Population Structure of Aetobatus narinari (Myliobatiformes) Caught by the Artisanal Fishery in Northeast Brazil
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Published:2024-06-28
Issue:7
Volume:16
Page:377
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ISSN:1424-2818
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Container-title:Diversity
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language:en
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Short-container-title:Diversity
Author:
Araújo Priscila R. V.1ORCID, Postaire Bautisse D.23ORCID, Feldheim Kevin A.4, Bassos-Hull Kim5, Lessa Rosangela1ORCID, Ajemian Matthew J.6ORCID
Affiliation:
1. Departamento de Pesca e Aquicultura (DEPAq), Universidade Federal Rural de Pernambuco (UFRPE), Recife 52171-900, Brazil 2. UMR ENTROPIE (Université de La Réunion/IRD/CNRS/IFREMER/Université de Nouvelle Calédonie), Université de La Réunion, 97744 Saint Denis, France 3. Laboratoire d‘Excellence CORAIL, 66860 Perpignan, France 4. Pritzker Laboratory for Molecular Systematics and Evolution, The Field Museum, Chicago, IL 60605, USA 5. Sharks and Rays Conservation Research Program, Mote Marine Laboratory, 1600 Ken Thompson Parkway, Sarasota, FL 34236, USA 6. Harbor Branch Oceanographic Institute, Florida Atlantic University, 5600 N US Highway 1, Fort Pierce, FL 34946, USA
Abstract
In Brazil, the Whitespotted Eagle Ray Aetobatus narinari is considered data-deficient due to the scarcity of basic information on its biology, ecology, and vulnerability to capture. Despite this, the species is caught by artisanal fishing along most of the coast, especially in the northeast of Brazil. This study analyzed mitochondrial DNA data in specimens of A. narinari caught by artisanal fishing in the northeast coast of Brazil to understand their population structure. For this, 42 individuals were sequenced at three mitochondrial genes: cytochrome oxidase 1 (COI), cytochrome b (Cytb), and NADH dehydrogenase subunit 4 (ND4). Concatenated COI-Cytb-ND4 sequences yielded 14 haplotypes, with moderate haplotype diversity (h = 0.646), low nucleotide diversity (π = 0.00087), and low fixation index ΦST values, indicating no population structure. Our results suggest that there is only one population of A. narinari in the study area. Genetic studies can contribute to improving management plans in these areas, avoiding the overexploitation of this and other species.
Funder
Capes—Fundação Coordenação de Aperfeiçoamento de Pessoal de Nível Superior CNPq
Reference43 articles.
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