Spatio-temporal patterns of juveniles in EU purse seine fleet catches targeting tropical tunas over the period 1990-2019

The knowledge of the juvenile distribution in fisheries is essential to better manage the fishing effort on a stock. The exploration of a large dataset which covers 30 years of the purse seine fishery sampling enabled to study the spatio-temporal dynamic of the juvenile catches of the yellowfin and...

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Detalles Bibliográficos
Autores: Duparc, Antoine, Pascual-Alayón, Pedro José, Abascal, Francisco Javier, Floch, L.
Tipo de recurso: artículo
Fecha de publicación:2023
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/326122
Acceso en línea:http://hdl.handle.net/10261/326122
Access Level:acceso abierto
Palabra clave:Size distribution
Pesquerías
Sede Central IEO
Atlantic Ocean
major tunas
yellowfin
bigeye
Thunnus albacares
Thunnus obesus
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spelling Spatio-temporal patterns of juveniles in EU purse seine fleet catches targeting tropical tunas over the period 1990-2019Duparc, AntoinePascual-Alayón, Pedro JoséAbascal, Francisco JavierFloch, L.Size distributionPesqueríasSede Central IEOAtlantic Oceanmajor tunasyellowfinbigeyeThunnus albacaresThunnus obesusThe knowledge of the juvenile distribution in fisheries is essential to better manage the fishing effort on a stock. The exploration of a large dataset which covers 30 years of the purse seine fishery sampling enabled to study the spatio-temporal dynamic of the juvenile catches of the yellowfin and bigeye tunas. Results showed the existence of several areas of prime importance in terms of catch and concentration in juveniles with seasonal variations. Thus, the south of the fishing ground (Cape Lopez) was fished during winter month and the north during summer months (Cape Verde, Senegal y Mauritania). Offshore coastal zone and Gulf of Guinea were fished almost all along the year. This seasonal pattern is quite stable since the 90s but the proportion of juveniles in schools associated with floating objects tended to increase in both species. This preliminary study opened the way for further research on this important component of the fish stocks.20232023info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501http://hdl.handle.net/10261/326122reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)InglésSede Central IEOinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3261222026-05-22T06:33:51Z
dc.title.none.fl_str_mv Spatio-temporal patterns of juveniles in EU purse seine fleet catches targeting tropical tunas over the period 1990-2019
title Spatio-temporal patterns of juveniles in EU purse seine fleet catches targeting tropical tunas over the period 1990-2019
spellingShingle Spatio-temporal patterns of juveniles in EU purse seine fleet catches targeting tropical tunas over the period 1990-2019
Duparc, Antoine
Size distribution
Pesquerías
Sede Central IEO
Atlantic Ocean
major tunas
yellowfin
bigeye
Thunnus albacares
Thunnus obesus
title_short Spatio-temporal patterns of juveniles in EU purse seine fleet catches targeting tropical tunas over the period 1990-2019
title_full Spatio-temporal patterns of juveniles in EU purse seine fleet catches targeting tropical tunas over the period 1990-2019
title_fullStr Spatio-temporal patterns of juveniles in EU purse seine fleet catches targeting tropical tunas over the period 1990-2019
title_full_unstemmed Spatio-temporal patterns of juveniles in EU purse seine fleet catches targeting tropical tunas over the period 1990-2019
title_sort Spatio-temporal patterns of juveniles in EU purse seine fleet catches targeting tropical tunas over the period 1990-2019
dc.creator.none.fl_str_mv Duparc, Antoine
Pascual-Alayón, Pedro José
Abascal, Francisco Javier
Floch, L.
author Duparc, Antoine
author_facet Duparc, Antoine
Pascual-Alayón, Pedro José
Abascal, Francisco Javier
Floch, L.
author_role author
author2 Pascual-Alayón, Pedro José
Abascal, Francisco Javier
Floch, L.
author2_role author
author
author
dc.subject.none.fl_str_mv Size distribution
Pesquerías
Sede Central IEO
Atlantic Ocean
major tunas
yellowfin
bigeye
Thunnus albacares
Thunnus obesus
topic Size distribution
Pesquerías
Sede Central IEO
Atlantic Ocean
major tunas
yellowfin
bigeye
Thunnus albacares
Thunnus obesus
description The knowledge of the juvenile distribution in fisheries is essential to better manage the fishing effort on a stock. The exploration of a large dataset which covers 30 years of the purse seine fishery sampling enabled to study the spatio-temporal dynamic of the juvenile catches of the yellowfin and bigeye tunas. Results showed the existence of several areas of prime importance in terms of catch and concentration in juveniles with seasonal variations. Thus, the south of the fishing ground (Cape Lopez) was fished during winter month and the north during summer months (Cape Verde, Senegal y Mauritania). Offshore coastal zone and Gulf of Guinea were fished almost all along the year. This seasonal pattern is quite stable since the 90s but the proportion of juveniles in schools associated with floating objects tended to increase in both species. This preliminary study opened the way for further research on this important component of the fish stocks.
publishDate 2023
dc.date.none.fl_str_mv 2023
2023
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/10261/326122
url http://hdl.handle.net/10261/326122
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Sede Central IEO
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
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 15.81155

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