The influence of the 1992-1993 el niño on the reproductive biology of Scomber japonicus peruanus (Jordán & Hubb, 1925)

Detalhes bibliográficos
Autor(a) principal: Caramantin-Soriano, Hilda
Data de Publicação: 2009
Outros Autores: Vega-Pérez, Luz Amelia, Ñiquen, Miguel
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Brazilian Journal of Oceanography
Texto Completo: https://www.revistas.usp.br/bjoce/article/view/38546
Resumo: The influence of the 1992-1993 El Niño events on the reproductive behavior of the Scomber japonicus peruanus (Chub mackerel) was studied from samples collected monthly, along the Peruvian coast (3º23'S-14º00'S), from January 1990 to December 1993. The monthly variation of the gonadosomatic index and the frequency of the periods of gonad maturation evidenced that the spawning of the species occurred all year long, being more intense in summer. The values of the gonadosomatic index were higher during the occurrence of the 1992-1993 El Niño, while the body weight and gonad weight decreased. Regarding the condition factor, its values decreased in females over 35 cm in fork length.
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spelling The influence of the 1992-1993 el niño on the reproductive biology of Scomber japonicus peruanus (Jordán & Hubb, 1925)Scomber japonicus peruanusGonadal maturationGonadosomatic indexCondition factorEl Niño eventSouth PacificScomber japonicus peruanusMaturação gonadalÍndice gonadossomáticoFator de condiçãoEl NiñoPacífico SulThe influence of the 1992-1993 El Niño events on the reproductive behavior of the Scomber japonicus peruanus (Chub mackerel) was studied from samples collected monthly, along the Peruvian coast (3º23'S-14º00'S), from January 1990 to December 1993. The monthly variation of the gonadosomatic index and the frequency of the periods of gonad maturation evidenced that the spawning of the species occurred all year long, being more intense in summer. The values of the gonadosomatic index were higher during the occurrence of the 1992-1993 El Niño, while the body weight and gonad weight decreased. Regarding the condition factor, its values decreased in females over 35 cm in fork length.A influência do evento El Niño 1992-1993 no comportamento reprodutivo de Scomber japonicus peruanus (cavalinha) foi estudada a partir de amostras coletadas mensalmente, ao longo do litoral peruano (3º23'S-14º00'S), de janeiro de 1990 a dezembro de 1993. A variação mensal do índice gonadossomático e a freqüência dos estágios de maturação gonadal evidenciaram que a desova da cavalinha ocorreu o ano inteiro, sendo mais intensa no verão. Os valores do índice gonadossomático foram mais elevados durante o evento El Niño, mas, em contraposição, as fêmeas apresentaram peso menor. Os dados mostraram que o fator de condição diminuiu em fêmeas com mais de 35 cm de comprimento furcal.Universidade de São Paulo. Instituto Oceanográfico2009-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://www.revistas.usp.br/bjoce/article/view/3854610.1590/S1679-87592009000400002Brazilian Journal of Oceanography; Vol. 57 Núm. 4 (2009); 263-272Brazilian Journal of Oceanography; v. 57 n. 4 (2009); 263-272Brazilian Journal of Oceanography; Vol. 57 No. 4 (2009); 263-2721982-436X1679-8759reponame:Brazilian Journal of Oceanographyinstname:Universidade de São Paulo (USP)instacron:USPenghttps://www.revistas.usp.br/bjoce/article/view/38546/41391Caramantin-Soriano, HildaVega-Pérez, Luz AmeliaÑiquen, Miguelinfo:eu-repo/semantics/openAccess2012-08-16T14:38:36Zoai:revistas.usp.br:article/38546Revistahttps://www.revistas.usp.br/bjoce/indexPUBhttps://www.revistas.usp.br/bjoce/oaiio@usp.br||io@usp.br1982-436X1679-8759opendoar:2012-08-16T14:38:36Brazilian Journal of Oceanography - Universidade de São Paulo (USP)false
dc.title.none.fl_str_mv The influence of the 1992-1993 el niño on the reproductive biology of Scomber japonicus peruanus (Jordán & Hubb, 1925)
title The influence of the 1992-1993 el niño on the reproductive biology of Scomber japonicus peruanus (Jordán & Hubb, 1925)
spellingShingle The influence of the 1992-1993 el niño on the reproductive biology of Scomber japonicus peruanus (Jordán & Hubb, 1925)
Caramantin-Soriano, Hilda
Scomber japonicus peruanus
Gonadal maturation
Gonadosomatic index
Condition factor
El Niño event
South Pacific
Scomber japonicus peruanus
Maturação gonadal
Índice gonadossomático
Fator de condição
El Niño
Pacífico Sul
title_short The influence of the 1992-1993 el niño on the reproductive biology of Scomber japonicus peruanus (Jordán & Hubb, 1925)
title_full The influence of the 1992-1993 el niño on the reproductive biology of Scomber japonicus peruanus (Jordán & Hubb, 1925)
title_fullStr The influence of the 1992-1993 el niño on the reproductive biology of Scomber japonicus peruanus (Jordán & Hubb, 1925)
title_full_unstemmed The influence of the 1992-1993 el niño on the reproductive biology of Scomber japonicus peruanus (Jordán & Hubb, 1925)
title_sort The influence of the 1992-1993 el niño on the reproductive biology of Scomber japonicus peruanus (Jordán & Hubb, 1925)
author Caramantin-Soriano, Hilda
author_facet Caramantin-Soriano, Hilda
Vega-Pérez, Luz Amelia
Ñiquen, Miguel
author_role author
author2 Vega-Pérez, Luz Amelia
Ñiquen, Miguel
author2_role author
author
dc.contributor.author.fl_str_mv Caramantin-Soriano, Hilda
Vega-Pérez, Luz Amelia
Ñiquen, Miguel
dc.subject.por.fl_str_mv Scomber japonicus peruanus
Gonadal maturation
Gonadosomatic index
Condition factor
El Niño event
South Pacific
Scomber japonicus peruanus
Maturação gonadal
Índice gonadossomático
Fator de condição
El Niño
Pacífico Sul
topic Scomber japonicus peruanus
Gonadal maturation
Gonadosomatic index
Condition factor
El Niño event
South Pacific
Scomber japonicus peruanus
Maturação gonadal
Índice gonadossomático
Fator de condição
El Niño
Pacífico Sul
description The influence of the 1992-1993 El Niño events on the reproductive behavior of the Scomber japonicus peruanus (Chub mackerel) was studied from samples collected monthly, along the Peruvian coast (3º23'S-14º00'S), from January 1990 to December 1993. The monthly variation of the gonadosomatic index and the frequency of the periods of gonad maturation evidenced that the spawning of the species occurred all year long, being more intense in summer. The values of the gonadosomatic index were higher during the occurrence of the 1992-1993 El Niño, while the body weight and gonad weight decreased. Regarding the condition factor, its values decreased in females over 35 cm in fork length.
publishDate 2009
dc.date.none.fl_str_mv 2009-12-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://www.revistas.usp.br/bjoce/article/view/38546
10.1590/S1679-87592009000400002
url https://www.revistas.usp.br/bjoce/article/view/38546
identifier_str_mv 10.1590/S1679-87592009000400002
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://www.revistas.usp.br/bjoce/article/view/38546/41391
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade de São Paulo. Instituto Oceanográfico
publisher.none.fl_str_mv Universidade de São Paulo. Instituto Oceanográfico
dc.source.none.fl_str_mv Brazilian Journal of Oceanography; Vol. 57 Núm. 4 (2009); 263-272
Brazilian Journal of Oceanography; v. 57 n. 4 (2009); 263-272
Brazilian Journal of Oceanography; Vol. 57 No. 4 (2009); 263-272
1982-436X
1679-8759
reponame:Brazilian Journal of Oceanography
instname:Universidade de São Paulo (USP)
instacron:USP
instname_str Universidade de São Paulo (USP)
instacron_str USP
institution USP
reponame_str Brazilian Journal of Oceanography
collection Brazilian Journal of Oceanography
repository.name.fl_str_mv Brazilian Journal of Oceanography - Universidade de São Paulo (USP)
repository.mail.fl_str_mv io@usp.br||io@usp.br
_version_ 1800223769511329792

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