Vertical distribution by demographic groups of ghost crab Ocypode quadrata (Crustacea: Brachyura)

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dc.contributor.authorCorrea, Michele O. D. A. [UNESP]
dc.contributor.authorAndrade, Luciana S. [UNESP]
dc.contributor.authorCosta, Rogerio C. [UNESP]
dc.contributor.authorCastilho, Antonio L. [UNESP]
dc.contributor.authorBertini, Giovana [UNESP]
dc.contributor.authorFransozo, Adilson [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.date.accessioned2015-03-18T15:56:13Z
dc.date.available2015-03-18T15:56:13Z
dc.date.issued2014-07-01
dc.description.abstractThe ghost crab Ocypode quadrata plays an important role in energy transfer between trophic levels, and has been widely used in evaluations of impacted environments. In order to provide data on the biology of this potential bioindicator species, the population structure and vertical distribution of individuals were studied on two beaches in southeastern Brazil. Each beach was divided into quadrants of 1000 m(2) with boundaries of upper, middle and lower levels in relation to the waterline. Collected monthly by active searching through one year, the specimens of O. quadrata were sexed, measured for carapace width, and returned to the beach. Of the total of 1904 specimens collected, the largest proportion (46.2%) were males, followed by 31.4% juveniles. The vertical distribution of the ghost crabs differed among age groups: males mostly occupied the middle and upper levels; adult females, ovigerous or not, were more abundant in the lower level; and juveniles were evenly distributed in all levels, with a slight tendency toward the middle. The sex ratio favored males in a few months of the year and in the larger size classes. The abundance of O. quadrata is limited by low temperatures, and its spatial and temporal distribution is controlled by food availability and ease of reproduction. Knowledge of the biology of these crabs is essential in order to use them as a bioindicator species; the vertical distribution patterns may reflect changes in the beach hydrodynamics or other environmental factors.en
dc.description.affiliationUniv Estadual Paulista, Inst Biociencias, Botucatu, SP, Brazil
dc.description.affiliationNEBECC Grp Studies Crustacean Biol Ecol & Culture, Botucatu, SP, Brazil
dc.description.affiliationUniv Estadual Paulista, Bauru, SP, Brazil
dc.description.affiliationUniv Estadual Paulista, Registro, SP, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Inst Biociencias, Botucatu, SP, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Bauru, SP, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Registro, SP, Brazil
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.format.extent905-915
dc.identifierhttp://dx.doi.org/10.2478/s11756-014-0385-5
dc.identifier.citationBiologia. Warsaw: De Gruyter Open Ltd, v. 69, n. 7, p. 905-915, 2014.
dc.identifier.doi10.2478/s11756-014-0385-5
dc.identifier.fileWOS000340582900010.pdf
dc.identifier.issn0006-3088
dc.identifier.lattes4475960200256592
dc.identifier.orcid0000-0002-2067-5406
dc.identifier.urihttp://hdl.handle.net/11449/117468
dc.identifier.wosWOS:000340582900010
dc.language.isoeng
dc.publisherDe Gruyter Open Ltd
dc.relation.ispartofBiologia
dc.relation.ispartofjcr0.696
dc.relation.ispartofsjr0,299
dc.rights.accessRightsAcesso aberto
dc.sourceWeb of Science
dc.subjectintertidal zoneen
dc.subjectOcypode quadrataen
dc.subjectOcypodidaeen
dc.subjectpopulation patternen
dc.subjectvertical migrationen
dc.titleVertical distribution by demographic groups of ghost crab Ocypode quadrata (Crustacea: Brachyura)en
dc.typeArtigo
dcterms.rightsHolderDe Gruyter Open Ltd
unesp.author.lattes4475960200256592[6]
unesp.author.lattes5275027284030599[4]
unesp.author.orcid0000-0002-2067-5406[6]
unesp.author.orcid0000-0003-0001-9054[4]
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Ciências Agrárias do Vale do Ribeira, Registropt

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