Indo‐Pacific origins of silky shark fins in major shark fin markets highlights supply chains and management bodies key for conservation
Abstract The silky shark is the second most common shark in Southeast Asia's dried fin markets and is managed in the Atlantic Ocean by the International Commission for the Conservation of Atlantic Tuna (ICCAT) and by three Indo‐Pacific regional fisheries management organizations (RMFOs). The In...
| Main Authors: | , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2021-05-01
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| Series: | Conservation Letters |
| Subjects: | |
| Online Access: | https://doi.org/10.1111/conl.12780 |
| _version_ | 1819106750024908800 |
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| author | Diego Cardeñosa Andrew T. Fields Elizabeth Babcock Stanley K. H. Shea Kevin A. Feldheim Derek W. Kraft Melanie Hutchinson Maria A. Herrera Susana Caballero Demian D. Chapman |
| author_facet | Diego Cardeñosa Andrew T. Fields Elizabeth Babcock Stanley K. H. Shea Kevin A. Feldheim Derek W. Kraft Melanie Hutchinson Maria A. Herrera Susana Caballero Demian D. Chapman |
| author_sort | Diego Cardeñosa |
| collection | DOAJ |
| description | Abstract The silky shark is the second most common shark in Southeast Asia's dried fin markets and is managed in the Atlantic Ocean by the International Commission for the Conservation of Atlantic Tuna (ICCAT) and by three Indo‐Pacific regional fisheries management organizations (RMFOs). The International Commission for the Conservation of Atlantic Tuna reports ∼ 7% of global silky landings but there is a moratorium on the export of their fins. During a 4‐year period (2014–2017) we used genetic differentiation observed between Atlantic and Indo‐Pacific silky sharks to assess the contribution of Atlantic individuals to fins randomly obtained in the two largest shark fin markets in the world, Hong Kong and Guangzhou, China (N = 604). We did not detect any Atlantic fins in either market despite robust sampling effort with an estimated Indo‐Pacific contribution of 99.8% to these markets. These findings indicate that supply chains for silky shark fins in Hong Kong and Guangzhou primarily originate in the Indo‐Pacific and are mainly under the purview of three Regional Fisheries Management Organizations. Our results are consistent with the possibility that ICCAT parties have achieved high compliance with the ban on silky sharks. We suggest research and monitoring improvements that could enhance our understanding of the global trade of silky sharks and enable better fisheries management. |
| first_indexed | 2024-12-22T02:43:06Z |
| format | Article |
| id | doaj.art-2a366bfdd56d4d27b23f364791b38c02 |
| institution | Directory Open Access Journal |
| issn | 1755-263X |
| language | English |
| last_indexed | 2024-12-22T02:43:06Z |
| publishDate | 2021-05-01 |
| publisher | Wiley |
| record_format | Article |
| series | Conservation Letters |
| spelling | doaj.art-2a366bfdd56d4d27b23f364791b38c022022-12-21T18:41:35ZengWileyConservation Letters1755-263X2021-05-01143n/an/a10.1111/conl.12780Indo‐Pacific origins of silky shark fins in major shark fin markets highlights supply chains and management bodies key for conservationDiego Cardeñosa0Andrew T. Fields1Elizabeth Babcock2Stanley K. H. Shea3Kevin A. Feldheim4Derek W. Kraft5Melanie Hutchinson6Maria A. Herrera7Susana Caballero8Demian D. Chapman9School of Marine and Atmospheric Science Stony Brook University New York USASchool of Marine and Atmospheric Science Stony Brook University New York USARosenstiel School of Marine and Atmospheric Science, Department of Marine Biology and Ecology University of Miami Miami Florida USABLOOM Association, c/o ADMCF Hong KongPritzker Laboratory for Molecular Systematics and Evolution The Field Museum Chicago Illinois USAHawai‘i Institute of Marine Biology University of Hawai‘i Kane‘ohe Hawaii USAHawai‘i Institute of Marine Biology University of Hawai‘i Kane‘ohe Hawaii USADepartamento de Ciencias Naturales y Matemáticas Pontificia Universidad Javeriana Cali ColombiaLaboratorio de Ecología Molecular de Vertebrados Acuáticos – LEMVA Departamento de Ciencias Biológicas Universidad de Los Andes Bogotá ColombiaDepartment of Biological Sciences Florida International University North Miami Florida USAAbstract The silky shark is the second most common shark in Southeast Asia's dried fin markets and is managed in the Atlantic Ocean by the International Commission for the Conservation of Atlantic Tuna (ICCAT) and by three Indo‐Pacific regional fisheries management organizations (RMFOs). The International Commission for the Conservation of Atlantic Tuna reports ∼ 7% of global silky landings but there is a moratorium on the export of their fins. During a 4‐year period (2014–2017) we used genetic differentiation observed between Atlantic and Indo‐Pacific silky sharks to assess the contribution of Atlantic individuals to fins randomly obtained in the two largest shark fin markets in the world, Hong Kong and Guangzhou, China (N = 604). We did not detect any Atlantic fins in either market despite robust sampling effort with an estimated Indo‐Pacific contribution of 99.8% to these markets. These findings indicate that supply chains for silky shark fins in Hong Kong and Guangzhou primarily originate in the Indo‐Pacific and are mainly under the purview of three Regional Fisheries Management Organizations. Our results are consistent with the possibility that ICCAT parties have achieved high compliance with the ban on silky sharks. We suggest research and monitoring improvements that could enhance our understanding of the global trade of silky sharks and enable better fisheries management.https://doi.org/10.1111/conl.12780Carcharhinus falciformisgenetic trackingGuangzhouHong KongICCATinternational shark trade |
| spellingShingle | Diego Cardeñosa Andrew T. Fields Elizabeth Babcock Stanley K. H. Shea Kevin A. Feldheim Derek W. Kraft Melanie Hutchinson Maria A. Herrera Susana Caballero Demian D. Chapman Indo‐Pacific origins of silky shark fins in major shark fin markets highlights supply chains and management bodies key for conservation Conservation Letters Carcharhinus falciformis genetic tracking Guangzhou Hong Kong ICCAT international shark trade |
| title | Indo‐Pacific origins of silky shark fins in major shark fin markets highlights supply chains and management bodies key for conservation |
| title_full | Indo‐Pacific origins of silky shark fins in major shark fin markets highlights supply chains and management bodies key for conservation |
| title_fullStr | Indo‐Pacific origins of silky shark fins in major shark fin markets highlights supply chains and management bodies key for conservation |
| title_full_unstemmed | Indo‐Pacific origins of silky shark fins in major shark fin markets highlights supply chains and management bodies key for conservation |
| title_short | Indo‐Pacific origins of silky shark fins in major shark fin markets highlights supply chains and management bodies key for conservation |
| title_sort | indo pacific origins of silky shark fins in major shark fin markets highlights supply chains and management bodies key for conservation |
| topic | Carcharhinus falciformis genetic tracking Guangzhou Hong Kong ICCAT international shark trade |
| url | https://doi.org/10.1111/conl.12780 |
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