دورية أكاديمية
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DNA barcoding continues to identify endangered species of shark sold as food in a globally significant shark fin trade hub.

التفاصيل البيبلوغرافية
العنوان: DNA barcoding continues to identify endangered species of shark sold as food in a globally significant shark fin trade hub.
المؤلفون: Selena Shen KL; Yale-NUS College, National University of Singapore, Singapore., Cheow JJ; Yale-NUS College, National University of Singapore, Singapore., Cheung AB; Yale-NUS College, National University of Singapore, Singapore., Koh RJR; Yale-NUS College, National University of Singapore, Singapore., Koh Xiao Mun A; Yale-NUS College, National University of Singapore, Singapore., Lee YN; Yale-NUS College, National University of Singapore, Singapore., Lim YZ; Yale-NUS College, National University of Singapore, Singapore., Namatame M; Yale-NUS College, National University of Singapore, Singapore., Peng E; Yale-NUS College, National University of Singapore, Singapore.; Yale University, New Haven, CT, USA., Vintenbakh V; Yale-NUS College, National University of Singapore, Singapore., Lim EXY; Yale-NUS College, National University of Singapore, Singapore., Wainwright BJ; Yale-NUS College, National University of Singapore, Singapore.; Department of Biological Sciences, National University of Singapore, Singapore.
المصدر: PeerJ [PeerJ] 2024 Jan 03; Vol. 12, pp. e16647. Date of Electronic Publication: 2024 Jan 03 (Print Publication: 2024).
نوع المنشور: Journal Article
اللغة: English
بيانات الدورية: Publisher: PeerJ Inc Country of Publication: United States NLM ID: 101603425 Publication Model: eCollection Cited Medium: Internet ISSN: 2167-8359 (Electronic) Linking ISSN: 21678359 NLM ISO Abbreviation: PeerJ Subsets: MEDLINE
أسماء مطبوعة: Original Publication: Corte Madera, CA : PeerJ Inc.
مواضيع طبية MeSH: Endangered Species* , Sharks*/genetics, Animals ; Conservation of Natural Resources ; DNA Barcoding, Taxonomic ; Fisheries ; Seafood ; DNA ; Heavy Metal Poisoning
مستخلص: Shark fins are a delicacy consumed throughout Southeast Asia. The life history characteristics of sharks and the challenges associated with regulating fisheries and the fin trade make sharks particularly susceptible to overfishing. Here, we used DNA barcoding techniques to investigate the composition of the shark fin trade in Singapore, a globally significant trade hub. We collected 505 shark fin samples from 25 different local seafood and Traditional Chinese Medicine shops. From this, we identified 27 species of shark, three species are listed as Critically Endangered, four as Endangered and ten as Vulnerable by the International Union for Conservation of Nature (IUCN). Six species are listed on CITES Appendix II, meaning that trade must be controlled in order to avoid utilization incompatible with their survival. All dried fins collected in this study were sold under the generic term "shark fin"; this vague labelling prevents accurate monitoring of the species involved in the trade, the effective implementation of policy and conservation strategy, and could unwittingly expose consumers to unsafe concentrations of toxic metals. The top five most frequently encountered species in this study are Rhizoprionodon acutus, Carcharhinus falciformis, Galeorhinus galeus, Sphyrna lewini and Sphyrna zygaena . Accurate labelling that indicates the species of shark that a fin came from, along with details of where it was caught, allows consumers to make an informed choice on the products they are consuming. Doing this could facilitate the avoidance of species that are endangered, and similarly the consumer can choose not to purchase species that are documented to contain elevated concentrations of toxic metals.
Competing Interests: The authors declare no conflict of interest.
(© 2024 Selena Shen et al.)
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فهرسة مساهمة: Keywords: CITES; Conservation; IUCN; Mislabelling; Seafood; Singapore
المشرفين على المادة: 9007-49-2 (DNA)
تواريخ الأحداث: Date Created: 20240108 Date Completed: 20240109 Latest Revision: 20240109
رمز التحديث: 20240109
مُعرف محوري في PubMed: PMC10771092
DOI: 10.7717/peerj.16647
PMID: 38188178
قاعدة البيانات: MEDLINE
الوصف
تدمد:2167-8359
DOI:10.7717/peerj.16647