2021
DOI: 10.3389/fmars.2021.769908
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Intensive Commercialization of Endangered Sharks and Rays (Elasmobranchii) Along the Coastal Amazon as Revealed by DNA Barcode

Abstract: Elasmobranchs represent a well-defined group, composed of about 1,150 species inhabiting diverse aquatic environments. Currently, several of these species have been classified as threaten due to overexploitation. Therefore, we used DNA barcode to identify traded species of sharks and stingrays in the municipality of Bragança (Amazon coastal region), a major fishery landing site in northern Brazil. We collected a total of 127 samples labeled into 24 commercial nomenclatures over 1-year period. Twenty species we… Show more

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Cited by 6 publications
(4 citation statements)
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“…The use of molecular genetics as a tool in forensics and for the certification of commercial products has proven to be highly efficient in solving fraud cases or substituting seafood products [ 7 , 53 ]. For instance, several reports based on genetic data of commercialized fish products have identified endangered species [ 7 , 54 ], providing helpful information about the illegal trade of species threatened with extinction [ 55 ].…”
Section: Discussionmentioning
confidence: 99%
“…The use of molecular genetics as a tool in forensics and for the certification of commercial products has proven to be highly efficient in solving fraud cases or substituting seafood products [ 7 , 53 ]. For instance, several reports based on genetic data of commercialized fish products have identified endangered species [ 7 , 54 ], providing helpful information about the illegal trade of species threatened with extinction [ 55 ].…”
Section: Discussionmentioning
confidence: 99%
“…In an analysis of sharks sold in the fish market in Braganca, an important fishing port in Parástate, Martins et al (2021) identified 11 taxa of the orders Orectolobiformes and Carcharhiniformes, of which, eight are classified as endangered. Clearly, then, the generic classification of catches by their vernacular names does not reflect the true diversity of the impacted fauna, and limit the more effective analysis of the dynamics of existing stocks and their response to fishing pressure, whether targeted specifically or indirectly, as bycatch (Davidson et al, 2016).…”
Section: Discussionmentioning
confidence: 99%
“…Since then, continuous efforts have been made to monitor this practice throughout the Brazilian territory. Through DNA barcoding, the labeling of threatened elasmobranchs as cação (i.e., the common name used in Brazil to describe any commercially caught shark and, in some cases, rays) or other related terms have been identified in southern (Staffen et al 2017; Almerón‐Souza et al 2018; Bernardo et al 2020; Cruz et al 2021), northeastern (Feitosa et al 2018; Martins et al 2021), and northern (Palmeira et al 2013) Brazil. Furthermore, the sale of teleost fish with lesser commercial value labeled as cação was also reported, mainly due to the growing domestic demand for elasmobranch products (Calegari et al 2019).…”
Section: Fish Mislabeling: a Global Issuementioning
confidence: 99%