Population structure of the seabob shrimp Xiphopenaeus kroyeri (Heller, 1862) (Crustacea: Penaeoidea) in the littoral of São Paulo, Brazil

Detalhes bibliográficos
Autor(a) principal: Castro, Rodrigo H. [UNESP]
Data de Publicação: 2005
Outros Autores: Costa, Rogério Caetano da [UNESP], Fransozo, Adilson [UNESP], Mantelatto, Fernando L. M.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.3989/scimar.2005.69n1105
http://hdl.handle.net/11449/68161
Resumo: The population structure of the penaeidean shrimp Xyphopenacus kroyeri was studied in Ubatuba Bay, Ubatuba, Sd̃ao Paulo, Brazil. The period and site of juvenile recruitment were monitored using a monthly sampling design with eight fixed areas (transects) from September 1995 to August 1996. The population structure was assessed using size frequency distributions (based on carapace length) for each month and sampling area. Females were significantly larger than males, suggesting a differential growth between sexes. The very low occurrence of large adults in the Bay can be related to offshore migration for reproduction. Recruitment occurred throughout the year, with a peak during the summer, when the highest recruitment rates were obtained along inshore transects. The present investigation revealed valuable information on the biology of the species mainly in the study region, which is considered a nursery ground for juveniles of X. kroyeri. The species showed an important variation from the typical life cycle that it is assumed to hold over its entire range and X. kroyeri should be classified as having a life cycle different from that proposed previously in the literature, i.e. the juveniles prefer inshore areas instead of estuaries. Some suggestions for the seabob fishery management are proposed as an alternative for minimising the impact during the harvest period and adjusting the protection schedule.
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spelling Population structure of the seabob shrimp Xiphopenaeus kroyeri (Heller, 1862) (Crustacea: Penaeoidea) in the littoral of São Paulo, BrazilPenaeoideaPopulation structureRecruitmentXiphopenaeus kroyericrustaceanfishery managementlittoral environmentnursery groundpopulation structurerecruitmentBrazilSao Paulo [Brazil]South AmericaUbatuba BayWestern HemisphereWorldCrustaceaDecapoda (Crustacea)The population structure of the penaeidean shrimp Xyphopenacus kroyeri was studied in Ubatuba Bay, Ubatuba, Sd̃ao Paulo, Brazil. The period and site of juvenile recruitment were monitored using a monthly sampling design with eight fixed areas (transects) from September 1995 to August 1996. The population structure was assessed using size frequency distributions (based on carapace length) for each month and sampling area. Females were significantly larger than males, suggesting a differential growth between sexes. The very low occurrence of large adults in the Bay can be related to offshore migration for reproduction. Recruitment occurred throughout the year, with a peak during the summer, when the highest recruitment rates were obtained along inshore transects. The present investigation revealed valuable information on the biology of the species mainly in the study region, which is considered a nursery ground for juveniles of X. kroyeri. The species showed an important variation from the typical life cycle that it is assumed to hold over its entire range and X. kroyeri should be classified as having a life cycle different from that proposed previously in the literature, i.e. the juveniles prefer inshore areas instead of estuaries. Some suggestions for the seabob fishery management are proposed as an alternative for minimising the impact during the harvest period and adjusting the protection schedule.Departamento de Zoologia Instituto de Biociências UNESP, 18.618.000 Botucatu, São PauloDepto. de Ciências Biologicas Faculdade de Ciências Univ. Estadual Paulista - UNESP, 17033-360 Bauru, São PauloDepartamento de Biologia FFCLRP Universidade de São Paulo, Av. Bandeirantes, 3900, 14040-901 Ribeirao Preto, Sao PauloDepartamento de Zoologia Instituto de Biociências UNESP, 18.618.000 Botucatu, São PauloDepto. de Ciências Biologicas Faculdade de Ciências Univ. Estadual Paulista - UNESP, 17033-360 Bauru, São PauloUniversidade Estadual Paulista (Unesp)Universidade de São Paulo (USP)Castro, Rodrigo H. [UNESP]Costa, Rogério Caetano da [UNESP]Fransozo, Adilson [UNESP]Mantelatto, Fernando L. M.2014-05-27T11:21:17Z2014-05-27T11:21:17Z2005-03-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article105-112application/pdfhttp://dx.doi.org/10.3989/scimar.2005.69n1105Scientia Marina, v. 69, n. 1, p. 105-112, 2005.0214-8358http://hdl.handle.net/11449/6816110.3989/scimar.2005.69n1105WOS:0002277865000082-s2.0-163443914482-s2.0-16344391448.pdf852697254475935744759602002565920000-0002-2067-5406Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengScientia Marina1.1830,558info:eu-repo/semantics/openAccess2024-04-23T15:24:02Zoai:repositorio.unesp.br:11449/68161Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T23:35:07.381862Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Population structure of the seabob shrimp Xiphopenaeus kroyeri (Heller, 1862) (Crustacea: Penaeoidea) in the littoral of São Paulo, Brazil
title Population structure of the seabob shrimp Xiphopenaeus kroyeri (Heller, 1862) (Crustacea: Penaeoidea) in the littoral of São Paulo, Brazil
spellingShingle Population structure of the seabob shrimp Xiphopenaeus kroyeri (Heller, 1862) (Crustacea: Penaeoidea) in the littoral of São Paulo, Brazil
Castro, Rodrigo H. [UNESP]
Penaeoidea
Population structure
Recruitment
Xiphopenaeus kroyeri
crustacean
fishery management
littoral environment
nursery ground
population structure
recruitment
Brazil
Sao Paulo [Brazil]
South America
Ubatuba Bay
Western Hemisphere
World
Crustacea
Decapoda (Crustacea)
title_short Population structure of the seabob shrimp Xiphopenaeus kroyeri (Heller, 1862) (Crustacea: Penaeoidea) in the littoral of São Paulo, Brazil
title_full Population structure of the seabob shrimp Xiphopenaeus kroyeri (Heller, 1862) (Crustacea: Penaeoidea) in the littoral of São Paulo, Brazil
title_fullStr Population structure of the seabob shrimp Xiphopenaeus kroyeri (Heller, 1862) (Crustacea: Penaeoidea) in the littoral of São Paulo, Brazil
title_full_unstemmed Population structure of the seabob shrimp Xiphopenaeus kroyeri (Heller, 1862) (Crustacea: Penaeoidea) in the littoral of São Paulo, Brazil
title_sort Population structure of the seabob shrimp Xiphopenaeus kroyeri (Heller, 1862) (Crustacea: Penaeoidea) in the littoral of São Paulo, Brazil
author Castro, Rodrigo H. [UNESP]
author_facet Castro, Rodrigo H. [UNESP]
Costa, Rogério Caetano da [UNESP]
Fransozo, Adilson [UNESP]
Mantelatto, Fernando L. M.
author_role author
author2 Costa, Rogério Caetano da [UNESP]
Fransozo, Adilson [UNESP]
Mantelatto, Fernando L. M.
author2_role author
author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
Universidade de São Paulo (USP)
dc.contributor.author.fl_str_mv Castro, Rodrigo H. [UNESP]
Costa, Rogério Caetano da [UNESP]
Fransozo, Adilson [UNESP]
Mantelatto, Fernando L. M.
dc.subject.por.fl_str_mv Penaeoidea
Population structure
Recruitment
Xiphopenaeus kroyeri
crustacean
fishery management
littoral environment
nursery ground
population structure
recruitment
Brazil
Sao Paulo [Brazil]
South America
Ubatuba Bay
Western Hemisphere
World
Crustacea
Decapoda (Crustacea)
topic Penaeoidea
Population structure
Recruitment
Xiphopenaeus kroyeri
crustacean
fishery management
littoral environment
nursery ground
population structure
recruitment
Brazil
Sao Paulo [Brazil]
South America
Ubatuba Bay
Western Hemisphere
World
Crustacea
Decapoda (Crustacea)
description The population structure of the penaeidean shrimp Xyphopenacus kroyeri was studied in Ubatuba Bay, Ubatuba, Sd̃ao Paulo, Brazil. The period and site of juvenile recruitment were monitored using a monthly sampling design with eight fixed areas (transects) from September 1995 to August 1996. The population structure was assessed using size frequency distributions (based on carapace length) for each month and sampling area. Females were significantly larger than males, suggesting a differential growth between sexes. The very low occurrence of large adults in the Bay can be related to offshore migration for reproduction. Recruitment occurred throughout the year, with a peak during the summer, when the highest recruitment rates were obtained along inshore transects. The present investigation revealed valuable information on the biology of the species mainly in the study region, which is considered a nursery ground for juveniles of X. kroyeri. The species showed an important variation from the typical life cycle that it is assumed to hold over its entire range and X. kroyeri should be classified as having a life cycle different from that proposed previously in the literature, i.e. the juveniles prefer inshore areas instead of estuaries. Some suggestions for the seabob fishery management are proposed as an alternative for minimising the impact during the harvest period and adjusting the protection schedule.
publishDate 2005
dc.date.none.fl_str_mv 2005-03-01
2014-05-27T11:21:17Z
2014-05-27T11:21:17Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.3989/scimar.2005.69n1105
Scientia Marina, v. 69, n. 1, p. 105-112, 2005.
0214-8358
http://hdl.handle.net/11449/68161
10.3989/scimar.2005.69n1105
WOS:000227786500008
2-s2.0-16344391448
2-s2.0-16344391448.pdf
8526972544759357
4475960200256592
0000-0002-2067-5406
url http://dx.doi.org/10.3989/scimar.2005.69n1105
http://hdl.handle.net/11449/68161
identifier_str_mv Scientia Marina, v. 69, n. 1, p. 105-112, 2005.
0214-8358
10.3989/scimar.2005.69n1105
WOS:000227786500008
2-s2.0-16344391448
2-s2.0-16344391448.pdf
8526972544759357
4475960200256592
0000-0002-2067-5406
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Scientia Marina
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dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
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dc.format.none.fl_str_mv 105-112
application/pdf
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
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repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
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