A possible new spawning area for Atlantic bluefin tuna (Thunnus thynnus): First histologic evidence of reproductive activity in southern Gulf of Mexico

The number of studies of reproductive biology for Atlantic bluefin tuna carried out in the Gulf of Mexico is significantly lower than those undertaken in the Mediterranean Sea. Four spawning areas have been found for the eastern Atlantic bluefin tuna stock in the Mediterranean Sea, so it is not impl...

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Autores: Cruz-Castán, R.M., Saber, Sámar, Macías-López, Ángel David, Gómez-Vives, María José, Galindo-Cortes, G., Curiel-Ramírez, S., Meiners-Mandujano, C.
Tipo de recurso: artículo
Fecha de publicación:2019
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/326620
Acceso en línea:https://peerj.com/articles/7187.pdf
http://hdl.handle.net/10261/326620
Access Level:acceso abierto
Palabra clave:Centro Oceanográfico de Málaga
Pesquerías
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spelling A possible new spawning area for Atlantic bluefin tuna (Thunnus thynnus): First histologic evidence of reproductive activity in southern Gulf of MexicoCruz-Castán, R.M.Saber, SámarMacías-López, Ángel DavidGómez-Vives, María JoséGalindo-Cortes, G.Curiel-Ramírez, S.Meiners-Mandujano, C.Centro Oceanográfico de MálagaPesqueríasThe number of studies of reproductive biology for Atlantic bluefin tuna carried out in the Gulf of Mexico is significantly lower than those undertaken in the Mediterranean Sea. Four spawning areas have been found for the eastern Atlantic bluefin tuna stock in the Mediterranean Sea, so it is not implausible that there is more than one spawning area in the Gulf of Mexico for the western Atlantic bluefin tuna stock. The individuals used in this study were caught as bycatch by the Mexican surface longline fleet between January and April 2015. A total of 63 individuals ranging between 192 and 293 cm LF (mean = 238 ± 22.52 cm) were measured. Gonads from 46 fish (31 females and 15 males) were collected for histological examination. All the individuals were classified as mature; 25 were reproductively active (in spawning capable and spawning stages). The histological analysis indicates spawning activity in Mexican waters (the southern Gulf of Mexico). Spawning occurred in March and April, when the sea surface temperature was 25.57 °C ± 0.69 in March and 27.03 °C ± 0.69 in April. Information on the location of the spawning areas is necessary for a correct management of species. The present study provides the first histological evidence of reproductive activity in Mexican waters, and indicates a wider spawning area, beyond just the northern zone, potentially encompassing the entire Gulf of MexicoPeerJ202320232019info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501https://peerj.com/articles/7187.pdfhttp://hdl.handle.net/10261/326620reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)InglésCentro Oceanográfico de Málagainfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3266202026-05-22T06:33:51Z
dc.title.none.fl_str_mv A possible new spawning area for Atlantic bluefin tuna (Thunnus thynnus): First histologic evidence of reproductive activity in southern Gulf of Mexico
title A possible new spawning area for Atlantic bluefin tuna (Thunnus thynnus): First histologic evidence of reproductive activity in southern Gulf of Mexico
spellingShingle A possible new spawning area for Atlantic bluefin tuna (Thunnus thynnus): First histologic evidence of reproductive activity in southern Gulf of Mexico
Cruz-Castán, R.M.
Centro Oceanográfico de Málaga
Pesquerías
title_short A possible new spawning area for Atlantic bluefin tuna (Thunnus thynnus): First histologic evidence of reproductive activity in southern Gulf of Mexico
title_full A possible new spawning area for Atlantic bluefin tuna (Thunnus thynnus): First histologic evidence of reproductive activity in southern Gulf of Mexico
title_fullStr A possible new spawning area for Atlantic bluefin tuna (Thunnus thynnus): First histologic evidence of reproductive activity in southern Gulf of Mexico
title_full_unstemmed A possible new spawning area for Atlantic bluefin tuna (Thunnus thynnus): First histologic evidence of reproductive activity in southern Gulf of Mexico
title_sort A possible new spawning area for Atlantic bluefin tuna (Thunnus thynnus): First histologic evidence of reproductive activity in southern Gulf of Mexico
dc.creator.none.fl_str_mv Cruz-Castán, R.M.
Saber, Sámar
Macías-López, Ángel David
Gómez-Vives, María José
Galindo-Cortes, G.
Curiel-Ramírez, S.
Meiners-Mandujano, C.
author Cruz-Castán, R.M.
author_facet Cruz-Castán, R.M.
Saber, Sámar
Macías-López, Ángel David
Gómez-Vives, María José
Galindo-Cortes, G.
Curiel-Ramírez, S.
Meiners-Mandujano, C.
author_role author
author2 Saber, Sámar
Macías-López, Ángel David
Gómez-Vives, María José
Galindo-Cortes, G.
Curiel-Ramírez, S.
Meiners-Mandujano, C.
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Centro Oceanográfico de Málaga
Pesquerías
topic Centro Oceanográfico de Málaga
Pesquerías
description The number of studies of reproductive biology for Atlantic bluefin tuna carried out in the Gulf of Mexico is significantly lower than those undertaken in the Mediterranean Sea. Four spawning areas have been found for the eastern Atlantic bluefin tuna stock in the Mediterranean Sea, so it is not implausible that there is more than one spawning area in the Gulf of Mexico for the western Atlantic bluefin tuna stock. The individuals used in this study were caught as bycatch by the Mexican surface longline fleet between January and April 2015. A total of 63 individuals ranging between 192 and 293 cm LF (mean = 238 ± 22.52 cm) were measured. Gonads from 46 fish (31 females and 15 males) were collected for histological examination. All the individuals were classified as mature; 25 were reproductively active (in spawning capable and spawning stages). The histological analysis indicates spawning activity in Mexican waters (the southern Gulf of Mexico). Spawning occurred in March and April, when the sea surface temperature was 25.57 °C ± 0.69 in March and 27.03 °C ± 0.69 in April. Information on the location of the spawning areas is necessary for a correct management of species. The present study provides the first histological evidence of reproductive activity in Mexican waters, and indicates a wider spawning area, beyond just the northern zone, potentially encompassing the entire Gulf of Mexico
publishDate 2019
dc.date.none.fl_str_mv 2019
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 https://peerj.com/articles/7187.pdf
http://hdl.handle.net/10261/326620
url https://peerj.com/articles/7187.pdf
http://hdl.handle.net/10261/326620
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Centro Oceanográfico de Málaga
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv PeerJ
publisher.none.fl_str_mv PeerJ
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 15.811543

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