The Status, Trends, and Limitations of Philippine Mollusk Production and Trade Based on Available Databases and Publications

John Alberto H Ordinario(1*), Jonathan A. Anticamara(2)

(1) UP Diliman Invertebrate Museum, Institute of Biology, National Science Complex, University of the Philippines-Diliman, Diliman, Quezon City, Philippines 1101; Institute of Environmental Science and Meteorology, University of the Philippines, 1101 Quezon City, Philippines
(2) UP Diliman Invertebrate Museum, Institute of Biology, National Science Complex, University of the Philippines-Diliman, Diliman, Quezon City, Philippines 1101
(*) Corresponding Author


Mollusk trade is vital in many coastal areas and island communities throughout the Philippines because it provides livelihoods, food, and incomes to millions of Filipinos via fisheries (e.g., shellfish fishing and gleaning), shell craft, arts, shell trading and collections, and aquaculture. However, the assessments of the national trends and status of mollusc production and trade in the Philippines are largely non-existent in peer-reviewed literature. The main purpose of this paper is to present and evaluate the status and trends of traded Mollusks in the Philippines based on available online databases and a systematic review of published literature. To date, available databases on Philippine mollusk trade showed an initial increase in traded volume (the 1970s to 2006) but decreased afterward. In contrast, the traded mollusk value continued to generally increase over time (albeit the observed decrease between 2011 and 2016), indicating value increase as mollusk volume decreased. However, there is a great need to (1) resolve many of the obvious inconsistencies in data entries across all the available mollusk trade databases (BFAR, PSA, and CITES) and (2) provide field assessment of the Philippine mollusk trade and the conservation status of all traded mollusk taxa in the country.



Mollusk trade;mollusk fishery;molluscan management;shell industry

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Abarquez, V., Mendez, N. & Galan, G., 2019. Preliminary study on diversity of intertidal gastropods in Barangay Day-asan, Surigao City, Philippines. Ruhuna Journal of Science, 10, pp.18–31. doi: 10.4038/rjs.v10i1.54.

Alati et al., 2020. Mollusc shell fisheries in coastal Kenya: Local ecological knowledge reveals overfishing. Ocean and Coastal Management, 195, 105285. doi: 10.1016/j.ocecoaman.2020.105285.

Alcala, A.C. & Russ, G.R., 2002. Status of Philippine Coral Reef Fisheries. Asian Fisheries Science, 15(2), pp.177–192.

Alves, R., Mota, E. & Dias, T., 2018. Use and Commercialization of Animals as Decoration. In Ethnozoology. pp.261–275. doi: 10.1016/B978-0-12-809913-1.00014-4.

Anticamara, J.A. & Go, K.T.B., 2016. Spatio-Temporal Declines in Philippine Fisheries and its Implications to Coastal Municipal Fishers’ Catch and Income. Frontiers in Marine Science, 3, 21. doi: 10.3389/fmars.2016.00021.

Blundell, A.G. & Mascia, M.B., 2005. Discrepancies in Reported Levels of International Wildlife Trade. Conservation Biology, 19(6), pp.2020–2025. doi: 10.1111/j.1523-1739.2005.00253.x.

Bureau of Fisheries and Aquatic Resources (BFAR), 2018. ‘Philippine Fisheries Profile 2018’, viewed 25 May 2020, from

Cardinale, M., Nugroho, D. & Jonson, P., 2011. Serial depletion of fishing grounds in an unregulated, open access fishery. Fisheries Research, 108, pp.106–111. doi: 10.1016/j.fishres.2010.12.007.

Ciasico et al., 2008. Initial stock assessment of four Strombus species [Mollusca: Gastropoda] in Eastern Samar (Central Philippines) with notes on their fishery. The Philippine Scientist, 43, pp.52-68. doi: 10.3860/psci.v43i0.371.

Clark, C., 2019. A Review of the Global Commercial Cephalopod Fishery, with a Focus on Apparent Expansion, Changing Environments, and Management. Nova Southeastern University.

Convention on International Trade in Endangered Species (CITES) of Wild Fauna and Flora, 2019. ‘CITES Trade Database’, viewed 25 May 2020, from

Cruz, R.A.L. & Lagunzad, C.G.B., 2021. The big picture: Consolidating national government and CITES records of animal trade in the Philippines from 1975 to 2019. Philippine Science Letters, 14, pp.79-100.

De Guzman et al., 2020. Contribution of Gleaning Fisheries to Food Securityand Nutrition of Poor Coastal Communities in the Philippines. Journal of Environmental Science and Management, SI-1, 58-71. doi: 10.47125/jesam/2019_sp1/06.

Dias, T., Neto, N. & Alves, R., 2011. Molluscs in the marine curio and souvenir trade in NE Brazil: Species composition and implications for their conservation and management. Biodiversity and Conservation, 20, pp.2393–2405. doi: 10.1007/s10531-011-9991-5.

Floren, A., 2003. The Philippine Shell Industry with Special Focus on Mactan, Cebu.

Food and Agriculture Organization (FAO), 2020. The State of World Fisheries and Aquaculture 2020, FAO. doi: 10.4060/ca9229en.

Fröcklin et al., 2014. Towards Improved Management of Tropical Invertebrate Fisheries: Including Time Series and Gender. PLoS ONE, 9(3), e91161. doi: 10.1371/journal.pone.0091161.

Galeana-Rebolledo et al., 2018. Socioeconomic Aspects for Coastal Mollusk Commercial Fishing in Costa Chica, Guerrero, México. Natural Resources, 9, pp.229-241. doi: 10.4236/nr.2018.96015.

Hernando, A.M. & Flores, E.E.C., 1981. The Philippines Squid Fishery: A Review. Marine Fisheries Review, p.8.

Iglésias, S.P., Toulhoat, L. & Sellos, D.Y., 2010. Taxonomic confusion and market mislabelling of threatened skates: important consequences for their conservation status. Aquatic Conservation: Marine and Freshwater Ecosystems, 20(3), pp.319–333. doi:

Jing, D., Mu, Y.T. & Mohsin, M., 2018. Evaluation of international competitiveness of China’s marine mollusca trade. Indian Journal of Geo-Marine Sciences, 47(04), p.7.

Kartika, S., 2014. A Study on Indonesian Mollusk Fishery and its Prospect for Economy. International Journal of Marine Science, 4. doi: 10.5376/ijms.2014.04.0005.

Logan et al., 2008. An impediment to consumer choice: Overfished species are sold as Pacific red snapper. Biological Conservation, 141(6), 1591–1599. doi: 10.1016/j.biocon.2008.04.007 10.1016.

Mohsin et al., 2017. Molluscan fisheries in Pakistan: Trends in capture production, utilization, and trade. Indian Journal of Geo-Marine Sciences, 46, 929-935.

Monterey Bay Aquarium, 2017. ‘Common octopus and Big blue octopus’, in Monterey Bay Aquarium Seafood Watch, viewed 25 May 2020, from

Muallil et al., 2014. Status, trends, and challenges in the sustainability of small-scale fisheries in the Philippines: Insights from FISHDA (Fishing Industries’ Support in Handling Decisions Application) model. Marine Policy, 44, pp.212–221. doi: 10.1016/j.marpol.2013.08.0

del Norte-Campos, A., Burgos, L. & Villarta, K., 2019. A Ranked Inventory of Commercially-important Mollusks of Panay, West Central Philippines as a Guide to Prioritize Research. The Philippine Journal of Fisheries, 26(2), pp.119–136. doi: 10.31398/tpjf/26.2.2019-0004.

Ospina-Alvarez et al., 2022. A network analysis of global cephalopod trade. Sci Rep, 12(1), 322. doi: 10.1038/s41598-021-03777-9.

Philippine Statistics Authority, 2015. ‘Foreign Trade Statistics (FTS) of the Philippines 2015’, in Foreign Trade Statistics (FTS) of the Philippines, viewed 25 May 2020,

Robinson, J.E. & Sinovas, P., 2018. Challenges of analyzing the global trade in CITES-listed wildlife. Conservation Biology, 32(5), pp.1203–1206. doi: 10.1111/cobi.13095.

Rodhouse et al., 2014. Environmental Effects on Cephalopod Population Dynamics: Implications for Management of Fisheries. in EAG Vidal (ed.). Advances in Cephalopod Science: Biology, Ecology, Cultivation and Fisheries. Advances in Marine Biology, 67, pp.99-233. doi: 10.1016/B978-0-12-800287-2.00002-0.

Russo, A., 2015. The prevalence of documentation discrepancies in CITES (Convention on the International Trade in Endangered Species of Wild Fauna and Flora) trade data for Appendix I and II species exported out of Africa between the years 2003 and 2012. University of Cape Town.

Salamanca, A. & Pajaro, M., 1996. The utilization of seashells in the Philippines. Traffic Bulletin, 16, pp.61–72.

Salayo, N.D., 2000. International Trade Patterns and Trade Policies in the Philippine Fisheries. p.44.

Tabugo et al., 2013. Some economically important bivalves and gastropods found in the Island of Hadji Panglima Tahil, in the province of Sulu, Philippines. International Research Journal of Biological Sciences, 2(7), pp.30-36

Vito, M., 2019. Diversity and abundance of economically important bivalves in north - western Bohol, Philippines. Journal of Fisheries and Aquatic Science, 6, pp.44–48.


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