Commercialization of a critically endangered species (largetooth sawfish, Pristis perotteti) in fish markets of northern Brazil: Authenticity by DNA analysis

Palmeira, Carlos André Melo; Rodrigues‐Filho, Luis Fernando da Silva; Sales, João Bráullio de Luna; Vallinoto, Marcelo; Schneider, Horácio; Sampaio, Iracilda

doi:10.1016/j.foodcont.2013.04.017

Cited by 67 publications

(36 citation statements)

References 13 publications

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“…Their distribution seems to be restricted to northern areas of the country (Palmeira et al 2013), where viable populations of sawfishes have been reported (Burgess et al 2009, Charvet & Faria 2014. Fishing of both species is prohibited by Brazilian legislation (IN 05, MMA 2004, www.…”

Section: Introductionmentioning

confidence: 99%

Sawfish (Pristidae) records along the Eastern Amazon coast

Feitosa¹,

Martins²,

Nunes³

2017

Endang. Species. Res.

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Sawfishes are the most endangered cartilaginous fishes on the planet. Their external morphology facilitates entanglement in fishing nets and their K-selected life history hinders the recovery of exploited populations. The Eastern Amazon coast (EAC) is known to be an area where sawfishes occur in Brazil, but few studies have been conducted in the area to better understand their biology and ecology. The present study reports sawfish captures along the coast of Brazil's second largest state. Data were collected from interviews with fishermen, a literature review, and media reports. In total, 23 captures were recorded between 1984 and 2016. Records include adults, a pregnant female with near-term embryos, juveniles, and young-of-the-year specimens. Most catches were reported in the Canal do Navio, an area under strong human pressure. Sawfish saws are valuable items and, for many anglers in precarious economic and social situations, high market prices eclipse the fishing prohibitions laid down under federal laws. Urgent research is required to understand sawfishes' life history, identify their critical habitats, and effectively manage and conserve these species along the EAC.

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Section: Introductionmentioning

confidence: 99%

Sawfish (Pristidae) records along the Eastern Amazon coast

Feitosa¹,

Martins²,

Nunes³

2017

Endang. Species. Res.

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“…Although it is positive that laws protecting P. pristis already exist in the countries identified in this study as the areas with the largest remaining populations of the species (Brazil and Nicaragua), enforcement is still a critical problem (Charvet‐Almeida et al ., ; Melo Palmeira et al ., ). Although protective laws are the first step in the conservation of a species, more conservation measures should follow in order to achieve the desired recovery of a slow‐growing species such as P. pristis .…”

Section: Discussionmentioning

confidence: 99%

Status and the potential for extinction of the largetooth sawfish Pristis pristis in the Atlantic Ocean

Fernandez‐Carvalho

Imhoff

Faria

et al. 2013

Aquatic Conservation

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Sawfishes currently are among the most threatened elasmobranchs in the world. Only two species inhabit Atlantic waters: the largetooth sawfish (Pristis pristis) and the smalltooth sawfish (Pristis pectinata), both having suffered dramatic declines in their ranges. The goal of this study was to evaluate the status of P. pristis in the Atlantic, and estimate local extinction risk based on historical and recent occurrence records. In order to accomplish these goals, a thorough search for historical and recent records of P. pristis in the Atlantic was conducted, by reviewing scientific and popular literature, museum specimens, and contacting regional scientists from the species’ historical range. In total, 801 P. pristis records (1830–2009) document its occurrence in four major regions in the Atlantic: USA (n = 41), Mexico and Central America (n = 535), South America (n = 162), and West Africa (n = 48). Locality data were not available for 15 records. Historical abundance centres were the Colorado‐San Juan River system in Nicaragua and Costa Rica (and secondarily Lake Izabal of Guatemala), the Amazon estuary, and coastal Guinea‐Bissau. Currently, the species faces drastic depletion throughout its entire former range and centres of abundance. It appears to have been extirpated from several areas. The probability of extinction was highest in the USA, northern South America (Colombia to Guyane), and southern West Africa (Cameroon to Namibia). Currently, the Amazon estuary appears to have the highest remaining abundance of P. pristis in the Atlantic, followed by the Colorado–San Juan River system in Nicaragua and Costa Rica and the Bissagos Archipelago in Guinea Bissau. Therefore the protection of these populations is crucial for the preservation and recovery of the species. Copyright © 2013 John Wiley & Sons, Ltd.

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“…The reliable regulation and management of fisheries depends on the adequate identification of the target species and their byproducts. The incorrect identification of fishery products raises a number of concerns, from both economic (fraud) and environmental perspectives, i.e., the management of stocks, due to the reduction in public confidence in the system responsible for the regulation of the fishery industry, and the prevention of the illegal exploitation of protected species (Ogden 2008;Melo Palmeira et al, 2013). In this context, genetic markers capable of discriminating E. itajara represent a valuable tool for the regulation of the fishery industry, and the establishment of a reliable system for the application of the legislation prohibiting the commercial exploitation of this species.…”

Section: Discussionmentioning

confidence: 99%

“…Molecular markers used in the multiplex fingerprinting technique for the authentication, control, and inspection of fishery stocks are based on the design of specific oligonucleotides and markers derived from the sequencebased amplification of the 5S, 12S, 18S (Asensio, 2008, Asensio et al, 2009, 16S (Ulrich et al, 2013), Cyt b (Melo Palmeira et al, 2013), and COI genes , as well as fragment length polymorphisms, RFLPs (Paine et al 2007;Torres et al 2013) or even nuclear markers, such as ITS 2 (Feldheim et al, 2010), SNPs (Torres et al, 2013) and microsatellites (Rodrigues et al, 2011), and realtime PCR techniques (Trotta et al, 2005). The COI gene is a highly effective and reliable tool for the diagnosis of the authenticity of fishery products (Veneza et al, 2014), and the multiplex PCR technique has proven especially effective for the detection of endangered species De-Franco et al, 2010;Alexandre de-Franco et al, 2012).…”

Section: Discussionmentioning

confidence: 99%

Molecular identification of Atlantic goliath grouper Epinephelus itajara (Lichtenstein, 1822) (Perciformes: Epinephelidae) and related commercial species applying multiplex PCR

et al. 2016

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The Atlantic goliath grouper, Epinephelus itajara, is a critically endangered species, threatened by illegal fishing and the destruction of its habitats. A number of other closely related grouper species found in the western Atlantic are also fished intensively. While some countries apply rigorous legislation, illegal harvesting followed by the falsification of fish products, which impedes the correct identification of the species, is a common practice, allowing the catch to be marketed as a different grouper species. In this case, molecular techniques represent an important tool for the monitoring and regulation of fishery practices, and are essential for the forensic identification of a number of different species. In the present study, species-specific primers were developed for the Cytochrome Oxidase subunit I gene, which were applied in a multiplex PCR for the simultaneous identification of nine different species of Epinephelidae: Epinephelus itajara, E. quinquefasciatus, E. morio, Hyporthodus flavolimbatus, H. niveatus, Mycteroperca acutirostris, M. bonaci, M. marginata, and M. microlepis.Multiplex PCR is a rapid, reliable and cost-effective procedure for the identification of commercially-valuable endangered fish species, and may represent a valuable tool for the regulation and sustainable management of fishery resources.O mero, Epinephelus itajara, encontra-se criticamente ameaçado, resultado da pesca ilegal e destruição dos habitas. Filogeneticamente relacionadas a este táxon encontram-se garoupas que atualmente são intensamente pescadas no Atlântico Oeste. Apesar de leis mais restritivas aplicadas em alguns países, a captura ilegal com a descaracterização morfológica é uma prática comum que impossibilita a identificação correta da espécie permitindo que seja comercializada como garoupas, badejos ou chernes. A este respeito, técnicas moleculares representam ferramentas importantes para o monitoramento e fiscalização da pesca, provando ser essencial, na identificação forense de diversas espécies. Primers espécie-específicos foram desenvolvidos com base no gene Citocromo Oxidase subunidade I que aplicados em PCR-Multiplex possibilitam a identificação simultânea de nove espécies Epinephelidae: Epinephelus itajara, E. quinquefasciatus, E. morio, Hyporthodus flavolimbatus, H. niveatus, Mycteroperca acutirostris, M. bonaci, M. marginata e M. microlepis. A identificação via PCR multiplex de espécies de peixes ameaçadas e comercialmente importantes é um método rápido, prático, seguro e de baixo custo, que poderá ser útil o controle do uso e manejo sustentável de recursos pesqueiros.

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Commercialization of a critically endangered species (largetooth sawfish, Pristis perotteti) in fish markets of northern Brazil: Authenticity by DNA analysis

Cited by 67 publications

References 13 publications

Sawfish (Pristidae) records along the Eastern Amazon coast

Sawfish (Pristidae) records along the Eastern Amazon coast

Status and the potential for extinction of the largetooth sawfish Pristis pristis in the Atlantic Ocean

Molecular identification of Atlantic goliath grouper Epinephelus itajara (Lichtenstein, 1822) (Perciformes: Epinephelidae) and related commercial species applying multiplex PCR

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