{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,22]],"date-time":"2026-09-22T17:50:45Z","timestamp":1790099445255,"version":"4.0.1"},"reference-count":39,"publisher":"American Association for the Advancement of Science (AAAS)","issue":"45","content-domain":{"domain":["www.science.org"],"crossmark-restriction":true},"short-container-title":["Sci. Adv."],"published-print":{"date-parts":[[2025,11,7]]},"abstract":"<jats:p>International trade is a major driver of shark overexploitation. In 2013, five threatened shark species were listed on Appendix II of the Convention on International Trade of Endangered Species to regulate global trade and promote recovery. Once listed, any uncertified, unreported export of these species became illegal. Minimal trade was reported from 2015 to 2021, yet fins from four of these species were common in the world\u2019s largest shark fin hub (Hong Kong) throughout this period, indicating substantial and sustained illegal trade. Seventy three of 90 shark fin\u2013exporting nations (81%) have never reported any trade of these species. Mixed stock analysis of a market sample of fins from one listed species revealed six populations of origin but only three were from regions where trade was reported. Broader application of CITES compliance mechanisms is necessary to combat widespread illegal trade of shark fins and realize the conservation potential of these trade regulations.<\/jats:p>","DOI":"10.1126\/sciadv.adz2821","type":"journal-article","created":{"date-parts":[[2025,11,5]],"date-time":"2025-11-05T18:58:58Z","timestamp":1762369138000},"update-policy":"https:\/\/doi.org\/10.34133\/aaas_crossmark","source":"Crossref","is-referenced-by-count":7,"title":["International trade regulations take a limited bite out of the shark fin trade"],"prefix":"10.1126","volume":"11","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-9414-7385","authenticated-orcid":true,"given":"Diego","family":"Carde\u00f1osa","sequence":"first","affiliation":[{"name":"Department of Biological Sciences, Florida International University, North Miami, FL 33181, USA."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2279-6762","authenticated-orcid":true,"given":"Elizabeth A.","family":"Babcock","sequence":"additional","affiliation":[{"name":"Rosenstiel School of Marine, Atmospheric and Earth Science, University of Miami, Miami, FL 33149, USA."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1867-2553","authenticated-orcid":true,"given":"Stanley K.","family":"Shea","sequence":"additional","affiliation":[{"name":"BLOOM Association, Central, Hong Kong S.A.R., China."},{"name":"The ADM Capital Foundation Ltd, Suite 2405, 9 Queen's Road Central, Hong Kong S.A.R., China."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1981-5085","authenticated-orcid":true,"given":"Huarong","family":"Zhang","sequence":"additional","affiliation":[{"name":"Kadoorie Farm and Botanic Garden, Tai Po, Hong Kong S.A.R., China."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5610-9262","authenticated-orcid":true,"given":"Kevin A.","family":"Feldheim","sequence":"additional","affiliation":[{"name":"Pritzker Laboratory for Molecular Systematics and Evolution, The Field Museum, Chicago, IL 60605, USA."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0005-3683-6939","authenticated-orcid":true,"given":"Feng","family":"Yang","sequence":"additional","affiliation":[{"name":"Kadoorie Farm and Botanic Garden, Tai Po, Hong Kong S.A.R., China."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2161-6694","authenticated-orcid":true,"given":"Stephan W.","family":"Gale","sequence":"additional","affiliation":[{"name":"Kadoorie Farm and Botanic Garden, Tai Po, Hong Kong S.A.R., China."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2163-1832","authenticated-orcid":true,"given":"Daniel","family":"Fernando","sequence":"additional","affiliation":[{"name":"Blue Resources Trust, Colombo 00700, Sri Lanka."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2241-5744","authenticated-orcid":true,"given":"Akshay","family":"Tanna","sequence":"additional","affiliation":[{"name":"Blue Resources Trust, Colombo 00700, Sri Lanka."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Luke","family":"Warwick","sequence":"additional","affiliation":[{"name":"Global Marine Program, Wildlife Conservation Society, Bronx, NY 10460, USA."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Demian","family":"D. 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