Reproductive output of the spider crab Epialtus bituberculatus (H. Milne Edwards, 1834) (Crustacea, Decapoda, Brachyura) associated with beds of the alga Sargassum cymosum (C. Agardh, 1820) on the southeastern Brazilian coast

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dc.contributor.authorCobo, Valter Jose
dc.contributor.authorBarros, Samara de P. [UNESP]
dc.contributor.institutionUniv Taubate
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T13:54:05Z
dc.date.available2014-05-20T13:54:05Z
dc.date.issued2009-07-01
dc.description.abstractThe reproductive output of the spider crab Epialtus bituberculatus, which is associated with beds of the alga Sargassum cymosum, was evaluated. Collections were carried out monthly from January through December 2001 in the intertidal of two beaches (Grande and Domingas Dias) on the subtropical southeastern Brazilian coast. The carapace width of ovigerous females was measured and their eggs were counted. A subsample of five eggs was taken from each batch and their volume measured and the stage of embryonic development identified. The fecundity index (FI), and reproductive intensity index (RII), were estimated. In total, 281 ovigerous females were obtained, 108 and 173 from Grande and Domingas Dias beaches, respectively. The egg production was a function of the size of the crabs. The fecundity was significantly different between the two sites. Individuals from the Domingas Dias beach population had a larger average fecundity and greater peaks of RII in comparison to the crabs at Grande beach. Significant differences in egg volume were detected between early and late embryonic stages, at both beaches. The general trend for the egg-production strategy of E. bituberculatus follows the pattern for tropical and subtropical brachyuran species, increasing with body-size. The differences recorded in the present study might be caused by environmental factors such as hydrodynamics, which are quite different between the two beaches, suggesting that this may have importance in the determining the reproductive output of this species.en
dc.description.affiliationUniv Taubate, UNITAU, Dept Biol, NEBECC Study Grp Crustacean Biol Ecol & Culture, BR-12030180 Taubate, SP, Brazil
dc.description.affiliationUniv Taubate, UNITAU, Dept Biol, LABBMAR Lab Biol Marinha, BR-12030180 Taubate, SP, Brazil
dc.description.affiliationUNESP, Dept Zool, Inst Biociencias, Botucatu, SP, Brazil
dc.description.affiliationUnespUNESP, Dept Zool, Inst Biociencias, Botucatu, SP, Brazil
dc.description.sponsorshipUniversidade de Taubate
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipIdUNITAU: 251/2001-PRPPG
dc.description.sponsorshipIdCNPq: 133688/2007-0
dc.format.extent53-58
dc.identifierhttp://dx.doi.org/10.1080/07924259.2009.9652289
dc.identifier.citationInvertebrate Reproduction & Development. Rehovot: Int Science Services/balaban Publishers, v. 53, n. 1, p. 53-58, 2009.
dc.identifier.doi10.1080/07924259.2009.9652289
dc.identifier.issn0792-4259
dc.identifier.urihttp://hdl.handle.net/11449/19311
dc.identifier.wosWOS:000269224700006
dc.language.isoeng
dc.publisherInt Science Services/balaban Publishers
dc.relation.ispartofInvertebrate Reproduction & Development
dc.relation.ispartofjcr1.056
dc.relation.ispartofsjr0,409
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectRealized fecundityen
dc.subjectegg productionen
dc.subjectreproductive intensityen
dc.subjectEpialtidaeen
dc.titleReproductive output of the spider crab Epialtus bituberculatus (H. Milne Edwards, 1834) (Crustacea, Decapoda, Brachyura) associated with beds of the alga Sargassum cymosum (C. Agardh, 1820) on the southeastern Brazilian coasten
dc.typeArtigo
dcterms.licensehttp://journalauthors.tandf.co.uk/permissions/reusingOwnWork.asp
dcterms.rightsHolderInt Science Services/balaban Publishers
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Biociências, Botucatupt

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Artigos - Zoologia - IBB