induksi maturasi gonad bawal bintang. Penelitian ini menggunakan tiga perlakuan: kontrol (NaCl), hormon hCG 20 IU.kg-1 dan PMSG 20 IU.kg-1 bobot tubuh ikan. Wadah yang digunakan dalam pemeliharaan ikan berupa karamba jaring apung (KJA) dengan ukuran 3 x 3 x 3 m. Hasil penelitian menunjukkan bahwa perlakuan 20 IU PMSG pada bawal bintang menghasilkan kematangan gonad terbaik dengan nilai GSI sebesar 0,6%, HSI sebesar 1.25%, tingkat kematangan gonad (TKG) III dan secara histologi terjadi perkembangan oosit sekunder dan primer. Kesimpulan penelitian ini adalah induksi hormon hCG dan PMSG berpengaruh terhadap maturasi gonad bawal bintang selama 4. Perlakuan hormon PMSG dengan dosis 20 IU. Kg-1 bobot tubuh ikan menghasilkan kematangan gonad terbaik.
Universitas Gadjah Mada
Balai Benih Ikan Pengujian Bintan Kepulauan Riau
Balai Benih Ikan Pengujian Bintan Kepulauan Riau
2017-05-13
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/28790
10.22146/jfs.28790
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 19, No 2 (2017); 75-78
Jurnal Perikanan Universitas Gadjah Mada; Vol 19, No 2 (2017); 75-78
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/28790/20969
Copyright (c) 2017 Jurnal Perikanan Universitas Gadjah Mada
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/29252
2019-03-15T02:36:17Z
jfs:ART
Wind-Driven Coastal Upwelling in the Southern Coast of Yogyakarta
Rachman, Faizal
Adharini, Ratih Ida
Setiawan, Riza Yuliratno
Puspita, Indun Dewi
Triyannanto, Endy
Chlorophyll-a bloom; Yogyakarta waters; coastal upwelling
Satellite measurement provides synoptic view of sea surface wind and can be used to study variability of coastal upwelling. Here we analyzed data of 12 years of satellite-derived sea surface wind, sea surface temperature (SST), and sea surface chlorophyll-a (Chl-a) to examine the spatial and temporal distributions of coastal upwelling off the Yogyakarta waters. Results show that upwelling occurs during the Southeast Monsoon (SEM) season. During this season, the Yogyakarta waters are dominated by strong wind speed (~7 m/s) and SST cooling (25 °C). Whereas during the Northwest Monsoon (NWM) season the low wind speed (<4 m/s) no longer favor upwelling and SST cooling. We suggest that as the Yogyakarta coastline is oriented east-west, northwesterly winds result in downwelling condition at the coast, while southeasterly winds lead to the offshore Ekman transport of surface water and subsequent upwelling.
Universitas Gadjah Mada
2018-05-27
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/29252
10.22146/jfs.29252
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 20, No 1 (2018); 13-17
Jurnal Perikanan Universitas Gadjah Mada; Vol 20, No 1 (2018); 13-17
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/29252/21263
Copyright (c) 2018 Jurnal Perikanan Universitas Gadjah Mada
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/31498
2019-03-15T02:36:17Z
jfs:ART
Diet and Feeding Habits of the Javelin Grunt Pomadasys kaakan (Cuvier, 1830) in Pabean Bay West Java
MAKANAN DAN KEBIASAAN MAKAN IKAN GEROT Pomadasys kaakan (CUVIER & VALENCIENNES,1830) DI TELUK PABEAN JAWA BARAT
Annisa, Chilmia Ayu
Raharjo, M Fadjar
Zahid, Ahmad
Simanjuntak, Charles P.H
Asriansyah, Aries
Aditriawan, Reiza M
Index relative importance; crustacivore; diet; pabean bay
Indeks relatif penting, krustasivora, makanan, teluk pabean
The Pabean Bay is an estuary area that inhabited by many fish species such as javelin grunt (Pomadasys kaakan Cuvier, 1830). The purposes of this study were to identify food item and determine the feeding habit of the javelin grunt in The Pabean Bay, West Java. Fishes were collected monthly from June to December 2016 using gill nets and trap nets. Observation food is in vitro by conducting an examination of the stomach and the intestines of an example and refer on the books of the identification by Carpenter and Niem. Analysis of fish diet includes index of relative importance, niche breadth, and niche overlap. Fishes were grouped into three groups based on the size length. The result showed that the javelin grunt was crustacivore. Generally, the diet of javelin grunt consists of Acetes sp., Penaeus sp., Portunus sp., Clupeid, Ambassid, Sciaenid, Gobiid, Sillaginid, and unidentified organisms. Penaeus sp. was the main food and could be found on each size of group in monthly observation. The proportion of index of relative importance value was changed in regard of length size groups of A (41-85 mm: 12.105), B (86-130 mm: 13.804), and C (131-175 mm: 7.561). The niche breadth of javelin fish was higher in the larger ones and a high diet overlap among size groups was found. According to prey item and feeding habit, the javelin grunt can be classified as benthic crustacean feeder.
Teluk Pabean merupakan daerah estuari yang memiliki potensi sumberdaya perikanan, yang salah satunya adalah ikan gerot. Penelitian dilakukan setiap bulan dari bulan Juni hingga Desember 2016 untuk mengidentifikasi jenis makanan dan menjelaskan kebiasaan makan ikan gerot, Pomadasys kaakan (Cuvier & Valenciennes, 1830) di Teluk Pabean, Jawa Barat. Ikan contoh dikumpulkan dengan jaring insang dan sero. Analisis makanannya menggunakan metode indeks relatif penting, luas relung makanan, dan tumpang tindih relung makanan. Hasil menunjukkan bahwa ikan ini merupakan ikan karnivora, namun lebih tepatnya krustasivora. Jenis makanannya dapat dibagi menjadi sembilan kelompok, yaitu Acetes sp., Penaeus sp., Portunus sp., Clupeidae, Ambassidae, Sciaenidae, Gobiidae, Sillaginidae, dan organisme tidak teridentifikasi. Makanan utamanya adalah jenis Penaeus sp. sama baik menurut waktu maupun ukuran ikan setiap bulan. Jenis makanan utamanya tidak berubah tetapi proporsinya berubah seiring bertambahnya ukuran panjang. Proporsi makanan utama jenis Penaeus sp. pada ukuran panjang 41-84 mm (96,17), 85-130 mm (95,64), dan 131-175 mm (88,15).Teluk Pabean merupakan daerah estuari yang memiliki potensi sumberdaya perikanan, yang salah satunya adalah ikan gerot. Penelitian dilakukan setiap bulan dari bulan Juni hingga Desember 2016 untuk mengidentifikasi jenis makanan dan menjelaskan kebiasaan makan ikan gerot, Pomadasys kaakan(Cuvier & Valenciennes, 1830) di Teluk Pabean, Jawa Barat. Ikan contoh dikumpulkan dengan jaring insang dan sero. Analisis makanannya menggunakan metode indeks relatif penting, luas relung makanan, dan tumpang tindih relung makanan.[s1] Hasil menunjukkan bahwa ikan ini merupakan ikan karnivora, namun lebih tepatnya krustasivora. Jenis makanannya dapat dibagi menjadi sembilan kelompok[s2] [s3] , yaitu Acetes sp., Penaeus sp., Portunus sp., Clupeidae, Ambassidae, Sciaenidae, Gobiidae, Sillaginidae, dan organisme tidak teridentifikasi. Makanan utamanya adalah jenis Penaeus sp. sama baik menurut waktu maupun ukuran ikan setiap bulan[s4] . Jenis makanan utamanya tidak berubah tetapi proporsinya berubah seiring bertambahnya ukuran panjang. Proporsi makanan utama jenis Penaeus sp. pada ukuran panjang 41-84 mm (96,17), 85-130 mm (95,64), dan 131-175 mm (88,15[s5] ). [s1]ubah menjadi kalimat pasif [s2] [s3]jenis? [s4]Maksudnya bagaimana? [s5]Kebiasaan makanannya seperti apa???
Universitas Gadjah Mada
2018-05-27
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/31498
10.22146/jfs.31498
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 20, No 1 (2018); 31-40
Jurnal Perikanan Universitas Gadjah Mada; Vol 20, No 1 (2018); 31-40
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/31498/21266
Copyright (c) 2018 Jurnal Perikanan Universitas Gadjah Mada
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/33310
2019-03-15T02:36:17Z
jfs:ART
Determination of Optimal Planting Distance between Seed Clump on Seaweed Verticulture Method
PENENTUAN JARAK TANAM OPTIMAL ANTAR RUMPUN BIBIT PADA METODE VERTIKULTUR RUMPUT LAUT
Pong-Masak, Petrus R
Sarira, Nelly H
Planting distance; seaweed; verticulture
Jarak tanam; rumput laut; vertikultur
Kappaphycus alvarezii cultivation by the verticulture method has been introduced since 2013. However, scientific studies on some technical aspects are still needed to improve the quality, quantity, and continuity of production and utilization of area in a maximum and productive manner. One of them is the planting distance between seed clumps. The purpose of this study was to determine the optimal planting distance between seed clumps on seaweed verticulture method. Seaweed was cultured using a 10x10 m2 floating raft containing 36 vertical nets of 5x2 m2/net. Seaweed seeds with an initial weight of 50 g were tied to a vertical net with a distance between knot on the verticulture net of 15 cm, 25 cm, and 35 cm. Seaweed cultivation was done for 3 cycles (1 cycle = 45 days) continuously in the cycle of planting season. The experimental units were prepared with Completely Randomized Design (RAL) with 3 replications. The results showed that daily growth rate (DGR) and carrageenan content of seaweed planted with a distance of 15 cm, 25 cm, and 35 cm between clumps were not significantly different (P>0.05). However, it is recommended to apply 25 cm distance between seed clumps in the verticulture method.
Budidaya rumput laut Kappaphycus alvarezii dengan metode vertikultur telah diperkenalkan oleh LP2BRL sejak tahun 2013 sampai sekarang ini. Walaupun demikian masih diperlukan kajian ilmiah dalam aspek teknis lainnya untuk dapat meningkatkan kualitas, kuantitas, dan kontinuitas produksi serta pemanfaatan lahan secara maksimal dan produktif. Satu di antaranya adalah perbedaan jarak tanam antar rumpun bibit rumput laut. Tujuan penelitian ini adalah menentukan jarak tanam optimal antara rumpun bibit pada metode vertikultur rumput laut. Konstruksi budidaya menggunakan rakit apung ukuran 10x10 m2 yang memuat 36 jaring vertikultur berukuran 5x2 m2/jaring. Tiap jaring dibuat simpul sebagai tempat tali cincin diikat secara bolak balik atau dua sisi. Bibit rumput laut dengan bobot awal 50 g diikat pada jaring vertikultur dengan jarak antar simpul pada jaring vertikultur yaitu 15 cm, 25 cm, dan 35 cm. Budidaya rumput laut dilakukan selama 3 kali siklus (1 siklus = 45 hari) dan dilakukan secara berkesinambungan dalam siklus musim tanam. Unit-unit percobaan disusun dengan Rancangan Acak Lengkap (RAL) dengan 3 kali ulangan. Hasil penelitian menunjukkan bahwa laju pertumbuhan harian (LPH) dan kandungan karaginan rumput laut yang ditanam dengan jarak 15 cm, 25 cm, dan 35 cm antar rumpun tidak berbeda nyata (P>0,05). Namun disarankan untuk penerapan jarak 25 cm antar rumpun bibit untuk optimalisasi produksi pada metode vertikultur.
Universitas Gadjah Mada
DIPA APBN KKP 2016
DIPA APBN KKP 2016
2018-05-27
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/33310
10.22146/jfs.33310
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 20, No 1 (2018); 23-30
Jurnal Perikanan Universitas Gadjah Mada; Vol 20, No 1 (2018); 23-30
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/33310/21265
https://jurnal.ugm.ac.id/jfs/article/downloadSuppFile/33310/3889
Copyright (c) 2018 Jurnal Perikanan Universitas Gadjah Mada
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/34067
2019-03-15T03:25:32Z
jfs:ART
Rehabilitation of Mangrove Ecosystem Through Community-Based Project and the Current Economic Value: A Case Study of Rehabilitation Project in Lubuk Kertang Village, Langkat Regency, North Sumatera
Dinda, Natasha
Suadi, Suadi
Sahubawa, Latif
economic valuation; Lubuk Kertang; mangrove ecosystem
Mangrove ecosystem plays an important role for socio-economic and environmental services. However, the rapid expansion of agricultural and industrial plantation activities challenged the sustainability of such ecosystem in Lubuk Kertang Village. This research aims to describe the potential of community-based to rehabilitate the degraded mangrove ecosystem and the economic benefit of such project for Lubuk Kertang villagers. The research was conducted using census methods for all respondents, including fishermen, handicraft makers, tourists, and the manager of the eco-tourism activity. The study showed that the successful of community on replanting the mangrove on mangrove ecosystem led by various factors, including the high willingness of community to participate on rehabilitation project, clear physical boundaries and rule enforcement, effective monitoring system and better conflict resolution mechanism. The total economic value in the mangrove area is Rp 1.057.343.654/year, comprising of Rp 601.077.437/year direct use value, Rp 395.786.267/year indirect value, Rp 22.279.950/year option use value, and Rp 38.200.000 existence value. The society based mangrove management has preserved the benefit potential value of not to endanger the change of mangrove ecosystem.
Universitas Gadjah Mada
2018-12-22
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/34067
10.22146/jfs.34067
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 20, No 2 (2018); 71-78
Jurnal Perikanan Universitas Gadjah Mada; Vol 20, No 2 (2018); 71-78
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/34067/23623
Copyright (c) 2018 Jurnal Perikanan Universitas Gadjah Mada
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/34103
2019-10-22T06:17:43Z
jfs:ART
Toxicity Test for Evaluating Food Safety of New Edible Seaweeds, Enteromorpha sp. and Laurencia sp.
Toxicity Test for Evaluating Food Safety of New Edible Seaweeds, Enteromorpha sp. and Laurencia sp.
Isnansetyo, Alim
Istiqomah, Indah
Widaningroem, Retno
Triyanto, Triyanto
Safia, Rina Anggraeni
Yosita, Riesa
Helmiati, Senny
Brine shrimp lethality test; Enteromorpha sp.; food safety; Laurencia sp.; toxicity test
Brine shrimp lethality test; Enteromorpha sp.; food safety; Laurencia sp.; toxicity test
Seaweeds are potential foodstuff and source of bioactive substances that are very useful in the food and pharmaceutical industries. The objective of this study was to evaluate toxicity of aqueous extracts of seaweeds by Brine shrimp lethality test (BLT) and cytotoxicity test. The seaweeds used in this study were Enteromorpha sp. and Laurencia sp. collected from the Gunungkidul coastal line. The cytotoxicity test was performed against a normal cells line of Vero cells and a cancer cells line of HeLa cells. The cells lines were cultured in M119 medium with addition of 10% FBS and incubated at 37°C in CO2 incubator until confluent. Cells were harvested and cultured in 96 microplate with an initial density of 2x104 cells / 100 ml / well. The cells lines were treated with seaweed extracts at 24 hours after incubation. After additional 24 h incubation, the cell proliferation was observed by MTT method (3- [4,5-dimethylthiazol-2-yl] -2,5- diphenyltetrazolium bromide.The results showed that the two aqueous extract were not toxic in the BLT test, and did not exhibited any cytotoxicity activity against HeLa and Vero cells lines. Concentration-dependent cell proliferation was also not found. This results indicated that Enteromorpha sp. and Laurencia sp. extracts were no cytotoxic and might be consumed safely. These overall results suggested that the two seaweeds might be developed to be a new foodstuff for humans.
Seaweeds are potential foodstuff and source of bioactive substances that are very useful in the food and pharmaceutical industries. The objective of this study was to evaluate toxicity of aqueous extracts of seaweeds by Brine shrimp lethality test (BLT) and cytotoxicity test. The seaweeds used in this study were Enteromorpha sp. and Laurencia sp. collected from the Gunungkidul coastal line. The cytotoxicity test was performed against a normal cells line of Vero cells and a cancer cells line of HeLa cells. The cells lines were cultured in M119 medium with addition of 10% FBS and incubated at 37°C in CO2 incubator until confluent. Cells were harvested and cultured in 96 microplate with an initial density of 2x104 cells / 100 ml / well. The cells lines were treated with seaweed extracts at 24 hours after incubation. After additional 24 h incubation, the cell proliferation was observed by MTT method (3- [4,5 dimethylthiazol-2-yl] -2,5- diphenyltetrazolium bromide.The results showed that the two aqueous extract were not toxic in the BLT test, and did not exhibited any cytotoxicity activity against HeLa and Vero cells lines. Concentration-dependent cell proliferation was also not found. This results indicated that Enteromorpha sp. and Laurencia sp. extracts were not cytotoxic and might be consumed safely. These overall results suggested that the two seaweeds might be developed to be a new foodstuff for humans.
Universitas Gadjah Mada
Faculty Agriculture Universitas Gadjah Mada
Fakultas Pertanian Universitas Gadjah Mada
2019-08-02
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Brine shrimp lethality test (BLT) and cytotoxicity test
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/34103
10.22146/jfs.34103
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 21, No 1 (2019); 31-34
Jurnal Perikanan Universitas Gadjah Mada; Vol 21, No 1 (2019); 31-34
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/34103/25059
https://jurnal.ugm.ac.id/jfs/article/downloadSuppFile/34103/4125
Copyright (c) 2019 Jurnal Perikanan Universitas Gadjah Mada
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/34207
2019-03-15T02:36:17Z
jfs:ART
Application of Probiotic and Fermented Feed in the Nursery of Anguilla bicolor
Soeprijanto, Agoes
Guntur, Guntur
Fakhri, Muhammad
Survival rate; fermented feed; probiotic; nursery; feed conversion ratio; Anguilla bicolor
The main problem in Anguilla bicolor nursery is the low productivity and survival rate (SR) caused by poor water quality and low digestibility of feed. The purpose of this study was to evaluate the application of probiotic and fermented feed on A. bicolor nursery from stadia elver to fingerling. In this study, one treatment of probiotic and fermented feed and one control without supplementation of probiotic and fermented feed were applied. Probiotic of 5 mL/m3 for every three days and fermented feed with protein of 42% were administered for 4 months. The results showed that survival rate of 93% and specific growth rate of 2.82%/day were obtained in the treatment of probiotic and fermented feed while survival rate of 81% and specific growth rate of 2.76% were produced in control tank. Feed conversion ratio and total production in treatment tank were 1.8 and 18.01 kg, respectively. On the other hand, feed conversion ratio and total production in control tank were 2.3 and 14.68 kg, respectively. It can be concluded that probiotic and fermented feed application were able to improve the productivity of A. bicolor.
Universitas Gadjah Mada
2018-05-27
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/34207
10.22146/jfs.34207
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 20, No 1 (2018); 19-22
Jurnal Perikanan Universitas Gadjah Mada; Vol 20, No 1 (2018); 19-22
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/34207/21264
Copyright (c) 2018 Jurnal Perikanan Universitas Gadjah Mada
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/34494
2019-03-15T03:25:32Z
jfs:ART
Preferences of Giant Gouramy (Osphronemus gouramy, Lac, 1801.), Walking Catfish (Clarias sp.) and Red Nile (Oreochromis sp.) on Natural Feed in Fish Culture
Nafila, Dea
Rustadi, Rustadi
Djumanto, Djumanto
Plankton; preferenc; giant gouramy; walking catfish; red nile
The aim of this study was to determine the preference for plankton as natural feed by giant gourami, walking catfish, and red nile on intensive aquaculture system. The study was designed using Completely Randomized Design (RAL), with two replications. Each fish was kept in six concrete tanks with dimension 2x2x1 m³ and 60 cm water level. Water source were from wells. Commercial pellet feed was given in three times daily ad libitum. Water samples were filtered and two individual fish were collected for plankton samples from pond water and alimentary canal, respectively, every two week, simultaneously with water quality measurements. Plankton samples were preserved using 5% formaldehyde and was observed under a compound light microscope with 100x magnification. The amount of plankton in the alimentary canal was converted to volume. Data were analyzed descriptively. The result showed that the volume contents proportion of plankton in the alimentary canal was less than 1%. The volume of plankton proportion in the alimentary canal of red nile were found the most than other fish. Each fish had the same preference of plankton of Lepocinclis and Scenedesmus, but different from other species of plankton. The plankton that utilized by giant gouramy were Crucigenia, Diadesmis and Navicula, whereas walking catfish was Pediastrum, and red nile was Microcystis. The plankton that preferred by giant gouramy were Crucigenia, Oscillatoria, Splirullina, and Synedra, walking catfish was Navicula, while red nile were Chrysamoeba and Tintinnidium.
Universitas Gadjah Mada
2018-12-22
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/34494
10.22146/jfs.34494
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 20, No 2 (2018); 63-70
Jurnal Perikanan Universitas Gadjah Mada; Vol 20, No 2 (2018); 63-70
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/34494/23624
Copyright (c) 2018 Jurnal Perikanan Universitas Gadjah Mada
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/35546
2019-03-15T03:25:32Z
jfs:ART
The Capability of Cinnamon as an Off-Flavor Masking Agent for Spirulina platensis enriched Food Product
Fitriya, Wahdan
Alfionita, Khusnul
food processing technology; fish processing technology; food processing; fish processing; sensory analysis; QDA
Cookies; flakes; dried noodles; fortification; spirulina; cinnamon; off-flavor; QDA
The purpose of this research was to know the effectiveness and the description of aroma of cookies, flakes, and dried noodles fortified with biomass of Spirulina platensis microalgae and cinnamon powder. Fortification was done to increase the nutritional value while the addition of cinnamon powder was done as an aroma masking ingredient to reduce off-flavor of the product. The observations included hedonic test using 60 panelists to find out the best concentration of cinnamon powder additions favored by panelists, followed by quantitative descriptive analysis (QDA) using trained panelists to know the aroma description of the product. The cinnamon powder added to each product was 2.5; 5; 7.5; and 10%. The results showed the concentration of cinnamon for cookies, flakes, and spirulina drieds noodles were 10; 2.5; and 2.5 %, respectively. The selected product was then tested by QDA and generated respectively 13; 12; and 10 perceptions of aroma, while dominant perceptions emerging were cinnamon-like, sunflower seed-like, sand ginger-like, and caramel-like.
Universitas Gadjah Mada
Directorate of Research, Universitas Gadjah Mada
2018-12-22
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
quantitative descriptive analysis; QDA; sensory analysis
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/35546
10.22146/jfs.35546
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 20, No 2 (2018); 95-102
Jurnal Perikanan Universitas Gadjah Mada; Vol 20, No 2 (2018); 95-102
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/35546/23625
Copyright (c) 2018 Jurnal Perikanan Universitas Gadjah Mada
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/35551
2019-03-15T03:25:32Z
jfs:ART
The 16S and COI Mitochondrial DNA Nucleotide Composition of Stripped Snakehead (Channa striata Bloch,1793) from Lake Sentani, Jayapura, Papua
Kombong, Christine Bawaeda Sitandung
Arisuryanti, Tuty
Biologi;Genetika hewan
16S mtDNA; COI mtDNA; stripped snakehead; genetic charcterization; nucleotide composition
Stripped snakehead (Channa striata Bloch,1793) has potency to be developed in Indonesia due to high nutritional value including omega 3 which is useful for children growth. However, study on composition of mitochondrial DNA nucleotide as a part of study on genetic characterization of stripped snakehead fish in Indonesia is poorlyunderstood. Genetic characterization of stripped snakehead is important to obtain data information that can be applied for breeding and conservation program. Therefore, the objective of this study was to determine the 16S and COI mitochondrial DNA nucleotide of stripped snakehead collected from Lake Sentani, Jayapura, Papua. Method used in this research is PCR method using primer 16Sar and 16Sbr for 16S mitochondrial gene, and FishF2 and FishR2 for COI mitochondrial gene. The results showed that composition of 16S mtDNA nucleotide from 616 bp was T=21.92%, C=25.49%, A=30.19%, dan G=22.40%, whereas composition of A+T=52.11% and G+C=47.89%. In addition, composition of COI mtDNA nucleotide from 705 bp was T=29.93%, C=28.65%, A=24.26%, and G=17.16% while composition of A+T=54.48% and G+C=45.52%. Data of 16S and COI mitochondrial DNA nucleotide composition of the stripped snakehead collected from Lake Sentani gained in this study are to be expected to complete genetic information of the fish species which is useful to improve breeding program of this fish species in the future.
Universitas Gadjah Mada
Laboratorium Genetika dan Pemuliaan Fakultas Biologi UGM
Kepala Laboratorium Genetika dan Pemuliaan Fakultas Biologi UGM
Lukman Hakim S.Si, Fakultas Biologi UGM
2018-11-22
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
metode PCR dan sekuensing
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/35551
10.22146/jfs.35551
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 20, No 2 (2018); 57-62
Jurnal Perikanan Universitas Gadjah Mada; Vol 20, No 2 (2018); 57-62
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/35551/23622
Copyright (c) 2018 Jurnal Perikanan Universitas Gadjah Mada
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/35663
2019-03-15T02:36:17Z
jfs:ART
The Application of Response Surface Methodology (RSM) on the Optimization of Catfish Bone Calcium Extraction
Ratnawati, Susana Endah
Ekantari, Nurfitri
Pradipta, Rizky Wana
Paramita, B L
Fisheries- Fisheries Products Processing Technology
HCl; calcium; NaOH; Response Surface Methodology; catfish bone
This study was designed to determine the optimum conditions on catfish bone calcium extraction through Response Surface Methodology (RSM) which used factorial design and 13 treatments. Tests were used to know the influence of independent variables (solvents concentrations and treatment time) on the calcium content of bone flour. As a result, linear models were used as response prediction. Maximum response was obtained by calcium extraction using 5% NaOH during 30 minutes or 11.64% HCl within 58 minutes. It is shown that calcium content were 15.74-17.46% with more than 87.5% accuracy level. Calcium extraction using 5% NaOH during 30 minutes produced flour which has Ca/P ratio 3:1, maximum yield and whiteness level. Low protein and moisture content might result in the long shelf life of catfish bone flour.
Universitas Gadjah Mada
Fisheries Department, Faculty of Agriculture, Universitas Gadjah Mada
2018-06-22
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Experimental Laboratories
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/35663
10.22146/jfs.35663
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 20, No 1 (2018); 41-48
Jurnal Perikanan Universitas Gadjah Mada; Vol 20, No 1 (2018); 41-48
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/35663/21267
Copyright (c) 2018 Jurnal Perikanan Universitas Gadjah Mada
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/36109
2019-03-15T03:25:32Z
jfs:ART
Seaweed Selection to Supply Superior Seeds for Cultivation
Sarira, Nelly Hidayanti
Pong-Masak, Petrus Rani
Perikanan
Superior seed; cultivation; Kappaphycus alvarezii; seaweed; selection
Seaweed Kappaphycus alvarezii is a pre-eminent commodity in the field of marine and fisheries Indonesia which has been widely cultivated in coastal waters. Currently, the main problem faced by the cultivators is the limited stock of seeds, both in terms of quality and quantity. Selection is one method that is expected to increase the rate of seaweed growth quickly, cheap, easy, bulk, and sustainable.This study aims to determine the effect of selection on the growth of seaweed so that it can be done superior seed production for cultivation purposes. Seaweed cultivation was done in Kulu Village, Wori District, North Minahasa Regency, North Sulawesi by using long line method in April-June 2015. Selection is based on the daily growth rate parameter (DGR) and the selection method refers to the selection protocol that has been developed on K. alvarezii seaweed. Results showed that DGR of selection seedlings were higher (P <0.05) compared to controls, in which DGR of selection reached 5.87%/day, while DGR of control was 1.89%/day. From three seed production cycles (G-1 - G-3), the average DGR resulted from the selection was 5.53%/day and control 2.19%/day. Carrageenan content of selection result is relatively higher (47.66%) than control (31.28%) with mean for three cycle (G-1 - G-3) that is 43.55% for selection and 33.20% for control. Water quality (temperature, salinity, nitrate, phosphate) during the study is still within the appropriate range for seaweed growth. Therefore it is concluded that with the application of the method of seaweed selection can increase the daily growth rate and carrageenan content of seaweed K. alvarezii which directly affects the increase of production both in quantity and quality.
Universitas Gadjah Mada
Kementerian Kelautan dan Perikanan
2018-12-22
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/36109
10.22146/jfs.36109
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 20, No 2 (2018); 79-85
Jurnal Perikanan Universitas Gadjah Mada; Vol 20, No 2 (2018); 79-85
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/36109/23626
https://jurnal.ugm.ac.id/jfs/article/downloadSuppFile/36109/4743
https://jurnal.ugm.ac.id/jfs/article/downloadSuppFile/36109/4744
Copyright (c) 2018 Jurnal Perikanan Universitas Gadjah Mada
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/36151
2019-03-15T03:25:32Z
jfs:ART
Distribution and Composition of Lobster Species Caught in Java Sea of East Java, Indonesia
Setyanto, Arief
Rachman, Nabilla Artini
Yulianto, Eko Sulkhani
Fisheries
composition; distribution; East Java; lobster; Java Sea
Lobster resources are abundant in Indonesia waters. Lobster’s catch production is known as an important fishery commodity. A lobster fishery is considered important fisheries within the Indonesia fishe ies management zone. So that, its management plan is needed to be developed. As a consequence, preliminary study on lobster distribution by its species proportion or composition in their catches by its fishing ground and fishing season (month) are important to mitigate the resources. The study was conducted in Java Sea of East Java to explore the lobster species distribution and composition. The Java Sea is laid within the Fisheries Management Zone of the Republic of Indonesia number 712. Lobster catch data were collected from 4 regions (landing bases) across East Java. They are Lamongan, Bawean, Tuban and Sumenep. The data was collected from December 2016 - March 2017. These regions are representing over all biogeography of marine ecology of East Java. Statistical test for homogeneity of composition/proportion of species of lobster by its regions or location and time/month were analyzed and tested statistically using one way Analysis of Variance (ANOVA). The results shows that the composition o lobster species in each regions or location in different time/month are different. There were our species o lobster identified. They are Panulirus ornatus, P. homarus, P. polyphagus, and P. Versicolor. P. ornatus found in those four locations. All 4 species are caught in Lamongan. there are no species of P. Homarus have been caught in Bawean. In Tuban there is 3 species of Panulirus ornatus, P. polyphagus, and P. homarus. While in Sumenep there are only two species which are P. ornatus and P. Versicolor. Panulirus polyphagus is dominant in Lamongan, Bawean, and Sumenep while P. homarus is in Tuban. Those four species were caught in the month of December, January, February and March with P. Polyphagus as a dominant catch.
Universitas Gadjah Mada
Dept. of Fisheries Resources Utilization and Marine Science, University of Brawijaya
2018-12-22
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
proportion analysis
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/36151
10.22146/jfs.36151
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 20, No 2 (2018); 49-55
Jurnal Perikanan Universitas Gadjah Mada; Vol 20, No 2 (2018); 49-55
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/36151/23621
Copyright (c) 2018 Jurnal Perikanan Universitas Gadjah Mada
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/36520
2020-07-16T15:41:13Z
jfs:FRM
Persepsi Pembudidaya Udang dalam Pengembangan Usaha Tambak Berkelanjutan di Pantai Selatan Daerah Istimewa Yogyakarta dan Jawa Tengah
Iman Tohari, Perbawa Agung
Suadi, Suadi
Subejo, Subejo
Ilmu Perikanan
Berkelanjutan, budidaya, DIY, Jawa Tengah, persepsi, tambak, udang
Perkembangan teknologi budidaya dan permintaan pasar udang yang meningkat terus mendorong ekspansi budidaya udang termasuk di lahan berpasir atau lahah marjinal di Pantai Selatan Yogyakarta (DIY) dan Jawa Tenggah (Jateng). Budidaya udang ini di satu sisi memberikan kontribusi positif bagi perekonomian masyarakat pesisir dan negara, di sisi lain menghasilkan eksternalitas negatif terhadap lingkungan karena pengelolaan yang kurang bertanggungjawab. Penelitian ini bertujuan untuk mengetahui persepsi pembudidaya udang tentang pola budidaya udang yang berkelanjutan dan sikap serta tindakan mereka dalam pengelolaan usaha budidaya udang secara berkelanjutan di DIY dan Jateng. Penelitian dilakukan di lokasi terpilih, yaitu: (1) Pantai Pandansimo, Desa Poncosari, Kecamatan Sanden, Kabupaten Bantul; (2) Pantai Pasir Kadilangu, Desa Jangkaran, Kecamatan Temon, Kabupaten Kulon Progo; dan (3) Pantai Keburuhan, Desa Keburuhan, Kecamatan Ngombol, Kabupaten Purworejo, dengan total responden 80 pembudidaya udang. Persepsi diukur dengan Skala Likert yang meliputi empat dimensi budidaya udang berkelanjutan, yang meliputi 5 (lima) aspek: teknis (7 sub-indikator), ekonomi (9 sub-indikator), lingkungan (7 sub-indikator), dan sosial (6 sub-indikator) serta kelembagaan (5 sub-indikator). Hasil penelitian menunjukkan bahwa aspek ekonomi secara akumulatif memiliki nilai tertinggi (0,73), sebaliknya aspek kelembagaan dan lingkungan dengan nilai terendah, yaitu masing-masing 0,64 dan 0,67. Hasil ini menunjukkan bahwa perhatian utama usaha ini masih pada aspek ekonomi, sedangkan aspek lingkungan dan kelembagaan masih belum menjadi prioritas. Karena itu, pemahaman terhadap praktek budidaya udang berkelanjutan masih perlu ditingkatkan.
Universitas Gadjah Mada
2020-06-30
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Survei
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/36520
10.22146/jfs.36520
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 22, No 1 (2020); 55-61
Jurnal Perikanan Universitas Gadjah Mada; Vol 22, No 1 (2020); 55-61
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/36520/28199
Copyright (c) 2020 Jurnal Perikanan Universitas Gadjah Mada
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/37454
2019-10-22T06:17:43Z
jfs:ART
Turbinaria conoides Extract Increases the Storability of Red Nile Fillet at Cold Temperatures
Husni, Amir
Sahubawa, Latif
Perdana, Imam Arda
Fish processing technology
Shelf life; fillet; red tilapia; Turbinaria conoides
The aim of the research was to assess the effect of Turbinaria conoides extract as a natural antibacterial agents on shelf life of red tilapia fillet at low temperature. The fresh red tilapia fillet soaked with a Turbinaria conoides extract solution for 30 minutes at various concentration of 0.0%; 0.5%: 1.0%; 1.5% and 2.0%, than stored at low temperature (4°C) for 12 days with four days interval observation, repeteadly. The parameter observed wereTotal Plate Count (TPC), Total Volatile Base (TVB), pH and scoring. The result showed that Turbinaria conoides extract able to maintain shelf life of red tilapia fillet at low temperature up to 12 days based on the content of TPC and TVB. Turbinaria conoides extract can maintain the score of appearance and texture of red tilapia up to 8 days. The treatment 1.5% of Turbinaria conoides extract was the best treatment in maintaining shelf life of red tilapia fillet at low temperature based on the parameters of TPC, TVB, appearance and texture.
Universitas Gadjah Mada
2019-08-02
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Experimental
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/37454
10.22146/jfs.37454
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 21, No 1 (2019); 1-7
Jurnal Perikanan Universitas Gadjah Mada; Vol 21, No 1 (2019); 1-7
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/37454/25053
Copyright (c) 2019 Jurnal Perikanan Universitas Gadjah Mada
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/37965
2019-10-22T06:17:43Z
jfs:ART
Biosorption Cr(VI) using Biofilm Streamer
Kurniawan, Andi
Aquatic Microbiology; Aquatic Ecology; Aquatic Biotechnology
Biosorption; Cr(VI); heavy metal; biofilm; streamer biofilm; water contamination
Water contamination is one of the main environmental problem presently. One of the contaminants that become serious problem in aquatic ecosystems is Cr(VI) which is toxic for living organisms. Therefore, technology to solve this problem is urgent. Biosorption is one of the alternative technologies that inexpensive and environmentally friendly. The present study analyzed the biosorption of Cr(VI) using streamer biofilm. Biofilm is a predominant habitat for most microbes in aquatic ecosystems. The sample of biofilms used in this study was streamer biofilm collected from the river. The results show that the streamer biofilm had ability to adsorb Cr(VI). The adsorption of Cr(VI) are fitted well to the Langmuir adsorption isotherm model. The maximum adsorbed amount of Cr(VI) is estimated to be around 8.33 mg/g and the adsorption equilibrium constant is around 0.02 L/mg. The results of the present study indicate that the streamer biofilm is a promising alternative biosorbent for the biosorption of water pollutant such as Cr(VI).
Universitas Gadjah Mada
Direktorat Riset dan Pengabdian Masyarakat Direktorat Jenderal Penguatan Riset dan Pengembangan Kementerian Riset, Teknologi, dan Pendidikan Tinggi
2019-08-02
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
biosorpsi; kinetik adsorspi; adsorpsi isoterm
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/37965
10.22146/jfs.37965
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 21, No 1 (2019); 35-39
Jurnal Perikanan Universitas Gadjah Mada; Vol 21, No 1 (2019); 35-39
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/37965/25060
Copyright (c) 2019 Jurnal Perikanan Universitas Gadjah Mada
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/38026
2019-03-15T03:25:32Z
jfs:ART
Vulnerability Analysis of Sea Level Rise In The Southern Coast of Bawean Island
Hidayah, Zainul
Romadhon, Agus
Witjarnoko, Yudha
marine science;coastal management
Bawean; vulnerability; sea level rise
Bawean island is one of numerous small islands in East Java. This island is famous for its natural resources and high level of environmental services. However in the last few years, effects of sea level rises on the island have been reported. Objective of this research was to identify and determine parameters that have significant impact on the vulnerability of the island due to sea level rise events. This research was conducted from July untill September 2017. The method used for this study was a combination of spatial analysis using remote sensing and Geographical Information System (GIS), field survey and interviews with local people. Vulnerability assesment was conducted for three parameters, namely Exposure, Sensitivity and Adaptive Capacity. The results showed that the vulnerability index in the southern part of the island is 3.381. It can be classified as low vulnerability.
Universitas Gadjah Mada
Trunojoyo University of Madura
2018-12-22
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
survey, sistem informasi geografis
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/38026
10.22146/jfs.38026
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 20, No 2 (2018); 87-94
Jurnal Perikanan Universitas Gadjah Mada; Vol 20, No 2 (2018); 87-94
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/38026/23627
Copyright (c) 2018 Jurnal Perikanan Universitas Gadjah Mada
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/38750
2019-10-22T06:17:43Z
jfs:ART
Utilization of Water-Soluble Chitosan as Antiseptic Hand Sanitizer
Chamidah, Anies
Widiyanti, Christina Nur
Fabiyani, Nahda Nur
fisheries product technology, marine drug
Hand sanitizer; water-soluble chitosan; in vitro; in vivo
Shrimp wastes produced by manufacturers are mostly limited to be utilized by small industries. They only can turn the waste into chips and shrimp pastes even though it can be used as chitosan. The scarcity of shrimp waste utilized as chitosan is often constrained due to the lack of chitosan dissolve in water caused by the length of the molecular chain. In order to optimize the chitosan utilization, depolymerization is used; such as using H2O2. Chitosan depolymerization enables chitosan to be water soluble and has a high antibacterial ability, which can be applied as an antiseptic of hand sanitizer which has been derived from synthetic materials. The used method is an experimental method which includes the processing of making water-soluble chitosan with test parameters of deacetylation, solubility, moisture content, and yield. Furthermore, the manufacture of hand sanitizers is carried out in vitro and in vivo. The results showed that water-soluble chitosan can be made at 13% H2O2 concentration at 40°C with deacetylation degree 94.21%, 90% solubility, 10.60% moisture content and 3.5% yield. Moreover, after becoming a hand sanitizer, it was able to inhibit Escherichia coli and Staphylococcus epidermidis bacteria at concentrations of 120 mg/ml, respectively 19.53 mm and 21.12 mm, which were relatively strong. Resulted in MIC values 0.28% and 0.27%, and MBC values 1.12% and 1.08%, and also without causing irritation or edema on mouse skin.
Universitas Gadjah Mada
University of Brawijaya, faculty of Fisheries and marine science, Departement of fisheries product technology
2019-08-02
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
depolymerization
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/38750
10.22146/jfs.38750
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 21, No 1 (2019); 9-16
Jurnal Perikanan Universitas Gadjah Mada; Vol 21, No 1 (2019); 9-16
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/38750/25055
https://jurnal.ugm.ac.id/jfs/article/downloadSuppFile/38750/5760
https://jurnal.ugm.ac.id/jfs/article/downloadSuppFile/38750/5761
Copyright (c) 2019 Jurnal Perikanan Universitas Gadjah Mada
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/38868
2019-03-15T03:25:32Z
jfs:ART
The Effect of Chitosan in Feed on Growth, Survival Rate and Feed Utilization Efficiency of Nile Tilapia (Oreochromis niloticus)
Rozi, Rozi
Mukti, Akhmad Taufiq
Samara, Syifania Hanifah
Santanumurti, Muhammad Browijoyo
Tilapia; chitosan; growth; blood profile
Chitosan is a functional polysaccharide that is capable of inducing various biological activities. This research aims to examine the effect of chitosan on growth and blood profile of tilapia fish. The method used in this research was experimental methods with completely randomized design (RAL) consisting of 4 treatments and 3 times. 120 Tilapia fish in 5-7 cm in range size were reared in aquarium at density of 10 fish/aquarium. Feedwere given at the additional dose of 10 ppt, 50 ppt, and 100 ppt chitosan. The observed variables were growth rate, survival rate, fish blood profile, water quality, feed utilization efficien . The results showed that the best chitosan treatment was at a dose of 100 ppt which produced FCR of 3.48 ± 2.25, AGP: 0.13 ± 0.03, SGR: 0.85 ± 0.84 and EPP: 28.70 ± 16,54.
Universitas Gadjah Mada
2018-12-22
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/38868
10.22146/jfs.38868
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 20, No 2 (2018); 103-111
Jurnal Perikanan Universitas Gadjah Mada; Vol 20, No 2 (2018); 103-111
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/38868/23628
Copyright (c) 2018 Jurnal Perikanan Universitas Gadjah Mada
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/39525
2020-02-11T06:38:03Z
jfs:AQa
Isolation of Cellulolytic Bacterium Staphylococcus sp. JC20 from the Intestine of Octopus (Octopus sp.) for Fish Probiotic Candidate
Istiqomah, Indah
Isnansetyo, Alim
Atitus, Imelda Novita
Rohman, Ahmad Fauzi
Fisheries
Bacteria; cellulolytic; probiotics candidate; screening; identification; Staphylococcus sp.
Aim of this study was to isolate, characterize, and identify cellulolytic bacteria from the digestive tract of marine vertebrates and invertebrates as a candidate of fish probiotics. The bacteria were isolated from the digestive tract and grown on a cellulose agar plate. The bacteria were screened based on the cellulolytic activity, acid resistance, antagonist activity against fish pathogens, antibiotics sensitivity, ability to live in fish digestive tract and non-pathogenic test. Selected bacterium was identified molecularly, based on the 16S rDNA gene sequences, and phenotipically. A total of 14 bacteria demonstrated celulolitic index of 1.1-1.8. The bacteria with cellulolytic index of > 1.6 were screened by the selection criteria, resulted a selected strain, JC20 isolate which was isolated from the digestive tract of octopus (Octopus sp.). The selected bacterium was sensitive to antibiotics, resists to acidic environment, able to live in the fish digestive tract, and non-pathogen. Thus, the bacterium was potential for further characterization as fish probiotics candidate. Molecular and phenotypic identification revealed that JC20 isolate was Staphylococcus sp.
Universitas Gadjah Mada
Penelitian ini didukung oleh Program Hibah Penelitian Dosen Fakultas Pertanian, Universitas Gadjah Mada Tahun 2017.
2019-12-30
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/39525
10.22146/jfs.39525
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 21, No 2 (2019); 93-98
Jurnal Perikanan Universitas Gadjah Mada; Vol 21, No 2 (2019); 93-98
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/39525/26661
Copyright (c) 2019 Jurnal Perikanan Universitas Gadjah Mada
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/39724
2019-10-22T06:17:43Z
jfs:ART
Characteristics of Thermal Front in the Tropical Waters of Eastern Indian Ocean
Daulay, Soni Rohima
Sari, Tengku Ersti Yulika
Usman, Usman
Jhonnerie, Romie
Fishing Technology
Aqua MODIS; Samudera Hindia; single edge detection image (SIED); sea surface temperature; thermal front
This study aims to elucidate spatio-temporal variability of the thermal front in the eastern tropical Indian Ocean of the western Sumatera. The research was conducted during November 2017- February 2018. The Single Image Edge Detection (SIED) was applied to daily sea surface temperature (SST) data of 2016 of the level-3 Aqua Moderate Resolution Imaging Spectroradiometer (MODIS) for the detection of thermal front. The number of the thermal front events during 2016 were 167 days. The distribution and frequency of thermal front mostly found in January, i.e. 23 days with SST mean of 30.3ºC. Whereas the lowest distribution appeared in November and the lowest frequency observed in September, i.e. 6 days with the SST mean of 29.1ºC. The highest temperature range of thermal front is between 31.4-32.0ºC and the lowest ranged between 26.4-29.3ºC. The occurrences of thermal front were commonly found in the open ocean. The highest frequency occurred in January and the lowest took place in September with the longest duration of 3 days.
Universitas Gadjah Mada
LPPM-P Universitas Riau
2019-08-02
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Spatial Analysist
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/39724
10.22146/jfs.39724
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 21, No 1 (2019); 25-29
Jurnal Perikanan Universitas Gadjah Mada; Vol 21, No 1 (2019); 25-29
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/39724/25057
Copyright (c) 2019 Jurnal Perikanan Universitas Gadjah Mada
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/39920
2019-10-22T06:17:43Z
jfs:ART
Isolation, Characterization and Pathogenicity of Edwardsiella tarda a Causative Disease on Freshwater Fish in Yogyakarta
Murwantoko, Murwantoko
Diniarti, Eka
Triyanto, Triyanto
Aquaculture; Fish Disease
Edwardsiella tarda; LD50; catfish; Pangasius; tilapia
Edwarsiella tarda is a cosmopolitan bacterium and is a cause of Edwardsiellosis in various fish species. The bacterial infection causes large losses on aquaculture in Asia, especially Japan. This study was conducted to isolate and characterize E. tarda as causative disease in freshwater fishes, and to determine its pathogenicity to catfish (Pangasius sp.). Bacteria were isolated from kidney of diseased fishes on Tryptone Soya Agar medium. Identification was conducted based on morphological colonies, morphological cells and biochemical tests. Fulfillment of Koch Postulates was done by injecting bacteria intraperitoneally on 7-9 cm fishes at dose of 107 cfu/fish. Pathogenicity test was carried out by intraperitoneal injection at 104, 105, 106, and 107 cfu/fish to 7-9 cm-catfish (Pangasius sp.) and followed by observation of disease signs and mortality every six hours for 7 days. Pathogenicity was determined as Lethal Dosage (LD50) using Dragstedt Behrens method. In this research we have isolated three isolates E. tarda causing disease in fishes. The clinical signs of this disease were lose of pigmentation over the lession, swollen of stomach, haemorhage on fins , small cutaneous lesions, and necrotic on fins area. The LD50 of E. tarda isolate L2, L3, and N3 were 4.64 ± 0.35x105, 1.54 ± 0.07x105, and 1.13 ± 0.13x106 cfu/fish, respectively.
Universitas Gadjah Mada
Hibah Fakultas Pertanian Universitas Gadjah Mada
2019-08-02
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Postulat koch
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/39920
10.22146/jfs.39920
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 21, No 1 (2019); 41-45
Jurnal Perikanan Universitas Gadjah Mada; Vol 21, No 1 (2019); 41-45
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/39920/25061
Copyright (c) 2019 Jurnal Perikanan Universitas Gadjah Mada
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/41194
2020-07-16T15:41:13Z
jfs:FRM
Salt Supply Chain Management at Regional Level: Case Study of Salt Processing Industry and Salt Consumer Industry in Central Java
Purnanto, Siwi Hadi
Suadi, Suadi
Ustadi, Ustadi
fisheries, Fisheries Agribusiness
Salt; Central Java; SCOR model; supply chain
The need of salt for industry in Central Java Province is still largely supplied by salt products from other provinces, even though Central Java is one of the major salt-producing provinces in Indonesia. This studyanalyzed supply chain models of salt in selected industry in Central Java.. The study was conducted through case study on two selected industrial groups: (1) the salt processing industry, represented by two salt processing companies and (2) the salt user industry, represented also by two salt users (food and non-food industry), in Central Java. Indepth interview was applied to collect data, included the data on the flow of goods, flow of finances, and flow of information patern. The data was used to finalize the structure and model of salt supply chain in Central Java. The data were analyzed using descriptive qualitative analysis, which refers to SCOR (Supply Chain Operations Reference) model dimension. The study showed that the salt processing industry supplied majorly by out-region supplier, counted for 30 – 70% of raw salt material needed.. The salt processing industry with large storage tended to keep large amount of salt as investment (buffer stock). In addition, industry with smaller storage capacity attempted to enhance the stok utility and accelerated cash-to-cash conversion for the available salt. The salt supply chain model on the processing industry possessed good reliability. In addition, the fish processing and textile industry merely made purchase to local area suppliers. The textile industry applied a collaborative management and took leadership role in the collaborative supply chain to secure the salt supply continuity.
Universitas Gadjah Mada
2020-06-30
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
in-depth interview, The data were analyzed using descriptive qualitative analysis
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/41194
10.22146/jfs.41194
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 22, No 1 (2020); 63-70
Jurnal Perikanan Universitas Gadjah Mada; Vol 22, No 1 (2020); 63-70
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/41194/28200
Copyright (c) 2020 Jurnal Perikanan Universitas Gadjah Mada
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/42017
2020-02-11T06:38:03Z
jfs:FPr
Shelf Life of Tilapia (Oreochromis niloticus) Dumplings with addition of Bagasse Liquid Smoke during Storage at Chilling Temperature (±5°C)
Handayani, Eka
Swastawati, Fronthea
Rianingsih, Laras
Bagasse liquid smoke; shelf life; tilapia; chilling; Fish Dumplings; Temperature Storage
Tilapia (Oreochromis niloticus) can be used to process fish dumplings. Tilapia dumplings are susceptible to microbiological quality deterioration so that the shelf life is low. The liquid smoke of bagasse contains phenol, acid, and carbonyl that can be used as natural preservatives to extend the shelf life of fish dumplings. The aim of this study was to determine the effect of adding bagasse liquid smoke to the quality and shelf life of tilapia dumplings by treating the concentration of liquid smoke stored in chilling temperatures (±5°C). The material used tilapia and bagasse liquid smoke. The experimental method used split-plot in time 2 factors, differences concentration of liquid smoke (0% and 2.5%) and storage time (0, 5, 10, 15, 20 days) with 3 repetitions. The testing parameters of fish dumplings are a sensory test, total phenol, TPC, TVBN, and pH. Non-parametric data were analyzed using Kruskal-Wallis and Mann-Whitney for further test. Parametric data were analyzed using ANOVA and BNJ for further test. The result shows that tilapia dumplings without the addition of liquid smoke rejected on the 10th day with a sensory value 5.63±0.47; total phenol 102.04±0.00; TPC 5.2×104±0.01CFU/g; and pH 7.42±0.08 while according TVBN value rejected on the 5th day with 15.13±0.64 mg/100g. Tilapia dumplings with addition of 2,5% liquid smoke rejected on the 15th day with an sensory value 5.87±0.45; total phenol 116.85±0.01; TPC 5.4×104±0.01CFU/g; TVBN 18.82±0.84 mg/100g and pH 7.33±0.10. Bagasse liquid smoke can increase the shelf life of tilapia dumplings up to 10 days during chilling storage.
Universitas Gadjah Mada
2019-12-30
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/42017
10.22146/jfs.42017
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 21, No 2 (2019); 111-118
Jurnal Perikanan Universitas Gadjah Mada; Vol 21, No 2 (2019); 111-118
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/42017/26664
Copyright (c) 2019 Jurnal Perikanan Universitas Gadjah Mada
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/42648
2020-02-11T06:38:03Z
jfs:FPr
Characteristics of Dry Noodles with the Addition of Different Fish Scales
Fadilla, Evi Nur
Darmanto, Yudhomenggolo Sastro
Purnamayanti, Lukita
Gelatin, characteristics; dry noodles; fish scales; tensile strength
Noodles is an easy-to-serve food product and widely consumed. The weakness of the noodle is in its hard texture, less elastic and easily broken, so it requires the addition of gelling agent for texture improvement. Gelatin is a gelling agent that can be extracted from fish scales. The addition of gelatin from scales of fish that were caught from different habitat (fresh, brackish, and sea) might affects the characteristics of the dried noodles. This study aimed to determine the effect of gelatin prepared from the scales of tilapia, milkfish and sulphur goatfish on the characteristics of dry noodles.The research method was experimental laboratories using a Completely Randomized Design (RAL) with one factor which was gelatin from the difference fish scales (tilapia, milkfish, and sulphur goatfish). The parameters that were observed include protein content, tensile strength, water content, and hedonic analysis (appearance, smell, taste, and texture). The results show that the addition of tilapia, milkfish and sulphur goatfish scales gelatin significantly affected protein levels, tensile strength, moisture content and hedonic analysis of dried noodles. Dry noodles with the addition of gelatin scales of sulphur goatfish were not significantly different from milkfish gelatin, meanwhile dry noodles with the addition of tilapia scales gelatin shows a significant different from the control. Hedonic scores on a scale of 1 to 5 for dry noodles with fish scales gelatin and controls resulted to the appearance, aroma, taste, and texture values which were favored by panelists. These results indicate that the addition of fish scales gelatin produces characteristics of dry noodles that are suitable for consumption according to SNI 8217.2015.
Universitas Gadjah Mada
2019-12-30
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/42648
10.22146/jfs.42648
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 21, No 2 (2019); 119-126
Jurnal Perikanan Universitas Gadjah Mada; Vol 21, No 2 (2019); 119-126
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/42648/26665
Copyright (c) 2019 Jurnal Perikanan Universitas Gadjah Mada
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/42739
2019-10-22T06:17:43Z
jfs:ART
The Effect of Gelatin from Different Fish Skin on Physical and Sensory Characteristics of Marsmallow
Aziza, Izmy Nur
Darmanto, Yudhomenggolo Sastro
Kurniasih, Retno Ayu
Elasticity; gelatin; fish skin; gel strength; marshmallow
Gelatin is one type of protein obtained from partial hydrolysis of natural collagen. Utilization of gelatin has been widely applied to food, especially in foods related to elastic texture, for example marshmallow. The purpose of this research was to determine the quality of various types of gelatin based on gel strength, elsticity, water content, hedonic and to know the best marshmallow. The experimental design was complete randomized design. The treatment was different fish skin gelatin, namely patin, payus, and cobia with concentration of 7.39%. The parameters consisted of gelatin tests (yield, gel strength, viscosity) and marshmallow tests (gel strength, elasticity, water content and hedonic). Parametric data were analyzed with Analysis of Varience test and continued with Honestly Significant Difference test. The results showed that the use of different skin had significantly different (P<0.05) on yield, gel strength and viscosity, with the result of patin (13.24%, 280.56 bloom, 2.05 cP), payus (15.47%, 328 bloom, 3.18 cP), cobia 17.88%, 392.24 bloom, 5.63, respectively. The use of gelatin from payus and cobia had significantly different (P<0.05) to marshmallow characteristic. Marshmallow with gelatin skin of cobia fish had gel strength 1564.19 g.cm, elasticity 95.16 mm, water content 14.41% and hedonic test with interval of of 7.52 < μ < 7.91 which was means liked by panelists.
Universitas Gadjah Mada
2019-08-02
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/42739
10.22146/jfs.42739
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 21, No 1 (2019); 17-23
Jurnal Perikanan Universitas Gadjah Mada; Vol 21, No 1 (2019); 17-23
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/42739/25056
Copyright (c) 2019 Jurnal Perikanan Universitas Gadjah Mada
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/43699
2019-10-22T06:17:43Z
jfs:ART
Seahorse Hydrolisate (Hippocampus kuda) and Anti-Inflammatory Activity Test with Protein Denaturation Inhibition Method
Nasution, Nur Azizah
Nurilmala, Mala
Abdullah, Asadatun
Anti-inflammatory; hydrolyzate; hydrolysis; seahorses; amino acid
Seahorse is marine biota that have commercial value and used as ornamental fish and traditional medicinal ingredients. Utilization of seahorses has still not been extensively studied, especially in the form of hydrolysates. Hydrolysates of seahorses are known to have efficacy in biological activity. This study was conducted to identify seahorse morphometrics, determine selected enzymes based on the degree of hydrolysis and determine the anti-inflammatory activity of hydrolysates. The results showed that morphometric identification showed morphological characteristics of Hippocampus kuda, namely the number of body rings 12 units, tail ring 35 units, eye protrusion and cheeks as much as 1 unit, average head length of 3.5 cm, number of body rings on dorsal fin 3 units. The best degree of hydrolysis of seahorses is protein hydrolysis using alkalase enzyme of 42.49%. The highest anti-inflammatory activity on sea horse hydrolyzate has %inhibition of 42.88%.
Universitas Gadjah Mada
2019-06-07
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/43699
10.22146/jfs.43699
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 21, No 1 (2019); 47-51
Jurnal Perikanan Universitas Gadjah Mada; Vol 21, No 1 (2019); 47-51
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/43699/25914
Copyright (c) 2019 Jurnal Perikanan Universitas Gadjah Mada
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/43746
2020-07-16T15:41:13Z
jfs:FPr
Partial Characterization of Chitosanase from Bacillus cereus Strain BFE5400 Isolated from Snakehead Fish Intestine
Lestari, Shanti Dwita
Baehaki, Ace
Guttifera, Guttifera
fisheries, microbial enzyme
Bacillus cereus; chitosanase; snakehead fish; intestine
Feeding pattern of wild snakehead fish (Channa striata) which includes shrimp and small crustaceans makes it is intestine a good source of chitinase and chitosanase enzymes. This study aimed to isolate chitosanase producing bacteria from snakehead fish intestine, to select isolate with highest chitosanolytic activity, to produce chitosanase using the selected isolate and partially characterize the resulting enzyme. I2 isolate exhibited the highest chitosanolytic index with the value of 1.5 and produced enzyme with an activity of 0.00331 U/mL after 72 hours incubation. The ultimate bacterial density was at the 24th hour with a turbidity value of 0.5315. The enzyme activity was optimum at pH 6, with a value of 0.00816 U/mL, while the optimum temperature was 70°C with the enzyme activity of 0.00785 U/mL. Genetic identification of I2 isolate using 16S rRNA showed that the isolate has a high similarity to Bacillus cereus strain BFE 5400.
Universitas Gadjah Mada
Sriwijaya University
2020-06-30
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
original research
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/43746
10.22146/jfs.43746
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 22, No 1 (2020); 71-75
Jurnal Perikanan Universitas Gadjah Mada; Vol 22, No 1 (2020); 71-75
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/43746/28201
https://jurnal.ugm.ac.id/jfs/article/downloadSuppFile/43746/7323
Copyright (c) 2020 Jurnal Perikanan Universitas Gadjah Mada
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/44210
2020-02-11T06:38:03Z
jfs:FRM
An Integrated Supply Chain Management Based Nila Nirwarna (Oreochromis niloticus) Seed Market Institution
Nurhayati, Atikah
Yustiati, Ayi
Herawati, Titin
Social economic of fisheries
Institusion,Nila Nirwarna Fish, Purwakarta, Supply Chain
West Java Province is one of the potential areas of freshwater fisheries resources development in Purwakarta District. The utilization of development resources is directed to achieve comparative advantage and competitive advantage as an effort to encourage the growth of regional economy. Purwakarta is one area that has the potential of the aquaculture potential to be developed. One type of aquaculture that has a high economic potential such as tilapia nirwarna fish (Oreochromis niloticus), but in the institutional aspects of marketing there are still constraints from producers to consumers. This research aims to analyze marketing institutional of Nila seed (Oreochromis niloticus) through Integrated Supply Chain Management approach. The type of data used in this research is primary and secondary data. The analytical tool used marketing channels and supply chain risk by testing the validity and reliability of data. The technique of taking respondents using snowball sampling with the number of respondents 30 consisting of suppliers of nirwarna tilapia fish breeders to nirwarna tilapia seed cultivators. Based on the results of the research concluded that the analysis of tilapia supply chain risk has a value of 1.0 means it has a high risk. Based on the research results of the aquaculture business in Purwakarta is divided into two types of business, namely the enlargement effort and fish hatchery business. The marketing institutional of tilapia nirwarna seeds through Integrated Supply Chain Management approach in Purwakarta district through hilirization of tilapia fishery through the stage of input production supply and downstream of tilapia fishery fishery through fish farm institution through production and distribution output stage.
Universitas Gadjah Mada
Faculty of Fisheries and Marine Science, Universitas Padjadjaran
2019-12-30
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Supply Chain Management of Fisheries
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/44210
10.22146/jfs.44210
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 21, No 2 (2019); 65-72
Jurnal Perikanan Universitas Gadjah Mada; Vol 21, No 2 (2019); 65-72
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/44210/26656
https://jurnal.ugm.ac.id/jfs/article/downloadSuppFile/44210/7457
Copyright (c) 2019 Jurnal Perikanan Universitas Gadjah Mada
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/44821
2020-02-11T06:38:03Z
jfs:AQa
Effects of Twin-Screw Extruders Condition to Physical Properties of Floating Fish Feed
Hakim, Arif Rahman
Handoyo, Wahyu Tri
Novianto, Toni Dwi
Prasetyo, Andrianto Widi
Twin screw extruders; floating fish feed; physical properties
Process production of floating fish feed in a society constrained by processing technology. The objective of this study was to observe effect of condition process of twin screw extruders to the physical and chemical properties of produced of floating fish feed. Ingredients used involve fish meal, soybean meal, corn meal, and tapioca flour. The ingredients are mixed with 15, 20 and 25% water added to the total weight. Extrusion process condition conducted by several treatments i.e screw speed (540, 540, 600, 660 rpm) and barrel temperatures (80, 90, 100, 110, 120℃). In order to study, expansion ratio, unit density, floatability and hardness of feed were observed as physical parameters while chemical properties include moisture and protein content. Experimental result showed that addition 25 % water to the formula gives a good performance of expansion ratio, unit density and floatability than 15% and 20% moisture content. Higher of screw speed produces feed with higher ratio expansion, lower unit density, and higher floatability. The optimum of screw speed is 600 rpm. Meanwhile increasing of barrel temperature caused reduction of unit density, and escalation floatability of feed. Best barrel temperature to meet the physical properties is 120℃. The produced feed contain protein 32.38-41.95% and moisture content 4.37-5.70%.
Universitas Gadjah Mada
2019-12-30
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/44821
10.22146/jfs.44821
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 21, No 2 (2019); 79-84
Jurnal Perikanan Universitas Gadjah Mada; Vol 21, No 2 (2019); 79-84
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/44821/26658
Copyright (c) 2019 Jurnal Perikanan Universitas Gadjah Mada
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/45859
2020-02-11T06:38:03Z
jfs:FPr
Determination of Optimal Fermentation Condition for N-acetylglucosamine Production Using Mucor circinelloides Extracellular Chitinase
Halim, Yuniwaty
Hardoko, Hardoko
Pengalila, Reinald Febryanto
Teknologi Pangan
Shrimp shells; chitinase; chitin; Mucor circinelloides; N-acetylglucosamine
This research aimed to determine the best fermentation condition, consists of pH, temperature, fermentation time and substrate concentration, in N-acetylglucosamine production from shrimp shells using crude extracellular chitinase obtained from Mucor circinelloides mould. The method used was experimental method with fermentation treatment of different pH (5, 6, 7, 8 and 9) and temperature (30, 40, 50, 60, 70 and 80°C). The optimal pH and temperature of fermentation obtained was used to determine the maximum substrate concentration (0.5, 1, 1.5 and 2%) and fermentation time (2, 4, 6 and 24 hours) to produce the highest concentration of N-acetylglucosamine. The optimal pH for fermentation was 8, with chitinase activity of 4.38±0.06 U/ml, while the optimal temperature was 50°C with enzyme activity of 5.42±0.06 U/ml. Substrate concentration and fermentation time affected the N-acetylglucosamine production. The optimal fermentation condition was obtained with substrate concentration of 1.5% and fermentation time of 2 hours resulted to N-acetyl Glucosamine concentration of 2195.83±15.14 ppm.
Universitas Gadjah Mada
Lembaga Penelitian dan Pengabdian Masyarakat (LPPM), Universitas Pelita Harapan
2019-12-30
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/45859
10.22146/jfs.45859
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 21, No 2 (2019); 105-110
Jurnal Perikanan Universitas Gadjah Mada; Vol 21, No 2 (2019); 105-110
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/45859/26663
Copyright (c) 2019 Jurnal Perikanan Universitas Gadjah Mada
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/45871
2020-02-11T06:38:03Z
jfs:FRM
Microplastic Abundances in the Sediment of Coastal Beaches in Badung, Bali
Mauludy, Maghfira Shafazamilla
Yunanto, Agung
Yona, Defri
Marine Pollution
Fiber; film; fragment; microplastic; coastal beach
The use of plastic material has increased significantly because of its durability and resistance from degradation. Plastic wastes could degrade into smaller size known as microplastics. The purposes of this study are to analyze and to compare total abundance of microplastic among coastal beaches in Badung, Bali. This study was conducted at five different coastal beaches which are Doublesix Beach, Kuta Beach, Melasti Beach, Mengiat Beach, and Tanjung Benoa Beach. Microplastic abundance was found in the average of 90.7±59.1 particles kg-1. There are three types of microplastic found in this study; film, fiber, and fragment and the abundances were varied among beaches. Fiber dominated all the study areas in the average of 42.8±24.1 particle kg-1. Kuta Beach has the highest amount of microplastic compared to the other beaches with the average of 148.9±103.8 particles kg-1. It might be due to Kuta Beach is the very famous beach visited by many tourists in the Bali Island. Moreover, this study was conducted during monsoon season that has been know to bring plastic wastes to Kuta Beach.
Universitas Gadjah Mada
Balai Riset dan Observasi Laut (BROL) Bali
2019-12-30
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/45871
10.22146/jfs.45871
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 21, No 2 (2019); 73-78
Jurnal Perikanan Universitas Gadjah Mada; Vol 21, No 2 (2019); 73-78
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/45871/26657
Copyright (c) 2019 Jurnal Perikanan Universitas Gadjah Mada
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/45886
2020-02-11T06:38:03Z
jfs:FPr
Production of N-acetylglucosamine from Semi Purified Chitinase of Mucor circinelloides that Immobilized by using Agar
Soedirga, Lucia Crysanthy
Hardoko, Hardoko
Widianto, Natasha Vania
teknologi pangan; bioteknologi pengolahan
Agar; immobilization; chitin; chitinase; N-acetylglucosamine; black tiger shrimp
Hydrolysis of chitin into N-acetylglucosamine (NAG) can be done enzymatically by using chitinase enzyme that obtained from the fermentation with chitinolytic molds. Mucor circinelloides is one example of chitinolytic mold that can produce semi purified chitinase enzyme during the fermentation of chitin from black tiger shrimp (Penaeus monodon) shell. The semi purified chitinase enzyme that obtained in this research will be immobilized into the agar polymer to the extent of its stability during NAG production. This research was aimed to investigated the best concentration of agar (3,4,5, and 6%) and the best amount of added enzyme (0.2; 0.4; 0.6; 0.8; and 1 mL) toward the production of NAG. The result showed 0.6 ml of semi purified chitinase that immobilized into 3% of agar can produced NAG within the concentration 1111.667 ppm. Moreover, this enzyme considerably stable before and after immobilization within the value of 4.78 U/mL.
Universitas Gadjah Mada
Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Pelita Harapan (LPPM-UPH)
2019-12-30
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
ekspreimental
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/45886
10.22146/jfs.45886
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 21, No 2 (2019); 99-104
Jurnal Perikanan Universitas Gadjah Mada; Vol 21, No 2 (2019); 99-104
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/45886/26662
Copyright (c) 2019 Jurnal Perikanan Universitas Gadjah Mada
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/47635
2020-02-11T06:38:03Z
jfs:AQa
Effectivity of Probiotic Bacteria in Feed on Growth and Survival Rate of Common Carp (Cyprinus carpio)
Tarigan, Nurbety
Meiyasa, Firat
Common carp; growth rate; survival rate; probiotics
The aim of this study was to examine the effectiveness of the commercial bacterial probiotic addition in feed on growth and survival rate of common carp. This research was conducted from July to September 2018. This study used a completely randomized design (CRD) with four treatments and three replications. The initial body length of juveniles was 5-6 cm with density 1 juvenile/litersfor 42 days. In this research, we used different dosages of commercial probiotics 0, 5, 10 and 15 ml/kg. The results showed that the administration of those probiotics in the feed had a significant effect on the relative growth rate, survival rate, efficiency of feed utilization, and protein efficiency ratio on carp juvenile. Administration of probiotics at 15 ml/kg is the best treatment for a relative growth rate 2.96%, survival rate 100%, efficiency of food utilization 72.07%, and protein efficiency ratio 12.19%. In conclusions, probiotics mixed in feed are able to increase the digestibility of feed so that it supports the growth and survival rate of common carp.
Universitas Gadjah Mada
Universitas Kristen Wira Wacana
2019-12-30
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/47635
10.22146/jfs.47635
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 21, No 2 (2019); 85-92
Jurnal Perikanan Universitas Gadjah Mada; Vol 21, No 2 (2019); 85-92
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/47635/26659
Copyright (c) 2019 Jurnal Perikanan Universitas Gadjah Mada
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/47655
2020-12-30T08:22:42Z
jfs:FRM
Struktur Komunitas Ikan di Hilir Sungai Cimanuk Provinsi Jawa Barat pada Musim Penghujan
Herawati, Titin
Sidik, Rajib Abdul Rahman
Sahidin, Asep
Herawati, Heti
Manajemen Sumberdaya Perikanan
Hilir sungai cimanuk; keanekaragaman; kualitas air; musim penghujan; struktur komunitas
Sungai Cimanuk merupakan sungai kedua terbesar yang ada di Provinsi Jawa Barat setelah Sungai Citarum. Hulu Sungai Cimanuk berada di Gunung Papandayan, Kabupaten Garut, dan bermuara ke Laut Jawa di Kabupaten Indramayu. Riset ini bertujuan untuk mengungkap struktur komunitas ikan yang hidup di hilir Sungai Cimanuk pada musim penghujan bulan Desember 2018 hingga Februari 2019. Riset ini menggunakan metode observasi lapangan dan teknik pengambilan sampel secara sensus di empat stasiun pada koordinat antara 6°39’38,01’’LS 107°13’52,33’’BT sampai 6°16’25,26’’LS 108°14’5,17’’BT. Pengambilan sampel dilakukan satu bulan sekali. Parameter yang diamati yaitu kelimpahan, keanekaragaman, dominansi, keseragaman, struktur komunitas dan kualitas air. Ikan yang dikumpulkan selama riset berjumlah 347 ekor ikan yang menunjukan bahwa struktur komunitas ikan pada setiap stasiun berbeda. Jenis ikan yang teridentifikasi selama riset sebanyak 26 spesies dari 19 famili. Struktur komunitas ikan di stasiun I dan II tertekan, keanekaragaman sedang, dominansi rendah dan keseragaman rendah. Struktur komunitas ikan di stasiun III tertekan, keanekaragaman rendah, dominansi tinggi, dan keseragaman rendah. Struktur komunitas ikan di stasiun IV labil dengan keanekaragaman sedang, dominansi rendah, dan keseragaman sedang. Kualitas air tiap stasiun yang memenuhi persyaratan baku mutu lingkungan. Struktur komunitas ikan di hilir Sungai Cimanuk berbeda dari labil sampai tertekan, dipengaruhi oleh kualitas air dan kondisi sungai.
Universitas Gadjah Mada
Faculty of Fisheries and Marine Science
2020-12-30
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/47655
10.22146/jfs.47655
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 22, No 2 (2020); 113-122
Jurnal Perikanan Universitas Gadjah Mada; Vol 22, No 2 (2020); 113-122
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/47655/30251
Copyright (c) 2020 Jurnal Perikanan Universitas Gadjah Mada
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/47791
2020-07-16T15:41:13Z
jfs:AQa
The Discovery of Vibrio harveyi on Litopenaeus vannamei Infected White Feces Disease in Situbondo, East Java
Sumini, Sumini
Kusdarwati, Rahayu
Aquaculture - Fish Diseases
API 20NE; Litopenaeus vannamei; PCR, Biochemical Test; Vibrio harveyi; WFD
This research was conducted to discover Vibrio harveyi infected vannamei shrimp with White Feces Disease (WFD) in Situbondo, East Java Province. This research was conducted in November 2017 until September 2018. All Vibrio isolates from shrimp infected WFD were identified with biochemical tests, Analytical Profile Index/ API 20NE (BioMeriuex), and PCR with specific primers for V. harveyi. Additional parameters were the water quality, plankton brackishwater pond abundance, and antibiotic resistance test. Result showed that from 17 bacterial isolates identified, 10 isolates were V. harveyi (58.82%), three isolates were V. alginolyticus (17.65%), one V. fluvialis isolate (5.88%), one V. parahaemolyticus isolate (5.88%), and two non Vibrio isolates which were identified as Shewanella putrefaciens (11.76%). All isolates of V. harveyi also showed resistance activity on more than one antibiotic. Poor water quality had been identified as abnormal result of pH, alkalinity, salinity, ammonia levels and total organic matter level. Plankton abundance observation showed that Chloropyceae, Diatom, and Dinoflagellata dominated all sampled brackishwater ponds. This research concluded that V. harveyi were discovered on vannamei shrimp with poor water quality and plankton abundance in the pond samples.
Universitas Gadjah Mada
Indenpendent Funding
2020-06-30
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Survey, Research
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/47791
10.22146/jfs.47791
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 22, No 1 (2020); 9-17
Jurnal Perikanan Universitas Gadjah Mada; Vol 22, No 1 (2020); 9-17
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/47791/28195
Copyright (c) 2020 Jurnal Perikanan Universitas Gadjah Mada
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/47799
2020-12-30T08:22:43Z
jfs:AQa
Budidaya Rumput Laut Gelidium sp. menggunakan Kantong pada Metode Long Line dan Lepas Dasar
Muslimin, Muslimin
Sarira, Nelly Hidayanti
Akuakultur
Budidaya; Gelidium; kantong; lepas dasar; long line
Tujuan penelitian ini adalah untuk mengetahui pertumbuhan rumput laut Gelidium sp. yang dibudidayakan dengan kantong pada dua metode berbeda yaitu long line dan lepas dasar.Rancangan percobaan yang digunakan yaitu Rancangan Acak Lengkap (RAL) yang terdiri dari dua metode (long line dan lepas dasar) dan dua perlakuan yaitu : 1. Uji coba bobot awal rumput laut (bobot bibit 10 g, 20 g, 30 g, 40 g, 50 g, 75 g, 100 g, dan 125 g) dan 2. Uji coba jarak tanam antar rumpun bibit (10 cm, 15 cm, 20 cm, dan 25 cm). Masing-masing perlakuan diulang tiga kali.Hasil penelitian menunjukkan bahwa pertumbuhan Gelidium sp.menggunakan metode long line dan lepas dasarberpengaruh nyata terhadap bobot awal dan jarak tanam antar rumpun bibit (P<0,05). Pertumbuhan mutlak perlakuan bobot bibit awal terbesar pada metode long line dan lepas dasar sama yaitu pada bobot 125 g. Laju pertumbuhan harian perlakuan jarak tanam antar rumpun terbesar pada metode long line dan lepas dasar pun sama yaitu pada jarak 15 cm.Budidaya rumput laut Gelidium menggunakan kantong pada metode long line dan lepas dasar memiliki teknis yang sama baik dari segi bobot awal dan jarak tanam antar rumpun bibit.
Universitas Gadjah Mada
Loka Riset Budidaya Rumput Laut
2020-12-30
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Rancangan percobaan yang digunakan yaitu Rancangan Acak Lengkap (RAL) yang terdiri dari dua metode (long line dan lepas dasar) dan dua perlakuan yaitu : 1. Uji coba bobot awal rumput laut (bobot bibit 10 g, 20 g, 30 g, 40 g, 50 g, 75 g, 100 g, dan 125 g)
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/47799
10.22146/jfs.47799
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 22, No 2 (2020); 127-131
Jurnal Perikanan Universitas Gadjah Mada; Vol 22, No 2 (2020); 127-131
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/47799/30253
https://jurnal.ugm.ac.id/jfs/article/downloadSuppFile/47799/8740
Copyright (c) 2020 Jurnal Perikanan Universitas Gadjah Mada
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/48147
2020-12-30T08:22:40Z
jfs:FRM
Tanggung Jawab Masyarakat Lokal pada Konservasi Penyu Hijau (Chelonia mydas) di Pesisir Selatan Jawa Barat
Nurhayati, Atikah
Herawati, Titin
Nurruhwati, Isni
Riyantini, Indah
Social Economic of Fisheries and Marine Science
Jawa Barat; komunitas lokal; konservasi; penyu; pesisir
Populasi penyu adalah bagian dari keanekaragaman hayati. Penyu adalah reptil yang hidup di lautan yang terancam punah, sehingga diperlukan upaya untuk melindungi melalui konservasi penyu. Salah satu daerah konservasi penyu adalah di pantai selatan Provinsi Jawa Barat. Masyarakat memiliki peran penting dalam pengelolaan konservasi penyu. Penelitian ini bertujuan untuk menganalisis tingkat tanggung jawab masyarakat lokal terhadap konservasi penyu di pantai selatan Jawa Barat, Indonesia. Metode yang digunakan dalam penelitian ini adalah metode studi kasus di pantai selatan Jawa Barat. Penelitian ini dilakukan pada bulan Agustus 2018 - Februari 2019. Teknik pengambilan responden menggunakan purposive sampling sebanyak 35 responden. Alat analisis yang digunakan adalah deskripsi kuantitatif. Berdasarkan penelitian ini tingkat tanggung jawab masyarakat lokal dalam konservasi penyu di pantai selatan Jawa Barat, terdiri dari: (1) respon masyarakat lokal terhadap pendidikan dan pengetahuan konservasi penyu memiliki nilai tanggung jawab yang tinggi; (2) respon masyarakat lokal terhadap pengelolaan habitat penyu memiliki nilai tanggung jawab yang rendah; (3) respon masyarakat lokal untuk merubah perilaku melestarikan penyu memiliki nilai tanggung jawab yang rendah; (4) respon masyarakat lokal tentang ancaman kepunahan penyu memiliki nilai tanggung jawab yang rendah; (5) respon masyarakat lokal tentang ekowisata penyu memiliki nilai tanggung jawab yang tinggi. Berdasarkan hasil peneltian disarankan perlu adanya pelatihan yang dilakukan secara kontinue untuk meningkatkan pengetahuan dan pendidikan masyarakat lokal mengenai konservasi penyu serta koordinasi antarstakeholder untuk mengelola kawasan konservasi penyu melalui edukasi ekowisata bahari.
Universitas Gadjah Mada
Faculty of Fisheries and Marine Science, Padjadjaran University
2020-12-30
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/48147
10.22146/jfs.48147
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 22, No 2 (2020); 77-84
Jurnal Perikanan Universitas Gadjah Mada; Vol 22, No 2 (2020); 77-84
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/48147/30246
Copyright (c) 2020 Jurnal Perikanan Universitas Gadjah Mada
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/48254
2020-07-16T15:41:13Z
jfs:AQa
Peningkatan Pertumbuhan Rumput Laut Halymenia sp. melalui Penentuan Jarak Tanam Rumpun
Fadilah, Siti
Pratiwi, Dhini Arum
Akuakultur
Halymenia; planting distance; seaweed
Tujuan penelitian ini adalah untuk menentukan jarak tanam rumpun yang sesuai untuk budidaya rumput laut Halymenia sp. Penelitian dilaksanakan pada bulan September - Oktober 2017 di perairan Desa Patas, Kecamatan Gerokgak, Kabupaten Buleleng, Provinsi Bali. Desain penelitian yang digunakan adalah rancangan acak lengkap (RAL). Satu faktor perlakuan yang diuji adalah jarak rumpun yang terdiri atas 4 taraf perlakuan yaitu 10, 15, 20 dan 25 cm. Tali bentangan yang digunakan panjangnya 15 m dengan jarak antar tali bentangan 1 m dan bobot awal rumpun 50 g. Budidaya dilakukan dengan metode monoline lepas dasar. Pemeliharaan dilakukan selama 1 siklus (45 hari) dengan sampling pertumbuhan tiap 5 hari dan sampling kualitas air tiap 15 hari. Analisis sampel dilakukan untuk mendapatkan rendemen karaginan dan kualitas air berupa nitrat dan fosfat. Hasil penelitian menunjukkan jarak tanam rumpun 25 cm memberikan laju pertumbuhan terbaik (p<0,5) dan randemen karaginan yang lebih tinggi dari perlakuan jarak 20 cm (p<0.5).
Universitas Gadjah Mada
Loka Riset Budidaya Rumput Laut
2020-06-30
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Desain penelitian yang digunakan adalah rancangan acak lengkap (RAL). Satu faktor perlakuan yang diuji adalah jarak rumpun yang terdiri atas 4 taraf perlakuan yaitu 10, 15, 20 dan 25 cm.
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/48254
10.22146/jfs.48254
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 22, No 1 (2020); 37-41
Jurnal Perikanan Universitas Gadjah Mada; Vol 22, No 1 (2020); 37-41
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/48254/28197
Copyright (c) 2020 Jurnal Perikanan Universitas Gadjah Mada
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/48440
2020-12-30T08:22:41Z
jfs:FRM
Reproduction of Indian Mackerel Rastreliger kanagurta (Cuvier, 1816) in Morodemak Coast Demak Regency
Rachmanto, Dwi
Djumanto, Djumanto
Setyobudi, Eko
Fecundity; gonad; Indian mackerel; Java Sea
Indian mackerel is a group of small pelagic fish that has high economic value and is ecologically important. The catch of Indian mackerel in the Morodemak Coastal Fishing Port of Central Java has decreased within 2016-2018, which is suspected by overexploitation. This study aims to observe the reproduction of Indian mackerel. Fish samples were collected from the catches of the mini purse seine operated by fishermen in April-June 2019. The fish samples were measured their length and weight individually, then the abdomen dissected to collect gonad, and counted in sub-sample of the egg number. Data were analyzed to determine the length-weight relationship of fish, sex ratio, gonad maturity level (GML), gonad maturity index (GMI), the size of the first gonad matured, and the egg number in each gonad brood fish. The results showed a negative allometric length relationship, and the length-weight relation equation in female fish was W = 0.038 L 2.59 and in male was W = 0.178 L 2.03. The value of fish condition factors in males, and females obtained values ranging from 1-2. The proportion of fish in GML III ranges from 27.2 to 82.5%, while GML IV ranges from 3.6 to 33.8%. Fish GMI ranged from 0.17 to 4.75%. The eggs number ranged from 11.235 to 40.878 grain. The female Indian mackerel get the first gonad matured at the size of 15.2 cm.
Universitas Gadjah Mada
Provincial Government of Central Java
2020-12-30
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/48440
10.22146/jfs.48440
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 22, No 2 (2020); 85-91
Jurnal Perikanan Universitas Gadjah Mada; Vol 22, No 2 (2020); 85-91
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/48440/30247
Copyright (c) 2020 Jurnal Perikanan Universitas Gadjah Mada
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/48774
2020-07-16T15:41:13Z
jfs:FRM
Demographic Characteristics and Noneconomic Outcomes of Women Entrepreneurs with Moderation of Barriers: The Case of Small Enterprises in Rural Coastal Area of Indonesia
Putriantini, Ika Nur
Takahashi, Yoshi
Fishery Socio-Economic
Women entrepreneurs; demographic characteristics; noneconomic outcomes; barriers; moderation; rural; coastal; Indonesia
As a means of escaping poverty, women often become entrepreneurs while maintaining a traditional occupation and this may limit their ability to take full advantage of entrepreneurial opportunities. This study provides a relevant examination of women entrepreneurs in a rural coastal area of a developing country; as such, it helps contribute to perspectives on demographic characteristics, on the barriers to, and the noneconomic outcomes of women entrepreneurs in the rural areas of developing countries. The results demonstrate that all the demographic characteristics of women entrepreneurs correlate significantly with noneconomic outcomes. Meanwhile, only three of five barriers were found to moderate the relationship between the demographic characteristics and noneconomic outcomes. These barriers are likely to affect the real-world relationship between the demographic characteristics and non-economic outcomes. For that reason, great attentions need to be given for policy makers to improve the presence of small enterprises.
Universitas Gadjah Mada
2020-06-30
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Partial Least Square
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/48774
10.22146/jfs.48774
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 22, No 1 (2020); 43-54
Jurnal Perikanan Universitas Gadjah Mada; Vol 22, No 1 (2020); 43-54
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/48774/28202
Copyright (c) 2020 Jurnal Perikanan Universitas Gadjah Mada
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/50960
2020-02-11T06:38:03Z
jfs:FRM
Perception-based Indicator for Sustainability of Shrimp Culture in the Less Favorable Areas at Southern Coast of Yogyakarta
Suadi, Suadi
Saksono, Hery
Triyatmo, Bambang
Shrimp culture; perception; sustainability; indicator; coastal; DIY
Shrimp farming has been introduced since the mid-1980s at the southern coast of Daerah Istimewa Yogyakarta (DIY). However, the industry was not well growing in the initial stage. The new shrimp development project also promoted in the early of 2000s, particularly in Jangkaran Village, Subdistrict of Temon, Kulon Progo District and Poncosari Village, Subdistrict of Srandakan, Bantul District, but many of shrimp farms fail because of shrimp diseases, lack of capital to recover and shrimp farming experiences. Recently, the shrimp culture industry experienced rapid expansion along the coast of the two districts. This study aimed to determine the profile and growing of shrimp farming at the southern coast of DIY and to identify the technical aspects, social, and economic indicators of sustainable shrimp culture in the less favorable areas. To identify the sustainability of current shrimp culture, the study develop four indicators consist of technical indicators (6 sub-indicators), economic indicators (9 sub-indicators), social indicators (7 sub-indicators), and environmental indicators (8 sub-indicator). The study was conducted during March to October 2014 by using a combination of literature study and survey at two selected villages: Jangkaran and Poncosari Villages. The total 82 respondents were interviewed; consist of shrimp farmers, coastal communities, community leaders, and local government. The study showed that the rapid growing of shrimp farming were caused by several factors, among others: (1) the existence of technological innovation in shrimp farming in the sandy soil areas, particularly the lower cost in the pond investment and the more easier of seawater collecting; (2) high price and market opportunities of the commodity; and (3) changes in the physical environment due to the threat of coastal erosion which damage the fisher livelihood, thus demanding adaptation strategies. Shrimp farmer in average managed 2,138 m2 and implemented intensive to super intensive cultivation technology, with an average stocking density of 144 shrimp/m2. Production per year in average reaches 25.9 ton/ha and generating revenue of IDR286.544.232 per year. The total cost of production is estimated at IDR210.590.175 per year, and generated a net profit of IDR75.954.057 per year. The perception based indicator of sustainability showed the environmental related issues were in average have a low value. Thus, environmental regulation of aquaculture is an important aspect to be considered in promoting sustainable development of shrimp farming at the southern coast of the province.
Universitas Gadjah Mada
2019-12-30
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/50960
10.22146/jfs.50960
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 21, No 2 (2019); 53-64
Jurnal Perikanan Universitas Gadjah Mada; Vol 21, No 2 (2019); 53-64
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/50960/26655
Copyright (c) 2019 Jurnal Perikanan Universitas Gadjah Mada
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/51258
2020-07-16T15:41:13Z
jfs:AQa
Protective Effect of Microbubble Aeration and Dietary Probiotics BALSS on Survival and Immunity of White Leg Shrimp (Litopenaeus vannamei) Postlarvae against Acute Low Salinity Stress
Ayuningrum, Shima Bhaskara
Istiqomah, Indah
Rustadi, Rustadi
Triyatmo, Bambang
Isnansetyo, Alim
Budhijanto, Wiratni
Deendarlianto, Deendarlianto
White leg shrimp; microbubble; probiotic; immunity; survival; stress test; acute low salinity
Survival rate and immunity of white leg shrimp ((Litopenaeus vannamei) postlarvae against acute salinity stress were evaluated in indoor experimental trials. The research was conducted with 2x2 factorial design with two levels of aeration (microbubble and macro bubble) and two levels of diet (with and without probiotics) resulting four treatments in triplicate: application of microbubble with gut probiotics (MiP), without gut probiotics (MiC), and macro bubble with gut probiotics (MaP) and without probiotics (MaC). White leg shrimps measuring 7.6 g were maintained in the tanks for 60 days and fed five times a day at a dose of 5% biomass. Harvested shrimp were tested for low salinity stress (5 ppt) for 3 hours. Glucose level, total protein, bactericidal activity, natural agglutination, phenoloxidase, respiratory burst, and superoxide dismutase activities in the hemolymph and the shrimp survival rate (SR) were analyzed before and after the stress tests. Although all examined parameters remained the same between groups before the stress test, significant differences were found among them after the stress test. Microbubble aeration obtained stabilization of hemolymph glucose level, best survival rate, bactericidal activity, and agglutination activities. No significant effect was resulted by the dietary probiotic treatments, but the interaction with aeration treatments revealed the importance to compensate shrimp survival rate when microbubble aeration is unavailable.
Universitas Gadjah Mada
Faculty of Agriculture UGM
2020-06-30
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
experimental
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/51258
10.22146/jfs.51258
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 22, No 1 (2020); 1-7
Jurnal Perikanan Universitas Gadjah Mada; Vol 22, No 1 (2020); 1-7
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/51258/28194
Copyright (c) 2020 Jurnal Perikanan Universitas Gadjah Mada
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/52348
2021-06-30T05:31:13Z
jfs:FRM
Karakter Morfometrik dan Meristik Ikan Layang (Decapterus macrosoma Bleeker, 1851) di Pantai Selatan Daerah Istimewa Yogyakarta, Indonesia
Kusumanigrum, Rachma Cintya
Alfiatunnisa, Nahla
Murwantoko, Murwantoko
Setyobudi, Eko
Aquatic Resources Management
Identifikasi; pelagis kecil; rangka morfometrik; sirip; sisik
Suatu spesies harus memiliki satu taksonomi yang jelas dan disepakati secara global untuk mempermudah para peneliti dalam membahas suatu spesies. Penelitian ini bertujuan untuk mengidentifikasi spesies ikan layang (Decapterus spp.) yang tertangkap di Perairan Daerah Istimewa Yogyakarta secara morfologi, morfometrik, dan meristik. Ikan layang diperoleh dari tangkapan nelayan Sadeng pada bulan Maret-Juni 2019. Sampel yang diambil berjumlah 207 ekor. Identifikasi secara morfologi dilakukan dengan pengukuran 23 karakter truss morfometrik dan 6 karakter meristik. Analisis data morfometrik menggunakan Principal Component Analysis sedangkan data meristik dibandingkan dengan pustaka. Jenis ikan layang yang ditemukan di Perairan Daerah Istimewa Yogyakarta berdasarkan identifikasi morfologi adalah Decapterus macrosoma. Karakter meristik di dapatkan rumus D1 VIII; D2 . I, 31-39; A. II, I, 25-32; P. 22-23; V. 23-30; L1 scute 23-40. Spesies layang yang ditemukan di Perairan Daerah Istimewa Yogyakarta dapat dibedakan secara morfometrik yaitu berdasarkan jarak akhir tulang kepala dengan bawah tutup insang, jarak akhir tulang kepala dengan sirip ventral, jarak sirip dorsal pertama dengan sirip ventral, jarak sirip dorsal pertama dengan sirip anal bagian depan, jarak sirip ventral dengan sirip dorsal kedua bagian depan dan jarak sirip anal bagian belakang dengan anal finlet bagian atas.
Universitas Gadjah Mada
Departemen Perikanan, Fakultas Pertanian, UniversitasGadjah Mada
2021-06-30
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Observation
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/52348
10.22146/jfs.52348
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 23, No 1 (2021); 1-7
Jurnal Perikanan Universitas Gadjah Mada; Vol 23, No 1 (2021); 1-7
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/52348/31681
Copyright (c) 2021 Jurnal Perikanan Universitas Gadjah Mada
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/53099
2020-12-30T08:22:42Z
jfs:FRM
Analisa Keberlanjutan Pengelolaan Sumber Daya Perikanan di Perairan Selat Madura Jawa Timur
Hidayah, Zainul
Nuzula, Nike Ika
Wiyanto, Dwi Budi
Keberlanjutan; multi-dimensional scaling; over-fishing; pengelolaan perikanan
Selat Madura merupakan perairan yang memisahkan antara Pulau Madura dengan daratan Pulau Jawa bagian timur. Sejak tahun 2010 status penangkapan ikan di perairan ini telah melebihi batas lestarinya (over-fishing). Penelitian ini bertujuan untuk mengkaji status keberlanjutan terhadap pengelolaan sumberdaya perikanan dan pengaruhnya terhadap lingkungan serta masyarakat di perairan Selat Madura. Waktu penelitian ini adalah bulan Februari sampai dengan Oktober 2018. Metode Multi Dimensional Scaling (MDS) dengan analisa terhadap 5 dimensi (lingkungan, ekonomi, teknologi, sosial dan kelembagaan) digunakan untuk mengetahui status keberlanjutan pengelolaan perikanan. Data diperoleh dari beberapa sumber, antara lain berasal dari laporan tahunan Dinas Kelautan dan Perikanan Jawa Timur, studi-studi terdahulu yang dilakukan di Selat Madura dan wawancara dengan responden kunci. Hasil penelitian menunjukkan bahwa untuk dimensi ekologi, ekonomi dan teknologi, pengelolaan perikanan di Selat Madura berada pada status kurang berkelanjutan (skor <50). Sementara itu untuk dimensi sosial dan kelembagaan berada pada status cukup berkelanjutan hingga berkelanjutan. Untuk meningkatkan status keberlanjutan pengelolaan sumber daya perikanan di Selat Madura diperlukan upaya rehabilitasi lingkungan pesisir, bantuan subsidi atau modal bagi nelayan dan pemanfaatan teknologi untuk membantu aktivitas penangkapan ikan
Universitas Gadjah Mada
2020-12-30
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Metode Multi Dimensional Scaling (MDS)
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/53099
10.22146/jfs.53099
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 22, No 2 (2020); 101-111
Jurnal Perikanan Universitas Gadjah Mada; Vol 22, No 2 (2020); 101-111
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/53099/30249
Copyright (c) 2020 Jurnal Perikanan Universitas Gadjah Mada
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/54001
2020-12-30T08:22:42Z
jfs:FRM
Studi Pertumbuhan dan Biologi Reproduksi Ikan Tambayuk (Puntius lineatus) di Danau Hanjalutung, Kota Palangka Raya
Elvince, Rosana
Aunurafik, Aunurafik
Danau Hanjalutung; ikan tambayuk (Puntius lineatus); panjang berat; seks rasio; tingkat kematangan gonad
Danau Hanajalutung merupakan salah satu danau oxbow yang terdapat di Kota Palangka Raya, Provinsi Kalimantan Tengah. Danau tersebut memiliki arti penting bagi penduduk sekitar sebagai tempat melakukan kegiatan perikanan, baik penangkapan maupun kegiatan budidaya. Penelitian yang dilakukan di Danau Hanjalutung untuk mempelajari panjang berat, rasio kelamin dan tingkat kematangan gonad Ikan Tambayuk (Puntius lineatus). Pengambilan sampel ikan dilakukan dengan menggunakan metode survei dengan menggunakan jaring insang dengan ukuran mata jaring 1 inch, 1 1/2 inch, 2 inch dan 21/2 inch. Berdasarkan hasil penelitian, terdapat 9 famili dengan total 916 ekor ikan yang tertangkap. Sedangkan hubungan panjang berat ikan Tambayuk jantan dan betina adalah allometrik negatif atau pertambahan panjang lebih cepat dari pertambahan beratnya dengan nilai b= 1,450. Rasio kelamin antara jantan dan betina adalah rata-rata 46,76%, dan tingkat kematangan gonad tahap II paling banyak teramati. Ikan Tambayuk didominasi oleh tingTKG II, hal ini menunjukkan bahwa ikan Tambayuk yang tertangkap di Danau Hanjalutung pada bulan April dalam tahap pematangan gonad.
Universitas Gadjah Mada
2020-12-30
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/54001
10.22146/jfs.54001
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 22, No 2 (2020); 93-99
Jurnal Perikanan Universitas Gadjah Mada; Vol 22, No 2 (2020); 93-99
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/54001/30248
Copyright (c) 2020 Jurnal Perikanan Universitas Gadjah Mada
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/54064
2020-12-30T08:22:43Z
jfs:AQa
Detection of 16S Mitochondrial Gene Polymorphism on Barb Fish (Barbodes binotatus Valenciennes, 1842) from Lake Lebo Taliwang, West Nusa Tenggara
Arisuryanti, Tuty
Alfianti, Astin
Firdaus, Nadya Ulfa Nida'
Hakim, Lukman
Genetics; Fish Genetics
Barbodes binotatus; 16S gene; polymorphism
The spotted barb fish (Barbodes binotatus), a tropical cyprinid fish, is one of the abundant fishes in Lake Lebo Taliwang commonly consumed due to high nutrition and utilized as an aquarium trade due to their exotic colour. However, no genetic information related to the intra-population genetic variation of the fish species in Lake Lebo Taliwang. Genetic information of the spotted barb fish can play an important role for the fish conservation. Therefore, the objective of this study was to detect 16S mitochondrial gene polymorphism of the spotted barb fish which can be used to detect their genetic variation. The method used in this study was a PCR method with primers 16Sar and 16Sbr. The data was then analysed using MESQUITE, MEGA, DnaSP and PopART to identify 16S mitochondrial gene polymorphism. This study obtained 610 base pairs after alignment of 16S sequences of all samples. Five haplotypes were detected with 9 variable sites and 2 parsimony informative sites. Haplotype diversity and nucleotide diversity of the spotted barb fish were 1.00 and 0.0066 respectively. In addition, genetic distance among the samples was 0.66. This finding exhibited polymorphism on 16S gene sequence among the fish samples and this data indicated genetic variation of the spotted barb from Lake Lebo Taliwang.
Universitas Gadjah Mada
Universitas Gadjah Mada and Head of Integrated Research and Testing Laboratory (LPPT) Universitas Gadjah Mada for providing research facilities. This research has been supported by Faculty Funding (Hibah Kolaborasi Dosen & Mahasiswa) with contract No. 123
2020-12-30
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Direct sequencing
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/54064
10.22146/jfs.54064
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 22, No 2 (2020); 123-126
Jurnal Perikanan Universitas Gadjah Mada; Vol 22, No 2 (2020); 123-126
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/54064/30252
Copyright (c) 2020 Jurnal Perikanan Universitas Gadjah Mada
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/55428
2020-07-16T15:41:13Z
jfs:AQa
Magot Flour Performance in Increases Formula Feed Efficiency and Growth of Nirwana Race Tilapia (Oreochromis sp.)
Prajayati, Vini Taru Febriani
Hasan, Otie Dylan Subhakti
Mulyono, Mugi
Aquaculture
Tilapia; nirwana race; substitution; fish flour; magot flour
Tilapia is an economically important fish and is widely cultivated in Indonesia. More food in tilapia farming uses fish meal which needs to be replaced because of dependence as an imported product that affects production costs. One of the local raw materials that can be used as a source of animal protein is magot. This study aims to analyze the right proportion of magot flour with a combination of fish meal and magot flour in feed so as to produce maximum growth and feed efficiency for tilapia seeds. This research was conducted in September to December 2019. Test fish used were tilapia seeds measuring 1-2 cm with an average weight of 0.16 g with a stocking density of 1 fish / m3. Fish are fed twice a day with a percentage of daily feeding of 3% of fish biomass. This study used a completely randomized design (CRD) with five treatments and three replications. The treatment in this research is, treatment A = substitution of fish meal 100% with magot flour 0%, B = substitution of fish meal 75% with magot flour 25%, C = substitution of fish meal 50% with magot flour 50%, D = substitution of flour fish 25% with 75% magot flour, E = substitution of 0% fish flour with 100% magot flour. Data were analyzed using analysis of variance (ANOVA) if there were significantly different treatment effects followed by Duncan's Multiple Range Test with a significance level of 0.05. The results showed that the addition of magot flour 50% gave a significant result (P <0.05) on protein retention with a value of 14.83%, a specific growth rate with a value of 2.00%, absolute weight growth with a value of 4.34 g, and efficiency of utilization feed with a value of 93.59%. No effects were found in the the feed consumption rate and fish survival. Treatment C combination of 50% fish meal and magot flour can give the best results for the growth of Nirwana race Tilapia.
Universitas Gadjah Mada
Pusat Pendidikan Kementerian Kelautan dan Perikanan
2020-06-30
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
riset
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/55428
10.22146/jfs.55428
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 22, No 1 (2020); 27-35
Jurnal Perikanan Universitas Gadjah Mada; Vol 22, No 1 (2020); 27-35
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/55428/28198
https://jurnal.ugm.ac.id/jfs/article/downloadSuppFile/55428/11727
https://jurnal.ugm.ac.id/jfs/article/downloadSuppFile/55428/11728
https://jurnal.ugm.ac.id/jfs/article/downloadSuppFile/55428/11729
https://jurnal.ugm.ac.id/jfs/article/downloadSuppFile/55428/11730
https://jurnal.ugm.ac.id/jfs/article/downloadSuppFile/55428/11731
https://jurnal.ugm.ac.id/jfs/article/downloadSuppFile/55428/11732
Copyright (c) 2020 Jurnal Perikanan Universitas Gadjah Mada
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/55524
2020-07-16T15:41:13Z
jfs:AQa
Efisiensi dan Rasio Konversi Pakan Ikan dengan berbagai Dosis Papain pada Kerapu Cantang (E. fuscoguttatus >< E. lanceolatus)
Putra, Wiwin Kusuma Atmaja
Suhaili, Suhaili
Yulianto, Tri
Kerapu; enzim papain; efisiensi pakan; kecernaan
Pertumbuhan ikan kerapu cantang pada tahap pendederan berkisar 3-4 bulan, pembesaran di keramba jaring apung berkisar 6-7 bulan maka total waktu dibutuhkan sekitar 9 sampai 1 tahun. Pertumbuhan ikan kerapu akan lebih cepat jika diberi pakan ikan rucah dibandingkan dengan pelet. Tetapi ketersedian ikan rucah tidak pasti sehingga penggunaan pellet mesti dilakukan. Maka untuk meningkatkan pertumbuhan dapat dilakukan penambahan enzim papain agar pencernaan dan penyerapan nutrisi pakan dapat maksimal. Penelitian ini bertujuan untuk menentukan dosis pemberian enzim papain dalam meningkatkan nilai efisiensi pakan dan nilai konversi pakan ikan kerapu cantang Epinephelus fuscoguttatus >< E lanceolatus. Penelitian ini dilakukan pada bulan Oktober – November 2019 selama 6 minggu (42 hari) di Hatchery Skala Rumah Tangga (HSRT) Koperasi Marin Agri Sejahtera, Kota Tanjungpinang Kepulauan Riau. Metode yang digunakan ialah eksperimental dengan Rancangan Acak Lengkap (RAL) dengan empat perlakuan dan tiga kali ulangan dimana perlakuan K (tanpa pemberian enzim papain), perlakuan A (dosis enzim papain 2,75%), perlakuan B (dosis enzim papain 3,75%), perlakuan C (enzim papain 4,75%). Analisis data menggunakan One-Way ANOVA dan uji lanjut Tukey menunjukkan bahwa pemberian dosis enzim (4,75%) atau perlakuan C, merupakan hasil terbaik dimana hasil yang didapatkan pada nilai efisiensi pakan (74,73±7,14 %), rasio konversi pakan (1,37±0,14), pertumbuhan bobot mutlak sebesar (19,97±2,81 g) dan kelangsungan hidup (100±0,00 %). Rekomendasi dari penelitian ini adalah penambahan enzim papain dengan dosis 4,75% dapat memberikan keuntungan pertumbuhan, efisiensi pakan, kelangsungan hidup lebih tinggi dan rasio konversi pakan lebih rendah
Universitas Gadjah Mada
2020-06-30
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/55524
10.22146/jfs.55524
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 22, No 1 (2020); 19-25
Jurnal Perikanan Universitas Gadjah Mada; Vol 22, No 1 (2020); 19-25
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/55524/28196
Copyright (c) 2020 Jurnal Perikanan Universitas Gadjah Mada
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/57412
2021-06-30T05:31:13Z
jfs:AQa
Analisis Kesesuaian Air Sumber untuk Budidaya Udang di Kecamatan Purwodadi, Kabupaten Purworejo
Setyawan, Arief Rahmat
Purnama, Setyawan
Sudarmadji, Sudarmadji
Air sumber; kesesuaian; kualitas air; tambak udang
Kecamatan Purwodadi merupakan kawasan yang diarahkan sebagai wilayah pertambakan udang karena ketersediaan areal pesisir yang luas dan sumber air yang memadai. Kesesuaian lokasi merupakan faktor penting pada budidaya udang, karena dapat mempengaruhi kesuksesan dan keberlanjutan suatu tambak. Pengukuran kualitas parameter perairan terhadap komoditas budidaya perlu dilakukan untuk mengetahui tingkat kesesuaiannya terhadap komoditas yang dibudidayakan. Penelitian bertujuan untuk mengetahui kesesuaian air tanah di kawasan pertambakan Kecamatan Purwodadi, Kabupaten Purworejo. Penelitian dilakukan dengan membandingkan nilai kualitas air sumber dengan baku mutu yang ada dengan menggunakan 10 sumur sumber tambak udang. Hasil pengamatan terhadap kualitas air tanah pada sumur sumber tambak di kawasan pertambakan Kecamatan Purwodadi menunjukan dari 10 parameter yang digunakan, terdapat 4 parameter yang tidak sesuai dengan baku mutu air sumber untuk budidaya udang vanname yaitu oksigen terlarut (6 sumur sumber), chemical oxygen demand (COD) (8 sumur sumber), nitrit (5 sumur sumber), dan amonia (3 sumur sumber). Berdasarkan tingkat kualitas air sumur sumber, mayoritas sumur sumber tidak memenuhi kriteria dengan hanya sumur 5 yang memenuhi baku mutu, dan sumur 3 serta 4 yang paling tidak memenuhi kriteria (4 parameter tidak memenuhi baku mutu). Pemilihan lokasi sumur sumber dan pengecekan kualitas sumur sumber diperlukan untuk mendapatkan air sumber yang memenuhi ambang batas serta penerapan teknologi dalam budidaya perlu dilakukan untuk menjaga kualitas air budidaya.
Universitas Gadjah Mada
2021-06-30
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/57412
10.22146/jfs.57412
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 23, No 1 (2021); 25-30
Jurnal Perikanan Universitas Gadjah Mada; Vol 23, No 1 (2021); 25-30
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/57412/31684
Copyright (c) 2021 Jurnal Perikanan Universitas Gadjah Mada
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/57468
2020-12-30T08:22:44Z
jfs:AQa
Evaluasi Tepung Daun Kelor (Moringa oleifera) yang dihidrolisis Cairan Rumen Domba sebagai Bahan Baku Pakan Ikan Lele (Clarias sp.)
Putra, Achmad Noerkhaerin
Maula, Irhas Malik
Aryati, Aryati
Syamsunarno, Mas Bayu
Mustahal, Mustahal
Nutrisi Ikan
Cairan rumen domba; hidrolisis enzim; ikan lele; tepung daun kelor
Serat kasar tinggi yang terkandung dalam tepung daun kelor (TDK) menjadi penghambat penggunaan TDK sebagai bahan baku pakan ikan lele. Penelitian ini bertujuan untuk mengevaluasi penggunaan TDK yang dihidrolisis dengan cairan rumen domba untuk pakan ikan lele. Uji hidrolisis pada TDK dengan menggunakan 4 dosis cairan rumen yaitu 0, 100, 125, 175 mL/kg dan lama inkubasi selama 0, 12, 24 jam, dilakukan untuk memperoleh dosis dan waktu inkubasi terbaik untuk menurunkan nilai serat kasar dalam TDK. Penelitian terdiri dari tiga pelakuan dan tiga kali ulangan, yaitu pakan referensi/acuan, pakan uji TDK tanpa hidrolis cairan rumen, dan pakan uji TDK dengan hidrolisis cairan rumen. Ikan lele dengan bobot sebesar 5,05±0,005 g dipelihara selama 45 hari dengan padat tebar 15 ekor/wadah. Hasil penelitian menunjukkan bahwa dosis rumen 175 mL/kg dengan lama inkubasi 12 jam menghasilkan nilai serat kasar terkecil (4,33%). Pakan uji TDK dengan hidrolisis cairan rumen menghasilkan nilai kecernaan bahan baku tiga kali lipat lebih besar (50,19%) dibandingkan dengan pakan uji tanpa hidrolisis (16,90%). TDK yang dihidrolisis cairan rumen domba dapat digunakan sebagai bahan baku pakan ikan lele karena meningkatkan kecernaan nutrien, rasio konversi pakan dan pertumbuhan yang lebih tinggi dibandingkan dengan pakan uji TDK tanpa hidrolisis pada pemeliharaan ikan lele.
Universitas Gadjah Mada
Rumah Potong Hewan Trondol, Kabupaten Serang, Provinsi Banten & Tri Farm, Anyer, Kabupaten Serang Provinsi Banten
2020-12-30
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
eksperimental
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/57468
10.22146/jfs.57468
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 22, No 2 (2020); 133-140
Jurnal Perikanan Universitas Gadjah Mada; Vol 22, No 2 (2020); 133-140
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/57468/30254
Copyright (c) 2020 Jurnal Perikanan Universitas Gadjah Mada
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/58526
2020-12-30T08:22:45Z
jfs:AQa
Evaluasi Kandungan Nutrien dan Antinutrien Tepung Daun Kelor Terfermentasi sebagai Bahan Baku Pakan Ikan
Helmiati, Senny
Rustadi, Rustadi
Isnansetyo, Alim
Zulprizal, Zulprizal
Antinutrien; daun kelor; fermentasi; nutrien; pakan ikan
Penelitian ini bertujuan untuk mengevaluasi kandungan nutrien dan antinutrien tepung daun kelor terfermentasi sebagai sumber protein nabati pakan ikan. Tahap penelitian meliputi pembuatan tepung daun kelor, persiapan dan penghitungan kepadatan bakteri, proses fermentasi, dan analisis kandungan nutrien dan antinutriennya. Bakteri yang digunakan untuk fermentasi merupakan campuran bakteri T2A (Bacillus sp.), T3P1 (Bacillus sp.) dan JAL11 (Lactococcus raffinolactis) dengan kepadatan sebesar 2,16x109 cfu/mL. Fermentasi tepung daun kelor dilakukan selama 168 jam. Analisis kandungan nutrien dan zat antinutrien tepung daun kelor terfermentasi dilakukan pada jam ke-24, ke-48, ke-72, ke-96, ke-120, ke-144 dan ke-168. Kandungan nutrien tepung daun kelor meliputi kadar air (9,04±0,00%), abu (9,70±0,21%), protein (25,77±0,08%), lemak (4,80±0,52%), serat kasar (11,60±0,13%), bahan ekstrak tanpa nitrogen (39,06±0,52%), energi (351,27±3,27 kkal/00 g), hemiselulosa (13,79±0,07%), selulosa (9,9±0,06%) dan lignin (15,34±0,31%). Fermentasi dapat meningkatkan kadar air, abu, protein dan lemak, serta menurunkan kadar serat kasar, bahan ekstrak tanpa nitrogen, hemiselulosa, selulosa, lignin dan antinutrien, antara lain fenol, tanin, asam fitat dan HCN. Hasil penelitian menunjukkan bahwa fermentasi dapat meningkatkan kandungan nutrien dan menurunkan kandungan antinutrien tepung daun kelor, sehingga dapat digunakan sebagai sumber protein nabati pada bahan baku pakan ikan.
Universitas Gadjah Mada
2020-12-30
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/58526
10.22146/jfs.58526
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 22, No 2 (2020); 149-158
Jurnal Perikanan Universitas Gadjah Mada; Vol 22, No 2 (2020); 149-158
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/58526/30255
Copyright (c) 2020 Jurnal Perikanan Universitas Gadjah Mada
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/58917
2021-06-30T05:31:13Z
jfs:FRM
Klasterisasi Spasial Keragaman Spesies Tuna di Perairan Selatan Jawa
Harlyan, Ledhyane Ika
Sambah, Abu Bakar
Iranawati, Feni
Ekawaty, Rani
fisheries management
Analisis keragaman; analisis klaster; daerah penangkapan ikan; distribusi spasial; keanekaragaman spesies; komposisi spesies
Terjadinya penurunan produktivitas perikanan tuna di Perairan Selatan Jawa salah satunya disebabkan oleh adanya kondisi tangkap lebih yang terjadi akibat ketidaktersediaannya informasi geografis akurat terkait jumlah dan jenis spesies. Pendekatan spasial keragaman habitat spesies mampu memberikan prediksi akurat tentang jenis dan jumlah spesies pada suatu daerah penangkapan. Penelitian ini bertujuan untuk menghasilkan peta klasterisasi spasial keragaman spesies tuna berdasarkan data hasil tangkapan tuna dan data lokasi penangkapan di Perairan Selatan Jawa yang diperoleh dari kapal rawai tuna yang menangkap ikan di Samudera Hindia dan mendaratkan tangkapannya di Pelabuhan Perikanan Samudera (PPS) Benoa pada bulan September-November 2019 dengan menggunakan beberapa analisis yaitu: (1) analisis keragaman spesies (Shannon-wiener index dan Menhinick index) dan analisis klasterisasi spasial (ward-hierarchical clustering dengan bootstrapped p-value). Berdasarkan kedua hasil analisis tersebut diperoleh tiga klaster pola sebaran daerah penangkapan tuna di Perairan Selatan Jawa yaitu: (1) klaster yang didominasi oleh spesies Thunnus albacares, (2) klaster yang didominasi oleh Thunnus obessus, dan (3) klaster dengan jumlah spesies tuna yang berimbang. Informasi mengenai ketiga klaster daerah penangkapan ini selanjutnya dapat digunakan sebagai rujukan penentuan pengelolaan perikanan tuna dan upaya pembatasan kapasitas penangkapan khususnya pada spesies tuna yang mengalami penurunan stok.
Universitas Gadjah Mada
Universitas Brawijaya
Fakultas Perikanan dan Ilmu Kelautan
2021-06-30
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
analisis keragaman; analisis klaster
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/58917
10.22146/jfs.58917
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 23, No 1 (2021); 9-16
Jurnal Perikanan Universitas Gadjah Mada; Vol 23, No 1 (2021); 9-16
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/58917/31682
Copyright (c) 2021 Jurnal Perikanan Universitas Gadjah Mada
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/59906
2021-06-30T05:31:13Z
jfs:FPr
Produksi dan Profil Kimia Hidrolisat Protein dari Hasil Samping Pengolahan Udang Segar
Yuniarti, Tatty
Prayudi, Adham
Supenti, Lilis
Suhrawardan, Hendria
Martosuyono, Pujo
fish processing
Asam amino; derajat hidrolisis; kepala udang
Udang merupakan salah satu komoditas hasil perikanan unggulan di Indonesia. Udang diekspor dalam bentuk beku, bentuk olahan, dan bentuk udang segar. Proses pengolahan udang segar menghasilkan hasil samping berupa kepala udang sekitar 68% dan belum dimanfaatkan. Pemanfaatan hasil samping industri pengolahan udang segar adalah pembuatan hidrolisat protein. Penelitian bertujuan untuk menentukan lama waktu hidrolisis optimal dan profil kimia hidrolisat protein dari kepala udang yang diproduksi secara enzimatis. Metode pembuatan hidrolisat kepala udang menggunakan enzim alkalase pada suhu 55°C, konsentrasi enzim 20,000 unit/kg substrat selama 7 jam. Parameter yang diamati adalah derajat hidrolisis (DH), rendemen, analisa proksimat dan asam amino pada bahan baku dan produk hidrolisat udang. Nilai DH kepala udang selama 7 jam adalah 61,33%±3,67. Rendemen hidrolisat kepala udang adalah 79,20%. Kandungan protein bahan baku dan hidrolisat kepala udang 10,52±0,08%; 3,71±0,08%. Bahan baku dan hidrolisat kepala udang mengandung asam amino 21,12% dan 3,33% bb yang didominasi oleh asam amino non esensial seperti asam glutamat (0,5% b/b), dan asam amino esensial leusin (0,30% b/b) dan lisin (0,24% b/b). Kesimpulan penelitian adalah hidrolisat kepala udang berpotensi untuk dimanfaatkan sebagai ingredien bahan pangan yang kaya asam amino.
Universitas Gadjah Mada
Jurusan Penyuluhan Perikanan, Program Studi Penyuluhan Perikanan Sekolah Tinggi Perikanan
2021-06-30
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Metode pembuatan hidrolisat kepala udang menggunakan enzim alkalase pada suhu 55 oC, konsentrasi enzim 20.000 unit/kg substrat selama 7 jam. Parameter yang diamati adalah derajat hidrolisis (DH), rendemen, analisa proksimat dan asam amino pada bahan baku
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/59906
10.22146/jfs.59906
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 23, No 1 (2021); 63-69
Jurnal Perikanan Universitas Gadjah Mada; Vol 23, No 1 (2021); 63-69
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/59906/31689
Copyright (c) 2021 Jurnal Perikanan Universitas Gadjah Mada
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/59960
2021-06-30T05:31:13Z
jfs:FPr
Karakteristik Fisik-Kimia Gelatin dari Kulit Ikan Patin, Ikan Nila, dan Ikan Tuna
Nurilmala, Mala
Nasirullah, Muh Tazri
Nurhayati, Tati
Darmawan, Noviyan
Asam sitrat; ekstraksi; fisik-kimia; gelatin kulit ikan; kekuatan gel
Gelatin merupakan produk hidrolisis kolagen yang memiliki sifat fungsional sehingga dapat digunakan di berbagai industri pangan dan non pangan. Karakteristik fisik-kimia gelatin dari berbagai jenis kulit ikan menjadi hal penting untuk diketahui karena dapat membuktikan kualitas gelatin yang dihasilkan sebagai pengganti kulit sapi dan babi. Penelitian ini bertujuan menentukan karakteristik fisik dan kimia gelatin yang berasal dari jenis kulit ikan yang berbeda sehingga dapat menghasilkan gelatin yang memenuhi standar. Gelatin dihidrolisis menggunakan asam sitrat 0,2% dari berbagai jenis kulit ikan, di antaranya kulit ikan patin (Pangasianodon hypophthalmus), kulit ikan nila (Oreochromis niloticus), dan kulit ikan tuna (Thunnus sp.). Rancangan percobaan dalam penelitian ini yaitu Rancangan Acak Lengkap (RAL) dan uji lanjut Duncan. Gelatin yang dihasilkan telah sesuai dengan standar GMIA 2019 dan SNI 06-3735-1995. Perbedaan jenis kulit ikan berpengaruh terhadap rendemen, kadar air, kadar abu, kekuatan gel, dan setting point gelatin yang dihasilkan (p≤0,05), namun tidak berpengaruh terhadap derajat keasaman (pH) dan viskositas gelatin (p>0,05). Perlakuan terbaik dari penelitian ini adalah gelatin dari kulit ikan patin dengan rendemen 18,11%, kadar air 6,43%, kadar abu 0,39%, viskositas 61,66 mps, pH 5,56, kekuatan gel 204,01 bloom, dan setting point 18,5°C.
Universitas Gadjah Mada
Lembaga Pengelola Dana Pendidikan (LPDP) atas Hibah Pendanaan Riset Inovatif Produktif (RISPRO).
2021-06-30
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/59960
10.22146/jfs.59960
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 23, No 1 (2021); 71-77
Jurnal Perikanan Universitas Gadjah Mada; Vol 23, No 1 (2021); 71-77
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/59960/31690
Copyright (c) 2021 Jurnal Perikanan Universitas Gadjah Mada
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/60080
2021-06-30T05:31:13Z
jfs:FRM
Peta Biodiversitas Zooplankton di Area Pesisir Utara dan Selatan Madura, Jawa Timur
Zakiyah, Umi
Mulyanto, Mulyanto
Environmental Science, Coastal Management
Nutrien; pesisir Madura; peta; sebaran biodiversitas; zooplankton
Kelimpahan serta biodiversitas zooplankton sangat tergantung pada keberadaan fitoplankton sebagai makanan utamanya. Fitoplakton berperan penting sebagai produsen primer di perairan. Keberadaan fitoplankton sendiri selain bergantung faktor fisika-kimiawi perairan, juga nutrien seperti nitrat dan fosfat. Penelitian ini bertujuan untuk memetakan sebaran biodiversitas zooplankton serta faktor yang mempengaruhinya di pesisir utara dan selatan Madura, Jawa Timur. Lokasi pengambilan sampel dilakukan secara purposive di Pantai Pasongsongan, Sumenep dan pantai Pantai Branta Pamekasan di tiga stasiun yang berbeda. Pengukuran parameter kualitas air dilakukan secara in situ dan ex situ, dan analisis biodiversitas zooplankton dilakukan dengan indeks biologi meliputi indeks keanekaragaman, indeks dominansi dan juga dilakukan analisis distribusi spasial menggunakan QGIS Las Palmas 3.10.2 untuk mengetahui peta distribusi kelimpahan nitrat, fosfat, fitoplankton dan zooplankton. Hasil penelitian menunjukkan bahwa kandungan nitrat di pesisir utara Madura berkisar 0,0973 - 0,1124 ppm, sedikit lebih rendah dari pantai selatan Pamekasan yang berkisara antara 0,008 - 0,11 ppm. Konsentrasi fosfat berkisar antara 0,0388 - 0,0685 ppm di pantai utara dan 0,05 - 0,06 ppm di pantai selatan. Selama penelitian ditemukan zooplankton sebanyak 19 genera dari 7 filum. Sub kelas yang paling banyak ditemukan adalah Copepoda dari filum Arthopoda. Densitas zooplankton berkisar antara 48,408 - 57,325 Ind./L di pesisir utara Madura dan antara 210,191 - 314,650 Ind./L di pesisir selatan. Sebaran tertinggi zooplankton didapatkan pada stasiun satu di setiap lokasi sampling baik di pesisir utara maupun selatan Madura. Hal ini sesuai dengan data densitas fitoplankton yang juga menunjukkan nilai yg tinggi di stasiun tersebut. Nilai indeks keanekaragaman yang diperoleh di pesisir selatan sedikit lebih tinggi yaitu berkisar antara 1,6 - 2,05, dibandingkan nilai di pesisir utara berkisar antara 1,2 - 1,4 meskipun nilai tersebut termasuk kedalam kategori keanekaragaman sedang. Hal ini diikuti nilai indeks dominansi berkisar antara 0,17 - 0,39 di pesisir utara dan selatan berkisar antara 0,3 – 0,4 atau dengan kata lain tidak ada genus zooplankton yang mendominasi. Berdasarkan peta sebaran biodiversitas zooplankton disimpulkan bahwa pesisir selatan memiliki biodiversitas zooplankton yang relatif lebih rendah dengan dominansi relatif lebih tinggi dibandingan dengan pesisir utara Madura yang memiliki biodiversitas lebih tinggi dan dominansi spesies yangg lebih rendah.
Universitas Gadjah Mada
2021-06-30
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Sistem Informasi Geografis
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/60080
10.22146/jfs.60080
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 23, No 1 (2021); 17-24
Jurnal Perikanan Universitas Gadjah Mada; Vol 23, No 1 (2021); 17-24
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/60080/31683
Copyright (c) 2021 Jurnal Perikanan Universitas Gadjah Mada
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/60280
2021-06-30T05:31:13Z
jfs:AQa
Peningkatan Ketahanan Benih Ikan Nila Salin (Oreochromis niloticus) terhadap Penyakit Streptococcosis Melalui Vaksinasi Induk
Rahmi, Rahmi
Nisaa, Khairun
Akmal, Akmal
Mardiana, Mardiana
Chadijah, Andi
Salam, Nur Insana
Aquaculture
Ikan nila salin; imunitas; indukan; maternal; streptococcocis; vaksinasi
Penelitian bertujuan untuk menghasilkan benih ikan nila salin yang tahan terhadap penyakit streptococcocis melalui vaksinasi induk. Vaksin yang digunakan dalam penelitian ini adalah bakteri Streptococcus sp. yang dilemahkan dengan formalin 3% (v/v). Penelitian ini dilaksanakan pada Juni-September. Vaksin diinjeksikan pada indukan TKG 2 sebanyak 0,4 mL/kg (konsentrasi 1x109 CFU/mL). Penelitian terdiri dari tiga perlakuan yaitu indukan diinjeksi dengan phosphate buffered saline (PBS) (K), indukan diinjeksi vaksin satu kali (A1), dan indukan diinjeksi vaksin sebanyak dua kali dengan selang waktu dua minggu (A2). Benih yang dihasilkan dari masing-masing perlakuan, diuji tantang melalui perendaman dengan bakteri Streptococcus sp. 107 CFU/mL selama 30 menit pada 10, 15, dan 20 hari setelah penetasan. Parameter yang diamati adalah penetasan telur, aktivitas lisozim, kematian benih setelah uji tantang, dan persentase kelangsungan hidup relatif (RPS) benih. Hasil penelitian menunjukkan bahwa daya tetas telur pada perlakuan A2 (92,21%) secara nyata lebih tinggi (P<0,05) dibandingkan perlakuan induk lainnya, serta aktivitas lisozim (99,47-197,89 U/mL) sampai dengan hari ke-20. Angka kematian pada perlakuan A2 (2,34-45,21%) secara signifikan lebih rendah (P<0,05) dibandingkan perlakuan lain sampai hari ke-20. Nilai RPS indukan A2 tidak berbeda nyata (P>0,05) dengan perlakuan benih dari indukan A1 pada hari ke sepuluh tetapi lebih tinggi pada hari ke 20.
Universitas Gadjah Mada
Pendanaan Hibah Dana Internal LP3M No. Kontrak 0011/KONTR-PENL/PENGABD/IV/1441/2020 Universitas Muhammadiyah Makassar, Pengelola Laboratorium Hatchery Mini Fakultas Ilmu Kelautan dan Perikanan (FIKP) Universitas Hasanuddin atas fasilitas yang diberikan da
2021-06-30
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/60280
10.22146/jfs.60280
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 23, No 1 (2021); 31-36
Jurnal Perikanan Universitas Gadjah Mada; Vol 23, No 1 (2021); 31-36
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/60280/31685
Copyright (c) 2021 Jurnal Perikanan Universitas Gadjah Mada
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/60352
2022-02-06T08:31:54Z
jfs:ART
Pembuatan Konsentrat Omega-3 dari Minyak Hati Hiu Botol dengan Metode Kristalisasi Urea
Chamidah, Anies
Wicaksono, Andaru
Pangan Fungsional; Teknologi Hasil Perikanan
EPA; DHA; Konsentrat Omega-3; kristalisasi urea; minyak hati hiu botol
Minyak ikan adalah sumber terbaik dari omega-3 khususnya EPA dan DHA yang penting untuk kesehatan manusia. Hati hiu kaya akan minyak, sampai saat ini, pemanfaataannya terbatas sebagai sumber squalene atau bahkan dibuang sebagai limbah padahal kandungan asam lemak omega-3nya masih cukup tinggi. Tujuan penelitian ini adalah pembuatan konsentrat omega-3 dari minyak hati ikan hiu. Metode yang digunakan adalah kompleks urea yang dapat memisahkan antara asam lemak jenuh dan tak jenuh dengan perlakuam Aa (rasio urea : asam lemak = 2 :1 suhu 25°C), Ab (rasio urea : asam lemak = 2 :1 suhu 5°C), Ba (rasio urea : asam lemak = 4:1 suhu 25°C) dan Bb (rasio urea : asam lemak = 4 :1 suhu 5°C). Perlakuan terbaik diperoleh pada perlakuan rasio urea: minyak ikan (4:1) dengan suhu pengadukan 5°C (Ba) menghasilkan rendemen sebesar 28,78% dan bilangan iod sebesar 182,48 g/100g serta kadar EPA sebesar 20,04% dan DHA sebesar 13,59% dengan total asam lemak PUFA sebesar 35,78%. Kesimpulannya pembuatan konsentrat omega-3 dari minyak hati hiu botol dengan metode kristalisasi urea layak diupayakan.
Universitas Gadjah Mada
2021-12-31
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
urea crystallization; experimental research
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/60352
10.22146/jfs.60352
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 23, No 2 (2021); 119-125
Jurnal Perikanan Universitas Gadjah Mada; Vol 23, No 2 (2021); 119-125
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/60352/33200
Copyright (c) 2021 Jurnal Perikanan Universitas Gadjah Mada
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/60516
2020-12-30T08:22:44Z
jfs:AQa
Pengaruh Padat Tebar dan Penggunaan Injektor Venturi terhadap Laju Pertumbuhan Udang (Litopenaeus Vannamei) dalam Bak Beton
Novriadi, Romi
Alfitri, Khoirun Nisa
Supriyanto, Supriyanto
Kurniawan, Rudy
Deendarlianto, Deendarlianto
Rustadi, Rustadi
Wiratni, Wiratni
Rahardjo, Sinung
Nutrisi Pakan
Bak beton; injektor venture; kualitas air; laju pertumbuhan; Litopenaues vannamei; padat tebar
Tujuan dari penelitian ini adalah untuk melakukan evaluasi terhadap efek dari perlakuan padat tebar yang berbeda dan penggunaan injektor venture terhadap laju pertumbuhan udang Litopenaeus vannamei yang dipelihara di bak beton. Udang Vannamei (berat awal 0,3 ± 0,07 g) dimasukkan ke dalam 32 bak pemeliharaan dengan ukuran 8x8x1 m dengan padat tebar 300, 400, 500, 600 udang m-2 dan masing-masing padat tebar memiliki delapan pengulangan. Untuk pengamatan injektor venturi, dilakukan di dua kepadatan berbeda yakni 300 dan 600 udang m-2 dengan memasang injektor venturi masing-masing di tiga bak pengamatan dan dibandingkan dengan kontrol. Jumlah pakan yang diberikan ditentukan terlebih dahulu berdasarkan asumsi pertambahan berat udang Vannamei 1 g per minggu, rasio konversi pakan (FCR) 1,4 dan kematian mingguan sebanyak 3 %. Hasil pengamatan menunjukkan bahwa terdapat korelasi negatif antara peningkatan padat tebar dengan laju pertumbuhan udang. Berat akhir udang berada di kisaran 13,0±0,2, 11,6±0,5, 10,3±0,4 dan 9,3±1,0 g untuk padat tebar 300, 400, 500, dan 600 udang m-2. Laju pertambahan berat harian berada di kisaran 0,14±0,02 – 0,17±0,02 g dan semakin membaik ketika pada tebar diturunkan (P<0,05). Sementara, tidak ada perbedaan yang nyata untuk parameter FCR dan tingkat kelulushidupan udang (P<0,05). Injektor venturi dapat meningkatkan produktivitas produksi sebesar 6,63±0,094% untuk kepadatan 600 udang m-2 dan 7,97±0,054% untuk kepadatan 300 udang m-2 dibandingkan bak kontrol. Selama masa produksi, tidak ada pengaruh nyata untuk penggunaan empat padat tebar berbeda terhadap kondisi kualitas air media pemeliharaan dan tidak ada insiden munculnya wabah penyakit.
Universitas Gadjah Mada
PT. Multi Dimensi Kreasi
2020-12-30
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/60516
10.22146/jfs.60516
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 22, No 2 (2020); 141-147
Jurnal Perikanan Universitas Gadjah Mada; Vol 22, No 2 (2020); 141-147
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/60516/30250
Copyright (c) 2020 Jurnal Perikanan Universitas Gadjah Mada
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/61026
2021-06-30T05:31:13Z
jfs:AQa
Kajian Molekuler Ikan Oreochromis spp. dari Perairan Daratan Merauke-Papua, Berdasarkan DNA Mitokondria Fragmen Gen Sitokrom Oksidase Subunit I
Saleky, Dandi
Sianturi, Reny
Dailami, Muhammad
Kusuma, Aradea Bujana
Fisheries
Filogenetik; Gen COI; jarak genetik; O. niloticus; O. mossambicus
Pemanfaatan perikanan secara lestari sangat diperlukan agar sumberdaya perikanan yang ada saat ini bisa terus dimanfaatkan dan juga dalam rangka pemulihan stok perikanan yang telah rusak. Ikan nila (Oreochromis niloticus) dan ikan mujair (Oreochromis mossambicus) secara luas telah dikenal sebagai salah satu spesies ikan air tawar yang penting dalam perikanan budidaya. Penelitian ini dilakukan dengan tujuan identifikasi spesies ikan Oreochromis spp. dari perairan daratan Merauke dengan menggunakan marka gen COI. Amplifikasi DNA dengan gen COI menghasilkan panjang sekuen DNA 656 bp dengan hasil identifikasi adalah O. niloticus dan O. mussambicus dengan tingkat kemiripan 100 % pada masing-masing spesies. Berdasarkan analisis filogenetik dan jarak genetik, sekuen DNA yang dianalisis membentuk clade sesuai dengn hasil indentfikasi dengan jarak genetik 0,000 - 0,002 pada ikan nila dan 0,000 pada ikan mujair. Analisis keragaman genetik ditemukan hanya 1 haplotype dari kedua jenis ikan tersebut. DNA barcode dan filogenetik dapat digunakan dalam mengidentifikasi spesies dalam pengelolaan dan konservasi.
Universitas Gadjah Mada
2021-06-30
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
DNA Barcoding
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/61026
10.22146/jfs.61026
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 23, No 1 (2021); 37-43
Jurnal Perikanan Universitas Gadjah Mada; Vol 23, No 1 (2021); 37-43
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/61026/31686
Copyright (c) 2021 Jurnal Perikanan Universitas Gadjah Mada
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/61167
2022-02-06T08:31:54Z
jfs:ART
Keragaman Genetik Ikan Uceng (Nemacheilus) di Sungai Wilayah Banyumas Berdasar Sekuen Gen Cytochrome Oxidase Subunit I (COI)
Kusuma, Rima Oktavia
Dadiono, Muhammad Sulaiman
Kusuma, Baruna
Syakuri, Hamdan
Genetic diversity
Nemacheilus; COI; keragaman genetik
Ikan uceng (Nemacheilus) merupakan ikan endemik yang hidup di perairan sungai wilayah Banyumas. Penangkapan berlebih serta perubahan kualitas lingkungan menyebabkan penurunan populasinya di alam. Penelitian ini bertujuan untuk mengidentifikasi spesies Nemacheilus yang hidup di perairan sungai Banyumas serta melihat keragaman genetiknya. Cytochrome oxidase subunit I (COI) digunakan sebagai marka molekuler, dimana telah terbukti sebagai penanda (barcode) yang universal dan stabil. Ada bagian dari COI yang bersifat variabel sehingga bagus apabila digunakan melihat keragaman genetik. Hasil BLAST menyatakan bahwa sampel keempat stasiun memiliki nilai per indent 99,54-100% dengan spesies Neimacheilus chrysolaimos. Nilai keragaman haplotype (Hd) 0,679, dan nilai keragaman nukleotida 0,00117. Berdasarkan hal tersebut, keragaman haplotype ikan uceng dikategorikan pada tingkat sedang, sedangkan keragaman nukleotida pada tingkat rendah.
Universitas Gadjah Mada
Jenderal Soedirman University
2021-12-31
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
DNA barcoding and genetic diversity using COI gene
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/61167
10.22146/jfs.61167
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 23, No 2 (2021); 89-94
Jurnal Perikanan Universitas Gadjah Mada; Vol 23, No 2 (2021); 89-94
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/61167/33195
Copyright (c) 2021 Jurnal Perikanan Universitas Gadjah Mada
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/62569
2022-02-06T08:31:54Z
jfs:ART
Potensi Lendir Lele (Clarias batrachus) sebagai Saliva Buatan untuk Perawatan Mulut Kering
Yoretina, Zipora Silka
Djatumurti, Deaoxi Renaschantika
Nasikah, Roissatun
Susanto, Hendri
Yulianto, Heribertus Dedy Kusuma
Daya hambat Candida albicans; lendir lele (Clarias batrachus); pH; saliva; sudut kontak
Xerostomia merupakan kondisi klinis pasien berupa mulut kering yang dapat meningkakan pertumbuhan jamur Candida albicans penyebab kandidiasis. Penanganan pasien xerostomia dapat dilakukakan dengan pemberian saliva buatan. Lendir lele memiliki karakristik dan kemampuan dalam mengganti fungsi saliva sekaligus sebagai antijamur Candida albicans. Penelitian ini bertujuan untuk mengetahui potensi lendir lele (Clarias batrachus) sebagai saliva buatan untuk perawatan mulut kering. Lendir lele (Clarias batrachus) diekstraksi kemudian diformulasikan menjadi saliva buatan dengan konsentrasi 13,2%, 14,4%, dan 17,2%. Pengujian dilakukan dengan mengukur tegangan permukaan menggunakan indikator besarnya sudut kontak tiap tetesan pada glass slide, mengukur derajat keasaman saliva buatan dengan pH meter, serta uji daya hambat pertumbuhan Candida albicans dengan metode disc-diffusion. Data kemudian dianalisis menggunakan uji ANOVA satu jalur dan LSD dengan tingkat kepercayaan 95%. Uji ANOVA menunjukkan perbedaan sudut kontak antara saliva buatan 13,2%, 14,4% dan 17,2% pada glass slide dengan saliva alami dan kontrol positif (p<0.05), Perbedaan daya hambat terhadap koloni Candida albicans signifikan antara saliva buatan dengan kontrol positif dan saliva alami (p<0.05). Berdasarkan uji pH, terdapat perbedaan signifikan ketiga konsentrasi saliva buatan (13,2; 14,4; 17,2%) dengan saliva alami dan kontrol positif. Lendir lele berpotensi sebagai bahan pembuatan saliva buatan dan dapat berfungsi sebagai anti-jamur (Candida albicans).
Universitas Gadjah Mada
Kementrian Riset Teknologi dan Pendidikan Tinggi (KEMENRISTEKDIKTI) Republik Indonesia
2021-12-31
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/62569
10.22146/jfs.62569
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 23, No 2 (2021); 127-131
Jurnal Perikanan Universitas Gadjah Mada; Vol 23, No 2 (2021); 127-131
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/62569/33201
Copyright (c) 2021 Jurnal Perikanan Universitas Gadjah Mada
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/62571
2022-02-06T08:31:54Z
jfs:ART
Kemampuan Pembasahan Saliva Buatan dengan Kandungan Ekstrak Mukus Lele (Clarias batrachus)
Yoretina, Zipora Silka
Dewi, Anne Handrini
Susanto, Hendri
Yulianto, Heribertus Dedy Kusuma
mukus lele (Clarias batrachus); saliva; sudut kontak; pembasahan
Xerostomia merupakan keluhan subyektif mulut kering yang sering berhubungan dengan adanya penurunan fungsi kelenjar saliva. Penanganan pasien xerostomia dapat dilakukan dengan pemberian saliva buatan. Mukus lele memiliki karakteristik dan kemampuan dalam menggantikan fungsi saliva, sehingga dengan konsentrasi yang tepat mampu berperan sebagai lubrikan yang baik. Penelitian ini bertujuan untuk mengetahui ada tidaknya kemampuan pembasahan antara saliva manusia dengan saliva buatan yang mengandung mukus lele (Clarias batrachus) pada permukaan hidrofobik. Mukus lele (Clarias batrachus) diekstraksi kemudian diformulasikan menjadi saliva buatan dengan menambahkan 0,1% methylparaben, 0,05% EDTA, 4,69% dekstrosa, dan aqua pro-injection. Pengujian dilakukan dengan mengukur kemampuan pembasahan saliva buatan menggunakan indikator besarnya sudut kontak sampel pada permukaan hidrofobik selama 5 menit. Data yang digunakan merupakan rerata nilai sudut kontak pada kedua sisi tetesan di menit ke-0, 0,5, 1, 1,5, 2, dan 5 yang dianalisis menggunakan aplikasi ImageJ. Hasil independent sample t-test menunjukkan sudut kontak saliva buatan mukus lele lebih kecil daripada saliva manusia (p<0,05) pada pengamatan menit ke-0, 0,5, 1, 1,5, 2, dan 5. Kemampuan pembasahan saliva buatan mukus lele memiliki perbedaan yang signifikan dibandingkan dengan saliva manusia, sehingga saliva buatan ini memberikan fungsi lubrikatif dan protektif yang tidak terlalu menyerupai saliva manusia.
Universitas Gadjah Mada
2021-12-31
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/62571
10.22146/jfs.62571
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 23, No 2 (2021); 133-136
Jurnal Perikanan Universitas Gadjah Mada; Vol 23, No 2 (2021); 133-136
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/62571/33202
Copyright (c) 2021 Jurnal Perikanan Universitas Gadjah Mada
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/62733
2021-06-30T05:31:13Z
jfs:AQa
Struktur Komunitas Plankton pada Air Kolam Ikan Lele yang Berbeda Warna
Wijayanti, Karunia Adetera Nungki
Murwantoko, Murwantoko
Istiqomah, Indah
Struktur komunitas, plankton, lele, kualitas air
Plankton dalam perairan memiliki peranan yang penting sebagai produsen serta penyuplai nutrisi maupun indikator lingkungan. Struktur komunitas dan faktor pendukung lingkungan berpengaruh terhadap keadaan ekosistem perairan budidaya serta pengaruhnya pada komoditas budidaya. Penelitian ini membahas mengenai struktur komunitas plankton pada air kolam lele yang berbeda warna. Kolam yang digunakan adalah kolam budidaya lele air hijau di Kalasan, cokelat di Prambanan, dan merah di Berbah, Sleman. Parameter kualitas air yang meliputi pH, suhu, bahan organik, dan oksigen terlarut diukur sebanyak 3 kali setiap 2 minggu sekali dan kadar nitrat, nitrit, amonia diukur pada saat awal sampling. Pengambilan sampel plankton dilakukan dengan menggunakan plankton net sebanyak 3 kali setiap 2 minggu sekali. Jenis dan jumlah plankton diamati secara mikroskopis. Penentuan jenis plankton dilakukan dengan membandingkan ciri-ciri yang tampak dengan literatur. Dominansi plankton, diversitas plankton, kepadatan serta pengaruh kualitas air terhadap struktur komunitas plankton dianalisis secara statistik. Hasil pegamatan menunjukan plankton yang mendominansi adalah Chlorophyta dengan nilai indeks diversitas maupun dominansi di semua jenis kolam tergolong rendah-sedang. Berdasarkan uji statistik menunjukkan kualitas air yang berpengaruh terhadap struktur komunitas plankton adalah bahan organik, amonia, dan nitrit. Struktur komunitas plankton pada air kolam berbeda warna menunjukkan terdapat 15 filum yang terdiri dari 32 kelas. Plankton yang dominan pada kolam warna air hijau adalah Microcystis aeruginosa, sedangkan kolam cokelat dan merah adalah Chlorella varigatus. Nilai diversitas dan dominansi pada ketiga warna air cenderung stabil moderat, karena termasuk dalam kategori sedang yang menunjukan kondisi kolam tergolong stabil dan baik untuk budidaya.
Universitas Gadjah Mada
2021-06-30
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/62733
10.22146/jfs.62733
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 23, No 1 (2021); 45-54
Jurnal Perikanan Universitas Gadjah Mada; Vol 23, No 1 (2021); 45-54
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/62733/31687
Copyright (c) 2021 Jurnal Perikanan Universitas Gadjah Mada
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/64072
2022-02-06T08:31:54Z
jfs:ART
Isolasi dan Identifikasi Molekuler Bakteri Proteolitik dari Saluran Pencernaan Ikan Nila (Oreochromis niloticus) yang Dibudidayakan di Kabupaten Banyumas
Nurhafid, Mohammad
Syakuri, Hamdan
Oedjijono, Oedjijono
Listiowati, Emyliana
Ekasanti, Anandita
Nugrayani, Dewi
Pramono, Hendro
Aktivitas proteolitik; bakteri; 16S rDNA; Oreochromis niloticus; saluran pencernaa;
Keberadaan bakteri proteolitik pada komoditas akuakultur penting untuk dipelajari, salah satunya terkait dengan praktek budidaya ikan skala kecil di daerah pedesaan. Penelitian ini bertujuan untuk mengetahui keberadaan dan melakukan identifikasi secara molekuler bakteri proteolitik yang diisolasi dari saluran pencernaan ikan nila (Oreochromis niloticus). Sampel ikan nila diambil dari tiga unit kegiatan akuakultur yang menggunakan pakan berbeda di Kabupaten Banyumas yaitu dari Desa Pandak (dengan probiotik, pakan pellet), Desa Beji (tanpa probiotik, pakan tumbuhan) dan Desa Tambaksogra (dengan probiotik, kombinasi pakan pellet dan tumbuhan). Jumlah bakteri, proporsi bakteri proteolitik, dan indeks aktifitas proteolitik diamati dari usus bagian anterior, middle, dan posterior. Sampel isolat bakteri proteolitik dikelompokkan berdasarkan hasil analisis restriksi 16S rDNA menggunakan software PhyElp. Bakteri dari setiap kelompok diidentifikasi berdasarkan sekuen gen 16S rDNA dengan menggunakan analisis BLAST dan analisis filogenetik. Jumlah bakteri di saluran pencernaan ikan nila dari tiga tempat relatif sama dan cenderung meningkat ke arah posterior. Hasil penelitian menunjukkan ikan nila dari Desa Pandak memiliki proporsi bakteri proteolitik yang lebih tinggi dibandingkan sampel ikan dari Desa Beji dan Tambaksogra. Nilai aktivitas bakteri proteolitik saluran pencernaan ikan nila dari Desa Pandak relatif lebih tinggi dibandingkan dari dua desa lainnya. Bakteri proteolitik dari saluran pencernaan ikan nila dapat dikelompokkan menjadi 15 kelompok berdasarkan polimorfisme hasil digesti fragment gen 16S rDNA. Sampel dari 15 kelompok tersebut memiliki sekuen 16S rDNA yang mirip dengan Pseudomonas aeruginosa (4 isolat), Plesiomonas shigelloides, Escherichia coli, Aeromonas veronii, Klebsiella variicola, Enterobacter ludwigii, Enterobacter hormaechei (2 isolat), Enterobacter cloacae, Bacillus subtilis, Bacillus amyloliquefaciens dan Bacillus sp.
Universitas Gadjah Mada
Lembaga Penelitian dan Pengabdian Masyarakat, Universitas Jenderal Soedirman (Nomor: Kept. 121/UN23.18/PT.01.05/2020) yang diajukan oleh Emyliana Listiowati, Hamdan Syakuri, Dewi Nugrayani, dan Anandita Ekasanti.
2021-12-31
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/64072
10.22146/jfs.64072
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 23, No 2 (2021); 95-105
Jurnal Perikanan Universitas Gadjah Mada; Vol 23, No 2 (2021); 95-105
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/64072/33196
Copyright (c) 2021 Jurnal Perikanan Universitas Gadjah Mada
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/64415
2022-02-06T08:31:54Z
jfs:ART
Analisis Keberlanjutan Pengelolaan Benih Bening Lobster (Puerulus) di Kecamatan Cidaun Kabupaten Cianjur
Djayanti, Desi Dwi
Noor, Trisna Insan
Tridakusumah, Ahmad Choibar
Fisheries
Panulirus spp; Pantai Selatan; pengelolaan
Lobster (Panulirus spp.) merupakan salah satu komoditi unggulan yang bernilai ekonomis tinggi, sehingga menjadi salah satu target tangkapan nelayan. Seiring berjalannya waktu permintaan tidak hanya untuk keperluan konsumsi saja, tetapi juga mencakup benih (Puerulus). Tingginya permintaan dan harga dikhawatirkan akan mengancam keberlanjutan sumberdaya, karena semakin memicu upaya penangkapan. Menyikapi kondisi tersebut, pemerintah membatasi ukuran penangkapan dengan mengeluarkan PERMENKP No.56/2016. Namun pada tahun 2020 aturan tersebut di ganti dengan PERMENKP No.12/2020 yang memberikan izin terhadap penangkapan Puerulus. Tujuan penelitian ini yaitu menganalisis keberlanjutan pengelolaan lobster pasca moratorium kegiatan penangkapan Puerulus di Kecamatan Cidaun Kabupaten Cianjur. Metode penelitian yang digunakan yaitu mix method dengan penentuan jumlah sampel menggunakan Slovin dengan jumlah 79 orang nelayan. Data yang terkumpul dianalisis menggunakan MDS dengan pendekatan Rapfish. Hasil penelitian menunjukan bahwa berdasarkan dimensi ekologi, sosial, teknologi serta hukum dan kelembagaan status pengelolaan sumber daya Lobster di perairan Kecamatan Cidaun Kabupaten Cianjur berada pada kategori kurang berkelanjutan, sementara berdasarkan dimensi ekonomi tergolong kategori cukup berkelanjutan.
Universitas Gadjah Mada
Student Padjdjaran University
2021-12-31
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
MDS
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/64415
10.22146/jfs.64415
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 23, No 2 (2021); 79-87
Jurnal Perikanan Universitas Gadjah Mada; Vol 23, No 2 (2021); 79-87
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/64415/33194
Copyright (c) 2021 Jurnal Perikanan Universitas Gadjah Mada
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/64741
2021-06-30T05:31:13Z
jfs:AQa
The Effect of Zeolite Toward Ammonia (NH3) in Tilapia Rearing Media with Recirculation System
Hasibuan, Saberina
Syafriadiman, Syafriadiman
Syahputra, Muhammad Nandy
Environmental Quality Laboratory Department of Aquaculture Fisheries and Marine Science Faculty, Universitas Riau
Oreochromis niloticus; Zeolite; Ammonia; culture media; filter
Culture of Tilapia (Oreochromis niloticus) with high stocking density and feeding can cause a decrease in water quality due to the accumulation of metabolic waste such as ammonia which is toxic for fish rearing. A zeolite filter is needed which can reduce ammonia levels until it is not harmful to fish survival. This research was conducted in February-April 2020 at the Aquaculture Environmental Quality Laboratory, Fisheries and Marine Faculty of Riau University. The purposed of this study was to determine the effect of using zeolite on Ammonia (NH3) and determine the appropriate dose for Tilapia (Oreochromis niloticus) rearing. The research method was a Completely Randomized Design (CRD) one factor with 4 levels of treatment (P0: Control without the use of filters, P1: Use of zeolite 5.68 g/L, P2: Use of zeolite 11.37 g/L, P3: Use of zeolite 17.05 g/L). The appropriate treatment for Tilapia rearing is P3 (Zeolite 17.05 g/L) with TAN value is 0.2616 mg/L, Ammonia 0.0018 mg/L, TAN reduction is 59%, and Survival Rate of fish is 88.88%. The value of water quality during the study were temperature 27-29 oC, pH 6.7-7.0, and DO 6.2-6.9 mg/L.
Universitas Gadjah Mada
Fisheries and Marine Science Faculty
2021-06-30
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
experiment
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/64741
10.22146/jfs.64741
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 23, No 1 (2021); 55-62
Jurnal Perikanan Universitas Gadjah Mada; Vol 23, No 1 (2021); 55-62
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/64741/31688
https://jurnal.ugm.ac.id/jfs/article/downloadSuppFile/64741/15904
https://jurnal.ugm.ac.id/jfs/article/downloadSuppFile/64741/15905
Copyright (c) 2021 Jurnal Perikanan Universitas Gadjah Mada
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/65832
2022-02-06T08:31:54Z
jfs:ART
Struktur Histologi Insang pada Combtooth blennies (Blenniidae) di Pantai Krakal, Gunung Kidul, Yogyakarta
Zayzda, Muhammad Zuchri
Retnoaji, Bambang
Blenniidae; histologi; pantai Krakal; morfometri; pernapasan;
Blenniidae adalah famili ikan yang ditemukan di ekosistem pesisir seperti zona intertidal. Gunung Kidul memiliki banyak pantai kars dengan kesamaan dalam kondisi dan formasi geologi. Keanekagaman dan histologi Blenniidae di Gunung Kidul, terutama di Pantai Krakal, masih belum banyak dipelajari. Penelitian ini bertujuan untuk mengetahui morfometri serta struktur histologi respirasi anggota famili Blenniidae yang ditemukan di pantai Krakal. Penelitian ini dilakukan di pantai Krakal dengan metode pengambilan sampel bebas. Sampel kemudian dibawa ke Laboratorium Struktur Perkembangan Hewan untuk diukur dan dibedah. Sebanyak 3 spesies dengan masing-masing 5 sampel ditemukan di zona intertidal pantai Krakal. Dari pengamatan morfometrik, ditemukan bahwa Istiblennius edentulus dengan Istiblennius dussumeri memiliki rata-rata rasio morfometri yang berbeda sementara Istiblennius lineatus memiliki rata-rata rasio morfometri yang sama dengan Istiblennius edentulus dan Istiblennius dussumeri. Hasil pengamatan struktur histologis insang tidak menunjukan adanya perbedaan jaringan penyusun insang antar spesies ikan, yang tersusun oleh lamella primer (1), lamella sekunder (2), sel eritrosit (3), sel pilar (4), sel epitel (5), sel mukus (6), dan sel klorit (7). Struktur insang tiap spesies ikan ini sesuai dengan kondisi habitat berupa udara terbuka sehingga dapat memperluas area respirasi dan menyimpan air di dalam insang.
Universitas Gadjah Mada
Laboratorium Struktur Perkembangan Hewan, Fakultas Biologi, Universitas Gadjah Mada.
2021-12-31
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Article; Histology
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/65832
10.22146/jfs.65832
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 23, No 2 (2021); 107-112
Jurnal Perikanan Universitas Gadjah Mada; Vol 23, No 2 (2021); 107-112
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/65832/33198
Copyright (c) 2021 Jurnal Perikanan Universitas Gadjah Mada
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/66232
2022-02-06T08:31:54Z
jfs:ART
Effect of Dried Eucheuma cottonii Stored in Seaweed Storage Device in Its Quality
Al Wazzan, Iwan Malhani
Wullandari, Putri
Fauzi, Ahmat
Post-harvesting; Fisheries Technology
Bunker; CAW; dried E. cottonii; moisture content; impurities
A seaweed storage device in the form of a bunker has been developed by the Indonesian Research Institute for Fisheries Postharvest Mechanization. This study aimed to compare the quality of dried E. cottonii stored in the seaweed storage device and stored in the sacks placed in the room. Based on SNI 2690:2015, dried E. cottonii quality can be determined from its moisture content, impurities, Clean Anhydrous Weed (CAW), and Total Yeast and Mold Counts (TYMC). Moisture content was measured according to CAW, and contaminants were measured respectively according to SNI 01-2354.2-2-2006, SNI 8168:2015, and SNI 8169:2015. The results showed that moisture content of the seaweed stored in the bunker decreased by 27.17%, and that stored in the sacks decreased by 14.77%, signing a more significant weight loss during storage in the bunker. However, seaweed stored in the bunker has lower impurities (1.70±0.13 vs 1.84±0.13%), higher CAW (40.42±2.45 vs 38.75±2.45%), and TYMC (450±70 vs 2500±115.33 cfu/g).
Universitas Gadjah Mada
2021-12-31
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/66232
10.22146/jfs.66232
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 23, No 2 (2021); 137-140
Jurnal Perikanan Universitas Gadjah Mada; Vol 23, No 2 (2021); 137-140
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/66232/33203
Copyright (c) 2021 Jurnal Perikanan Universitas Gadjah Mada
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/67257
2022-06-12T11:45:28Z
jfs:ART
The Development Strategy of Pondokdadap Coastal Fishing Port, Malang Regency, East Java
Ningsih, Cicik Setia
Suherman, Agus
Setiawan, Hendrik Anggi
Management of aquatic resources
Development strategy, CFP Pondokdadap, SWOT analysis.
A successful capture fisheries business requires a fishing port with excellent facilities. This study, therefore, aims to analyze the current facility utilization rate of Pondokdadap, The Coastal Fishing Port (CFP) and formulate a suitable development strategy. The study was conducted using a descriptive survey from January to April 2021. Twenty-four respondents comprising 11 CFP (Coastal Fishing Port) and FAP (Fish Auction Place) employees and 13 fishers and fish traders were obtained using the inclusion criteria. Primary data was collected through structured interviews based on a questionnaire, while secondary data were obtained through literature reviews on books, articles, and journals related to research. Subsequently, an analysis of facility utilization at CFP Pondokdadap was carried out, while a SWOT analysis was performed on the proposed alternative development strategy. Based on the results, the existing physical condition of the facilities is satisfactory, with varying utilization rates. However, the Government and the CFP Pondokdadap management are encouraged to implement other development strategies, for instance, strengthening fisheries competitiveness by maintaining fish quality, optimizing Sempu Island as a natural breakwater and marine aquaculture fisheries, developing a fishery information system, building supporting facilities at CFP Pondokdadap, as well as improving the quality of human resources, apparatus, and fishing communities at CFP Pondokdadap.
Universitas Gadjah Mada
2022-06-03
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/67257
10.22146/jfs.67257
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 24, No 1 (2022); 1-9
Jurnal Perikanan Universitas Gadjah Mada; Vol 24, No 1 (2022); 1-9
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/67257/33911
https://jurnal.ugm.ac.id/jfs/article/downloadSuppFile/67257/17246
Copyright (c) 2022 Jurnal Perikanan Universitas Gadjah Mada
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/68259
2022-12-15T12:50:54Z
jfs:ART
Growth Performance of Silkworms (Tubifex sp.) Cultivated Using a Dry Substrate
Yazid, Mhd
Djunaidah, Iin Siti
Nurhudah, Moch
Absolute biomass; silkworm; dry substrate; population; productivity
Silkworms are one type of live food that has begun to be intensified in their cultivation activities in Indonesia. This study aimed to determine the effect of feeding/dried substrate in different doses on the growth performance of silkworms. The second aim was to determine the appropriate dose of dry substrate for silkworm cultivation. The study used a completely randomized design (CRD) with 4 treatments of dry media at a dose of 114 g/m2 (D10), 228 g/m2 (D20), and 324 g/m2 (D30) dan without media as a control (D0). With 3 replications for each treatment. A silkworm starter was obtained from cultivation for 30 days. The research was conducted at Warung Benih Farm in Depok for 33 days. Data were analyzed using Analysis of Variance (ANOVA) and Duncan's further test with a confidence level of 0.05. The results showed that absolute weight growth, population growth, and the best productivity were obtained in the treatment of substrate addition with a dose of 324 g/m2 (D30) with an absolute biomass growth of 48.67 g, population growth of 59458 individuals, & the productivity of 0.556 g/m2 was/cycle. Most of the water quality observations are in the relatively optimal range.
Universitas Gadjah Mada
2022-12-14
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/68259
10.22146/jfs.68259
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 24, No 2 (2022); 101-107
Jurnal Perikanan Universitas Gadjah Mada; Vol 24, No 2 (2022); 101-107
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/68259/35392
Copyright (c) 2022 Jurnal Perikanan Universitas Gadjah Mada
http://creativecommons.org/licenses/by-sa/4.0
oai:jurnal.ugm.ac.id:article/68351
2022-12-15T12:50:54Z
jfs:ART
Changes in Condition Factor, Hepatosomatic and Gonadosomatic Index of Yellowfin Tuna (Thunnus albacares) in Captivity
Hutapea, Jhon Harianto
Setiadi, Ananto
Gunawan, Gunawan
Fisheries-Waters Resources Managemet
Condition index; cultivation; yellowfin tuna
The necessity for tuna products in the world community continues to increase, while production relies only on catching, thus causing overfishing. Therefore, breeding technology to support tuna farming is fundamental to be developed. Yellowfin tuna farming in Indonesia has been successful in cultivating broodstock. This paper discusses biometric data that changes during cultivation, such as condition factor, hepato and gonadosomatic indexes compared with wild captured. Data were collected from young tuna to broodstock and compared with wild captured such as fork length, body, liver and gonad weight. The condition factor (K) of cultivated tuna (1.5-2.5) was higher compared with wild captured (1.5-2.0). Similarly, the value of cultivated tuna’s hepatosomatic index (HSI) was higher (0.63-1.14). In contrast, the gonadosomatic index (GSI) of wild captured yellowfin tuna was higher (>0.5) compared with cultivated yellowfin tuna in a circular concrete tank (0.4) but lower than that cultivated in a floating net cage (>1.4). Maintenance of broodstock in the tank with a lower GSI value means the number of eggs produced is relatively lower than its natural counterpart. At the same time, the high GSI value of cultivated broodstock in FNC shows better results than wild captured broodstock.
Universitas Gadjah Mada
Pusat Riset Perikanan, Badan Riset dan Sumber Daya Manusia dan Kelautan Perikanan
2022-12-14
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Research
application/pdf
https://jurnal.ugm.ac.id/jfs/article/view/68351
10.22146/jfs.68351
Jurnal Perikanan UGM (Journal of Fisheries Sciences); Vol 24, No 2 (2022); 109-114
Jurnal Perikanan Universitas Gadjah Mada; Vol 24, No 2 (2022); 109-114
2502-5066
0853-6384
eng
https://jurnal.ugm.ac.id/jfs/article/view/68351/35393
Copyright (c) 2022 Jurnal Perikanan Universitas Gadjah Mada
http://creativecommons.org/licenses/by-sa/4.0
c652476a46c239873772b64d79d910dc