Facts and uncertainties about the genetic population structure of Atlantic bluefin tuna (Thunnus thynnus) in the Mediterranean. Implications for fishery management.

15 páginas,4 tablas, 1 figura.

Detalhes bibliográficos
Autores: Viñas, Jordi, Gordoa, Ana, Fernández-Cebrián, R., Pla, Carles, Ünal, V., Araguas, R. M.
Tipo de documento: artigo
Data de publicação:2011
País:España
Recursos:Consejo Superior de Investigaciones Científicas (CSIC)
Repositório:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/55590
Acesso em linha:http://hdl.handle.net/10261/55590
Access Level:Acceso aberto
Palavra-chave:Atlantic bluefin tuna
Genetic population structure
Mediterranean Sea
Fishery management
Thunnus thynnus
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spelling Facts and uncertainties about the genetic population structure of Atlantic bluefin tuna (Thunnus thynnus) in the Mediterranean. Implications for fishery management.Viñas, JordiGordoa, AnaFernández-Cebrián, R.Pla, CarlesÜnal, V.Araguas, R. M.Atlantic bluefin tunaGenetic population structureMediterranean SeaFishery managementThunnus thynnus15 páginas,4 tablas, 1 figura.The Atlantic bluefin tuna (Thunnus thynnus) is an extraordinary fish that has amazed humanity since ancient times. However, the continuous overexploitation of this fishery, particularly in the Mediterranean Sea, could result in a total collapse of this resource. Currently, this species is managed as two stocks: Western Atlantic and Mediterranean-Eastern Atlantic, with a recognized genetic differentiation between them. On the other hand, the population structure within the Mediterranean Sea is still unclear. The biological data supports the idea of two separate populations in the eastern and western Mediterranean basins. However, nuclear microsatellite and mitochondrial DNA (mtDNA) analyses of two samples representative of these two basins result in a lack of heterogeneity. A comparison of these results with previously published studies reveals some discrepancies. We have compared 59 genetic differentiation tests that include samples within the Mediterranean. Of these, about 60% gave significant differentiation while the remaining 40% were non-significant. But, when only nuclear-based loci were considered, genetic differentiation was detected in up to 73% of the cases with an average significant FST of only 0.018, whereas the average significant FST of the mtDNA-based studies was significantly higher (0.029). However, in some cases, it is difficult to reconcile the biology of the species with the results suggesting genetic differentiation. In conclusion, although it is not yet possible to reach a definitive conclusion about the population structure, but considering all biological and genetic data, we suggest an independent management approach for each basin to avoid the impact of a type II error that could lead to the possible loss of the regional subpopulations.The work was partially supported to AG by The Cooperation Research Project between the Spanish Research Council (CSIC) and Balfego S.LPeer reviewedSpringer Nature201220122011info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501http://hdl.handle.net/10261/55590reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.1007/s11160-010-9174-6info:eu-repo/semantics/openAccessoai:digital.csic.es:10261/555902026-05-22T06:33:51Z
dc.title.none.fl_str_mv Facts and uncertainties about the genetic population structure of Atlantic bluefin tuna (Thunnus thynnus) in the Mediterranean. Implications for fishery management.
title Facts and uncertainties about the genetic population structure of Atlantic bluefin tuna (Thunnus thynnus) in the Mediterranean. Implications for fishery management.
spellingShingle Facts and uncertainties about the genetic population structure of Atlantic bluefin tuna (Thunnus thynnus) in the Mediterranean. Implications for fishery management.
Viñas, Jordi
Atlantic bluefin tuna
Genetic population structure
Mediterranean Sea
Fishery management
Thunnus thynnus
title_short Facts and uncertainties about the genetic population structure of Atlantic bluefin tuna (Thunnus thynnus) in the Mediterranean. Implications for fishery management.
title_full Facts and uncertainties about the genetic population structure of Atlantic bluefin tuna (Thunnus thynnus) in the Mediterranean. Implications for fishery management.
title_fullStr Facts and uncertainties about the genetic population structure of Atlantic bluefin tuna (Thunnus thynnus) in the Mediterranean. Implications for fishery management.
title_full_unstemmed Facts and uncertainties about the genetic population structure of Atlantic bluefin tuna (Thunnus thynnus) in the Mediterranean. Implications for fishery management.
title_sort Facts and uncertainties about the genetic population structure of Atlantic bluefin tuna (Thunnus thynnus) in the Mediterranean. Implications for fishery management.
dc.creator.none.fl_str_mv Viñas, Jordi
Gordoa, Ana
Fernández-Cebrián, R.
Pla, Carles
Ünal, V.
Araguas, R. M.
author Viñas, Jordi
author_facet Viñas, Jordi
Gordoa, Ana
Fernández-Cebrián, R.
Pla, Carles
Ünal, V.
Araguas, R. M.
author_role author
author2 Gordoa, Ana
Fernández-Cebrián, R.
Pla, Carles
Ünal, V.
Araguas, R. M.
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Atlantic bluefin tuna
Genetic population structure
Mediterranean Sea
Fishery management
Thunnus thynnus
topic Atlantic bluefin tuna
Genetic population structure
Mediterranean Sea
Fishery management
Thunnus thynnus
description 15 páginas,4 tablas, 1 figura.
publishDate 2011
dc.date.none.fl_str_mv 2011
2012
2012
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/55590
url http://hdl.handle.net/10261/55590
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/10.1007/s11160-010-9174-6
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Springer Nature
publisher.none.fl_str_mv Springer Nature
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,812455

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