Comparison of the population biology of Epialtus bituberculatus from two rocky shores with distinct hydrodynamic patterns

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dc.contributor.authorDe Paiva Barros-Alves, Samara [UNESP]
dc.contributor.authorAlves, Douglas Fernandes Rodrigues [UNESP]
dc.contributor.authorCobo, Valter José
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionEcology and Culture
dc.contributor.institutionUniversidade de Taubaté-UNITAU
dc.date.accessioned2014-05-27T11:29:02Z
dc.date.available2014-05-27T11:29:02Z
dc.date.issued2013-05-01
dc.description.abstractThe population biology of Epialtus bituberculatus was compared between two different intertidal localities with differing levels of wave exposure. Sampling was conducted monthly between January and December, 2001 on seaweed banks of Sargassum cymosum in the intertidal zone of the rocky shores Grande (GR) (23°23′S-45°03′W) and Domingas Dias (DD) (23°29′S-45°08′W). Four hundred and twenty-eight crabs were captured at the GR site: 111 juvenile males, 106 adult males, 57 juvenile females, 17 adult females and 137 ovigerous females; while 455 specimens were obtained at the DD site: 76 juvenile males, 113 adult males, 37 juvenile females, 40 adult females and 189 ovigerous females. The population from GR showed a non-normal distribution and from DD a normal distribution. The sex-ratio (female/male) was 1:0.97 at GR (χ2 = 0.77, P = 0.084), whereas it was 1:1.41 at DD (χ2 = 13.03, P < 0.001). The largest individuals occurred at DD (U = 78249.0, P < 0.001). The estimated size at sexual maturity was 6.3 and 5.0 mm carapace width (CW) for males, and 5.4 and 5.2 mm CW for females, from GR and DD, respectively. The observed differences in E. bituberculatus between the studied localities might be explained by the different degrees of wave exposure between sites. However, other factors that might also explain the observed differences (e.g. temperature, salinity and food availability) cannot be discarded as relevant in influencing the population structure between sites herein studied. © 2012 Marine Biological Association of the United Kingdom.en
dc.description.affiliationDepartamento de Zoologia Instituto de Biociências Universidade Estadual Paulista-UNESP, Distrito de Rubião Junior, s/n, CEP: 18618-970, Botucatu, São Paulo
dc.description.affiliationNEBECC Group of Studies on Crustacean Biology Ecology and Culture
dc.description.affiliationLaboratório de Biologia Marinha-LabBMar Instituto de Biociências Universidade de Taubaté-UNITAU
dc.description.affiliationUnespDepartamento de Zoologia Instituto de Biociências Universidade Estadual Paulista-UNESP, Distrito de Rubião Junior, s/n, CEP: 18618-970, Botucatu, São Paulo
dc.format.extent693-702
dc.identifierhttp://dx.doi.org/10.1017/S0025315412000586
dc.identifier.citationJournal of the Marine Biological Association of the United Kingdom, v. 93, n. 3, p. 693-702, 2013.
dc.identifier.doi10.1017/S0025315412000586
dc.identifier.file2-s2.0-84876127384.pdf
dc.identifier.issn0025-3154
dc.identifier.issn1469-7769
dc.identifier.scopus2-s2.0-84876127384
dc.identifier.urihttp://hdl.handle.net/11449/75238
dc.identifier.wosWOS:000317238100014
dc.language.isoeng
dc.relation.ispartofJournal of the Marine Biological Association of the United Kingdom
dc.relation.ispartofjcr1.403
dc.relation.ispartofsjr0,548
dc.relation.ispartofsjr0,548
dc.rights.accessRightsAcesso restrito
dc.sourceScopus
dc.subjectBrachyura
dc.subjectEpialtinae
dc.subjectEpialtus bituberculatus
dc.subjectintertidal
dc.subjectpopulation structure
dc.subjectwaves
dc.subjectadult
dc.subjectbrown alga
dc.subjectcrab
dc.subjectfemale
dc.subjectfood availability
dc.subjecthydrodynamics
dc.subjectjuvenile
dc.subjectpopulation distribution
dc.subjectpopulation ecology
dc.subjectrocky shore
dc.subjectsalinity
dc.subjectsampling
dc.subjectseaweed
dc.subjectwave force
dc.subjectBrazil
dc.subjectSao Paulo [Brazil]
dc.subjectUbatuba
dc.titleComparison of the population biology of Epialtus bituberculatus from two rocky shores with distinct hydrodynamic patternsen
dc.typeArtigo
dcterms.licensehttp://journals.cambridge.org/action/displaySpecialPage?pageId=4676
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Biociências, Botucatupt

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