Please use this identifier to cite or link to this item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/984889
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dc.contributor.authorAMARAL, K. D. S.pt_BR
dc.contributor.authorVIEIRA, I. M.pt_BR
dc.contributor.authorOSÓRIO, F. M.pt_BR
dc.contributor.authorROCHA, J. D. M.pt_BR
dc.contributor.authorLIMA, J. de F.pt_BR
dc.date.accessioned2014-04-22T11:11:11Zpt_BR
dc.date.available2014-04-22T11:11:11Zpt_BR
dc.date.created2014-04-22pt_BR
dc.date.issued2014pt_BR
dc.identifier.citationActa Amazonica, Manaus, v. 44, n. 2, p. 213-222, 2014.pt_BR
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/984889pt_BR
dc.descriptionThe mangrove crab (Ucides cordatus) is a valuable fishery resource, overfished along the Brazilian coast. This study aimed to obtain bioecological data on this crab along the coast of the State of Amapá. Six bimonthly samplings were conducted between December 2008 and January 2010. Transects were used to estimate the density (burrows m-2) and population abundance (individuals m-2). All the animals were subjected to biometrics, with females being classified according to their stage of gonadal maturation. The mean density (1.09 burrows m-2) and abundance (0.31 individuals m-2) were influenced by the climate with the highest values ​​in summer (1.17 burrows m-2 and 0.34 individuals m-2). The male to female ratio was 1.38:1 showing significant difference in the proportion of sexes. The individuals showed sexual dimorphism, with linear measurements significantly higher in males. The sampled animals also had larger carapace length and width (CL and CW) compared to crabs studied in other Brazilian states. There was a positive relationship between CW and CL and individual weight (IW) and CW for males (R2 = 0.83 and 0.90) and females (R2 = 0.79 and 0.84). The growth was negative allometric (CL increases to a lesser extent than CW) for both sexes. The highest frequency of ovigerous females (78%) and in maturation stage IV (38%) occurred in the CW size class between 59.8 and 67.5 mm. The peak of mature females occurred in May and August, showing a reproductive period different from those in other Brazilian states.pt_BR
dc.language.isoengeng
dc.rightsopenAccesseng
dc.subjectReprodutctive dynamicspt_BR
dc.subjectFishery resourcept_BR
dc.subjectDinâmica reprodutivapt_BR
dc.subjectEstrutura populacionalpt_BR
dc.subjectAmapápt_BR
dc.titleBioecology of the crab Ucides cordatus (Crustacea, Decapoda) in mangroves influenced by the Amazon River, Brazil.pt_BR
dc.typeArtigo de periódicopt_BR
dc.date.updated2019-05-29T11:11:11Zpt_BR
dc.subject.thesagroCrustáceopt_BR
dc.subject.thesagroRecurso pesqueiropt_BR
dc.subject.nalthesauruspopulation structurept_BR
riaa.ainfo.id984889pt_BR
riaa.ainfo.lastupdate2019-05-29 -03:00:00pt_BR
dc.contributor.institutionKARLIA DALLA SANTA AMARAL, CPAF-APpt_BR
dc.contributor.institutionINÁCIA MARIA VIEIRA, Instituto de Pesquisas Científicas e Tecnológica do Estado do Amapáeng
dc.contributor.institutionFREDERICO MOREIRA OSÓRIO, Instituto Brasileiro do Meio Ambiente e dos Recursos Naturais Renováveiseng
dc.contributor.institutionJOANA D'ARC MAURICIO ROCHA, Universidade do Estado do Amapáeng
dc.contributor.institutionJO DE FARIAS LIMA, CPAF-AP.eng
Appears in Collections:Artigo em periódico indexado (CPAF-AP)

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