DNA barcoding reveals endangered and protected elasmobranchs in Tanzanian fish markets

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dc.contributor.authorRumisha, Cyrus
dc.contributor.authorSimwanza, Rehema J.
dc.contributor.authorNehemia, Alex
dc.contributor.authorMdegela, Robinson H.
dc.contributor.authorKochzius, Marc
dc.date.accessioned2025-07-11T15:07:43Z
dc.date.available2025-07-11T15:07:43Z
dc.date.issued2023
dc.descriptionJournal Article
dc.description.abstractWestern Indian Ocean countries have banned elasmobranch finning and enacted legislation to of Marine Science 22(1): 57-65protect endangered elasmobranchs, however finned and morphologically deformed specimens [doi: 10.4314/wiojms.v22i1.6]are still landed and traded on Tanzanian fish markets. Such specimens are difficult to identify Received:morphologically, and it is possible that protected elasmobranchs are among these. This study September 19, 2022used DNA barcoding to uncover protected elasmobranchs in 102 specimens traded on Tan- Accepted:zanian fish markets. The sampled specimens revealed 23 elasmobranch species, 12 of which April 04, 2023(52.1 %) were classified as endangered (EN) or critically endangered (CR) on the IUCN Red List. Published:Three of the identified species (great hammerhead Sphyrna mokarran, oceanic whitetip shark June 16, 2023Carcharhinus longimanus, and pelagic thresher Alopias pelagicus) are protected by Tanzanian laws. Copyright:Hence, it is advised that steps be taken to strengthen law enforcement at landing sites and fish Owned by the journal.markets in the country. Furthermore, the Third Schedule of Fisheries (Amendment) Regula- The articles are open accesstions of 2009 should be updated to include 11 EN and CR elasmobranchs that are not on the list. articles distributed underAdditionally, national and regional elasmobranch conservation plans should be developed to the terms and conditions of the Creative Commons Attribution (CC BY 4.0) licence. prevent the exploitation of endangered elasmobranchs.
dc.identifier.citationRumisha C, Simwanza RJ, Nehemia A, Mdegela RH, Kochzius M (2023) DNA barcoding reveals endangered and protected elasmobranchs in Tanzanian fish markets. Western Indian Ocean Journal Abstract Western Indian Ocean countries have banned elasmobranch finning and enacted legislation to of Marine Science 22(1): 57-65protect endangered elasmobranchs, however finned and morphologically deformed specimens [doi: 10.4314/wiojms.v22i1.6]
dc.identifier.urihttps://www.suaire.sua.ac.tz/handle/123456789/6801
dc.language.isoen
dc.publisherWestern Indian Ocean Journal of Marine Science
dc.relation.ispartofseriesWIO Journal of Marine Science 22 (1) 2023 57-65
dc.subjectDNA barcoding
dc.subjectcytochrome c oxidase subunit I (COI) gene
dc.subjectillegal trade
dc.subjectsharks rumisha@sua.ac.tzand rays
dc.subjectendangered elasmobranch
dc.subjectEast Africa
dc.titleDNA barcoding reveals endangered and protected elasmobranchs in Tanzanian fish markets
dc.typeArticle

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