Lifespan and reproductive dynamics of the commercially important sea bob shrimp Xiphopenaeus kroyeri (Penaeoidea): synthesis of a 5-year study

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dc.contributor.authorCastilho, Antonio L. [UNESP]
dc.contributor.authorBauer, Raymond T.
dc.contributor.authorFreire, Fúlvio A. M.
dc.contributor.authorFransozo, Vivian Fransozo
dc.contributor.authorCosta, Rogério C. [UNESP]
dc.contributor.authorGrabowski, Raphael C. [UNESP]
dc.contributor.authorFransozo, Adilson [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversity of Louisiana at Lafayette
dc.contributor.institutionUniversidade Federal do Rio Grande do Norte (UFRN)
dc.contributor.institutionUniversidade Estadual do Sudoeste da Bahia (UESB)
dc.date.accessioned2015-08-21T17:53:20Z
dc.date.available2015-08-21T17:53:20Z
dc.date.issued2015
dc.description.abstractPopulation parameters of the shrimp Xiphopenaeus kroyeri (Heller, 1862) (sex ratio, length-frequency distributions (carapace length, CL), growth, lifespan, size of sexual maturity, spawning and recruitment) were analyzed in a long-term study from January 1998 through June 2003. The data on these parameters were collected and analyzed to test the hypothesis that the main period of juvenile recruitment in the bay coincides with the period of fishery closures currently designated by the Brazilian Institute of Environment and Renewable Natural Resources. Monthly collections were conducted along the southeastern Brazilian coast, using a shrimp fishing boat with “double-rig” nets sampling at stations up to 40 m depth. Sex ratios were female-biased only in zones with high reproductive activity such as in stations deeper than 15 m (χ2 test, p<0.05). The mean size of males and females was 15.3 ± 3.1 mm CL and 16.2 ± 4.7 mm CL, respectively, with size at sexual maturity estimates (CL50) of 14.8 mm for males and 15.5 mm for females. Mean growth curves provided estimates of CL∞ = 29.31 mm, k = 0.009/day, t0=−0.25 and CL∞ = 35.33 mm, k = 0.006/day, t0=−0.23 for males and females, respectively, and average lifespans of 1.35 for males and 2.12 years for females. Recruitment and abundances of reproductive females were highly correlated with the environmental factors such as higher water temperature and finer-grained bottom sediment (canonical correlation, r=0.63, p<0.001). The reproductive peaks in February-April 1998, March-May 1999 and February-May 2002 were followed by recruitment peaks in May-July 1998, July-September 1999 and April-June 2002, respectively. Thus, the proposed period of fisheries closure (March to May) does not coincide with the main recruitment periods observed for X. kroyeri.en
dc.description.affiliationUniversidade Estadual Paulista Júlio de Mesquita Filho, Departamento de Ciências Biológicas, Faculdade de Ciências de Bauru, Bauru, Av. Engenheiro Luis Edmundo Carrijo Coube, n 14-01, Vargem Limpa, CEP 17033360, SP, Brasil
dc.description.affiliationUnespUniversidade Estadual Paulista Júlio de Mesquita Filho, Departamento de Ciências Biológicas, Faculdade de Ciências de Bauru, Bauru, Av. Engenheiro Luis Edmundo Carrijo Coube, n 14-01, Vargem Limpa, CEP 17033360, SP, Brasil
dc.format.extent30-40
dc.identifierhttp://booksandjournals.brillonline.com/content/journals/10.1163/1937240x-00002300
dc.identifier.citationJournal of Crustacean Biology, v. 35, p. 30-40, 2015.
dc.identifier.doi10.1163/1937240x-00002300
dc.identifier.issn0278-0372
dc.identifier.lattes8526972544759357
dc.identifier.lattes5275027284030599
dc.identifier.lattes8313295480738032
dc.identifier.lattes4475960200256592
dc.identifier.orcid0000-0002-2067-5406
dc.identifier.urihttp://hdl.handle.net/11449/126860
dc.language.isoeng
dc.relation.ispartofJournal of Crustacean Biology
dc.relation.ispartofjcr1.119
dc.relation.ispartofsjr0,445
dc.rights.accessRightsAcesso restrito
dc.sourceCurrículo Lattes
dc.subjectPopulation dynamicsen
dc.subjectRecruitmenten
dc.subjectFisheries biologyen
dc.subjectPenaeoideaen
dc.subjectReproductive patternen
dc.titleLifespan and reproductive dynamics of the commercially important sea bob shrimp Xiphopenaeus kroyeri (Penaeoidea): synthesis of a 5-year studyen
dc.typeArtigo
unesp.advisor.lattes4475960200256592[7]
unesp.author.lattes8526972544759357
unesp.author.lattes5275027284030599[1]
unesp.author.lattes8313295480738032
unesp.author.orcid0000-0002-2067-5406[7]
unesp.author.orcid0000-0003-0001-9054[1]
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Ciências, Baurupt
unesp.departmentCiências Biológicas - FCpt

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