The fishing and illegal trade of the angelshark: DNA barcoding against misleading identifications

Bunholi, Ingrid Vasconcellos; Ferrette, Bruno Lopes da Silva; Biasi, Juliana Beltramin De; Magalhães, Carolina de Oliveira; Rotundo, Matheus Marcos; Oliveira, Cláudio; Foresti, Fausto; Mendonça, Fernando Fernandes

doi:10.1016/j.fishres.2018.05.018

Cited by 48 publications

(31 citation statements)

References 41 publications

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“…DNA barcoding has been a promising tool for the identification of species being trade (Staffen et al 2017;Bunholi et al 2018;Feitosa et al 2018). However, the methodology, besides being expensive, requires very specific and contaminationfree protocols which is often difficult to perform in the field.…”

Section: Discussionmentioning

confidence: 99%

Does legislation affect elasmobranch conservation and research in Brazil? A case study from Paraná State

Wosnick¹,

Prado²,

Giareta³

et al. 2020

Rev. Nordestina Biol.

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In Brazil, regulations for fishing for elasmobranchs are scarce, as well as insufficient monitoring and management. The first catch regulation for the group was published in 1998 (IBAMA No. 121/98). Despite the ban on finning, the legislation provides legal support for evisceration and decapitation prior to landing. Such practices have become particularly problematic for proper monitoring since decharacterization impairs the correct identification of species. In addition, processing is detrimental to research, as many studies rely on sampling of biological material (e.g., blood), posing an additional challenge for researchers using commercial fishing animals for scientific purposes. This study aimed to characterize the frequency of this practice in a representative artisanal fishing community in the fishing of elasmobranchs. The three years of monitoring show that landing patterns of gutted and beheaded animals are influenced by the species caught and the catch volumes of the day. In addition, endangered species protected by legislation were mostly landed already processed. We discuss the findings focusing on the need to revise the legal framework for the commercial landing of elasmobranchs and possible promising ways to address this challenge.

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Section: Discussionmentioning

confidence: 99%

Does legislation affect elasmobranch conservation and research in Brazil? A case study from Paraná State

Wosnick¹,

Prado²,

Giareta³

et al. 2020

Rev. Nordestina Biol.

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“…This unsustainable fisheries situation is likely to stay unchanged or even escalate as unrestricted fishing continues without proper regulation, increasing the imminent risk of extinction for these species [69,70,72]. Although Brazilian law prohibits the capture, commercialization, and trade of many elasmobranch species, they are still illegally captured, landed, and traded [26,28].…”

Section: Discussionmentioning

confidence: 99%

“…In the last few years, several studies in Brazil have developed and implemented molecular markers to identified elasmobranchs [25,26,89,90]. However, overall, a few studies have been focused on batoids [28,77,91].…”

Section: Discussionmentioning

confidence: 99%

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DNA Barcode Reveals the Bycatch of Endangered Batoids Species in the Southwest Atlantic: Implications for Sustainable Fisheries Management and Conservation Efforts

Ferrette

Domingues

Rotundo

et al. 2019

Genes

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Today, elasmobranchs are one the most threatened vertebrate groups worldwide. In fact, at least 90% of elasmobranch species are listed in the International Union for Conservation of Nature (IUCN) Red List, while more than 40% are data-deficient. Although these vertebrates are mainly affected by unsustainable fishery activities, bycatch is also one of the major threats to sharks and batoids worldwide, and represents a challenge for both sustainable fishery management and for biodiversity and conservational efforts. Thus, in this study, DNA barcode methodology was used to identify the bycatch composition of batoid species from small-scale industrial fisheries in the southwest Atlantic and artisanal fisheries from southeast Brazil. A total of 228 individuals belonging to four Chondrichthyes orders, seven families, and at least 17 distinct batoid species were sequenced; among these individuals, 131 belonged to species protected in Brazil, 101 to globally threatened species, and some to species with trade restrictions provided by Appendix II of the Convention on International Trade in Endangered Species (CITES). These results highlight the impacts on marine biodiversity of bycatch by small-scale industrial and unmanaged artisanal fisheries from the southwest Atlantic, and support the implementation of DNA-based methodologies for species-specific identification in data-poor fisheries as a powerful tool for improving the quality of fisheries’ catch statistics and for keeping precise bycatch records.

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“…It has many advantages including life stage, product and species identification, and even system level phylogeographic resolution, with very few disadvantages [e.g. see reviews in [5][6][7][8][9][10][11][12][13][14][15]. The aim of this study is to compile a reference library for the identification of species (e.g.…”

Section: Introductionmentioning

confidence: 99%

DNA Barcoding Results for Some Southern African Elephantfish, Guitarfish, Rattails, Rays, Sharks and Skates

Bank¹

2019

IJOAC

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Sharks and their fins have been targeted increasingly. Fishermen can sell fins for a much higher price than they are able to sell shark meat; shark fin soup is an expensive delicacy. This results in a wasteful and inhumane practice of finning (fins are cut off sharks that are often still alive). Countries such as South Africa have banned finning. This study of two out group species (bony fishes), species from the subclasses Elasmobranchii (rays, sharks and skates) and Holocephali (elephantfish and rattails) indicate the individuals' phylogenetic relationships for the first time. Twenty species from 17 genera and 13 families were analysed and all the individuals have never been DNA barcoded in the HVDBE project. It reveals most of the groups of fishes to be monophyletic (as also reported in previous studies, but for different individuals and mostly other species). However, the Elasmobranchii are polyphyletic. Average K2P intraspecies distances between the fishes range from zero to 14.65%. The focus of this study is on the correct identification of the individuals, contributing to the DNA sequence library for use in species identification; it can be used for law enforcement (i.e. even for individuals lacking diagnostic body parts).

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The fishing and illegal trade of the angelshark: DNA barcoding against misleading identifications

Cited by 48 publications

References 41 publications

Does legislation affect elasmobranch conservation and research in Brazil? A case study from Paraná State

Does legislation affect elasmobranch conservation and research in Brazil? A case study from Paraná State

DNA Barcode Reveals the Bycatch of Endangered Batoids Species in the Southwest Atlantic: Implications for Sustainable Fisheries Management and Conservation Efforts

DNA Barcoding Results for Some Southern African Elephantfish, Guitarfish, Rattails, Rays, Sharks and Skates

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