Otolith phenotypic variation as an indicator of stock structure of Scomberomorus brasiliensis from the southwestern Atlantic Ocean

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Autor(es): dc.contributorUniversidade Federal do Paraná (UFPR)-
Autor(es): dc.contributorCentro Interdisciplinar de Investigação Marinha e Ambiental-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorFaculdade de Ciências da Saúde da Universidade Fernando Pessoa-
Autor(es): dc.contributorInstituto de Ciências Biomédicas Abel Salazar da Universidade do Porto (ICBAS-UP)-
Autor(es): dc.contributorFederal University of Alagoas-
Autor(es): dc.contributorUniversidade Federal do Ceará-
Autor(es): dc.contributorInstituto Federal de Alagoas-
Autor(es): dc.creatorSoeth, Marcelo-
Autor(es): dc.creatorDaros, Felippe Alexandre-
Autor(es): dc.creatorCorreia, Alberto Teodorico-
Autor(es): dc.creatorFabré, Nidia Noemi-
Autor(es): dc.creatorMedeiros, Reginaldo-
Autor(es): dc.creatorFeitosa, Caroline Vieira-
Autor(es): dc.creatorDuarte, Oscar de Sousa-
Autor(es): dc.creatorLenz, Tiago Moraes-
Autor(es): dc.creatorSpach, Henry Louis-
Data de aceite: dc.date.accessioned2025-08-21T22:15:15Z-
Data de disponibilização: dc.date.available2025-08-21T22:15:15Z-
Data de envio: dc.date.issued2023-03-01-
Data de envio: dc.date.issued2023-03-01-
Data de envio: dc.date.issued2022-08-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.fishres.2022.106357-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/240940-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/240940-
Descrição: dc.descriptionPhenotypic variation of Scomberomorus brasiliensis otoliths was evaluated by testing the null hypothesis of a single stock across the southwestern Atlantic Ocean. Otolith sampling of S. brasiliensis (n = 396) took place between July and October 2019 at nine locations along the Brazilian coast. The shape of each otolith contour was assessed with elliptic Fourier descriptors (EFDs) and their variation evaluated through multivariate analyses. Fish size-otolith size relationships were used to explore interregional differences in S. brasiliensis growth. Cluster analysis based on EFDs separated the sampling locations into tropical (2°S to 20°S) and subtropical (23°S to 27°S) Atlantic regions. The variation of EFDs between these regions was over twice as large as the within region variation. Linear discriminant analysis (LDA) discriminated between regions with 72.85% overall accuracy. Subtropical fish were characterized by the lowest otolith mass at fish size, suggesting great conditions for the growth of S. brasiliensis in subtropical waters. Local phenotypic structuring among S. brasiliensis population units was less evident (LDA, 29.6% overall accuracy), most likely due to high demographic connectivity on short spatial scales, or even, small environmental heterogeneity to promote discrete phenotypic in S. brasiliensis otoliths. Yet, EFDs from distant population units (2°S and 23–27°S) were statistically similar and a likelihood of extensive longshore migration could not be excluded with the herein used approach. These results suggest, however, regional population units appear not regularly mix and fishery managers need to consider such Atlantic regions as functionally distinct management units in a metapopulation perspective.-
Descrição: dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)-
Descrição: dc.descriptionPrograma de Pós-Graduação em Sistemas Costeiros e Oceânicos Universidade Federal do Paraná, P.O 61, PR-
Descrição: dc.descriptionCentro Interdisciplinar de Investigação Marinha e Ambiental, Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos S/N-
Descrição: dc.descriptionUniversidade Estadual Paulista Julio de Mesquita Filho UNESP Registro, SP-
Descrição: dc.descriptionFaculdade de Ciências da Saúde da Universidade Fernando Pessoa, Rua Carlos Maia 296-
Descrição: dc.descriptionInstituto de Ciências Biomédicas Abel Salazar da Universidade do Porto (ICBAS-UP), Rua de Jorge Viterbo Ferreira 228-
Descrição: dc.descriptionLaboratory of Ecology Fish and Fisheries Institute of Biological and Health Sciences Federal University of Alagoas, Alagoas-
Descrição: dc.descriptionLaboratório de Dinâmica Populacional e Ecologia de Peixes Marinhos Instituto de Ciências do Mar Universidade Federal do Ceará, Ceará-
Descrição: dc.descriptionInstituto Federal de Alagoas Campus Penedo, Alagoas-
Descrição: dc.descriptionUniversidade Estadual Paulista Julio de Mesquita Filho UNESP Registro, SP-
Descrição: dc.descriptionCAPES: 88887.357807/2019-00-
Idioma: dc.languageen-
Relação: dc.relationFisheries Research-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectBrazilian coast-
Palavras-chave: dc.subjectElliptic Fourier analysis-
Palavras-chave: dc.subjectFisheries management-
Palavras-chave: dc.subjectPhenotypic stocks-
Palavras-chave: dc.subjectThermal gradient-
Título: dc.titleOtolith phenotypic variation as an indicator of stock structure of Scomberomorus brasiliensis from the southwestern Atlantic Ocean-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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