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Nearly 75% of the small fins came from small shark species and 58.1% of small species were threatened with extinction. We identified an important CITES listing gap: Trade in 19 small, threatened species, especially from the family Triakidae, is unregulated. In addition, a quarter of small fins come from large sharks, indicating that substantial exploitation of juveniles is occurring and may be affecting fisheries sustainability. Enhanced surveillance of small shark fin trade is essential to ensure effective conservation under emerging trade regulations.<\/jats:p>","DOI":"10.1126\/sciadv.adq6214","type":"journal-article","created":{"date-parts":[[2024,10,16]],"date-time":"2024-10-16T14:00:58Z","timestamp":1729087258000},"update-policy":"https:\/\/doi.org\/10.34133\/aaas_crossmark","source":"Crossref","is-referenced-by-count":15,"title":["Small sharks, big problems: DNA analysis of small fins reveals trade regulation gaps and burgeoning trade in juvenile sharks"],"prefix":"10.1126","volume":"10","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, 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 and Atmospheric 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, Special Administrative Region of China."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Huarong","family":"Zhang","sequence":"additional","affiliation":[{"name":"Kadoorie Farm and Botanic Garden, Tai Po, Hong Kong, Special Administrative Region of 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\/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, Special Administrative Region of China."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"DeEtta","family":"Mills","sequence":"additional","affiliation":[{"name":"Department of Biological Sciences, Florida International University, North Miami, FL, USA."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Demian D.","family":"Chapman","sequence":"additional","affiliation":[{"name":"Center for Shark Research, Mote Marine Laboratory, Sarasota, FL 34236, USA."}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"221","reference":[{"key":"e_1_3_1_2_2","doi-asserted-by":"publisher","DOI":"10.1038\/s41467-022-35091-x"},{"key":"e_1_3_1_3_2","doi-asserted-by":"publisher","DOI":"10.1038\/s41586-020-03173-9"},{"key":"e_1_3_1_4_2","doi-asserted-by":"publisher","DOI":"10.1111\/conl.12910"},{"key":"e_1_3_1_5_2","doi-asserted-by":"publisher","DOI":"10.1577\/1548-8446(2000)025<0009:MOSATR>2.0.CO;2"},{"key":"e_1_3_1_6_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1523-1739.2005.00247.x"},{"key":"e_1_3_1_7_2","doi-asserted-by":"publisher","DOI":"10.1111\/cobi.13043"},{"key":"e_1_3_1_8_2","doi-asserted-by":"publisher","DOI":"10.1111\/conl.12457"},{"key":"e_1_3_1_9_2","doi-asserted-by":"publisher","DOI":"10.1038\/s41598-020-69555-1"},{"key":"e_1_3_1_10_2","doi-asserted-by":"publisher","DOI":"10.1038\/s41598-018-34663-6"},{"key":"e_1_3_1_11_2","first-page":"48","article-title":"Visual identification of fins from common elasmobranch in the Northwest Atlantic Ocean","volume":"643","author":"Abercrombie D.","year":"2013","unstructured":"D. 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