Population structure of the seabob shrimp Xiphopenaeus kroyeri (Heller, 1862) (Crustacea: Penaeoidea) in the littoral of São Paulo, Brazil
Autor(a) principal: | |
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Data de Publicação: | 2005 |
Outros Autores: | , , |
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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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 1.183 0,558 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
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 |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808129532654256128 |