Population biology of the freshwater crab Dilocarcinus pagei Stimpson, 1861 (Decapoda: Trichodactylidae) in the Araguari River, south-eastern Brazil

Página do item simplificado
dc.contributor.authorBarboza, A. C.G.
dc.contributor.authorNogueira, C. S. [UNESP]
dc.contributor.authorCalixto-Cunha, M.
dc.contributor.authorLonde, B. P.
dc.contributor.authorJacobucci, G. B.
dc.contributor.institutionUniversidade Federal de Uberlândia (UFU)
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.date.accessioned2023-07-29T13:52:01Z
dc.date.available2023-07-29T13:52:01Z
dc.date.issued2023-01-01
dc.description.abstractDilocarcinus pagei is a freshwater crab that has a wide distribution in South America, occurring in the main river basins of Brazil. Our study analysed some aspects of the population biology of D. pagei in a population that occurs in the Araguari River, in south-eastern Brazil. Crabs were sampled between September 2020 and November 2021. The population structure was analysed according to the organisms’ size, sex and life stage. The frequency of demographic groups (adults and juveniles) over months was assessed using an environmental gradient analysis and a canonical correspondence analysis (CCA). A total of 392 crabs were collected, 282 males and 110 females. Male crabs were more abundant during most of the sampling period. Thus, the sex ratio in general and for most months was biased towards males. Gradient and CCA analyses showed seasonality in the occurrence of ovigerous females. This demographic group was more frequently sampled when the local rainfall increased. Our study provides relevant information about the population and reproductive biology of D. pagei, which may contribute to the understanding of the reproductive traits of freshwater crabs and also the ecological role of this species in the environments it inhabits.en
dc.description.affiliationLaboratory of Ecology of Aquatic Ecosystems (LEEA) Institute of Biology Federal University of Uberlândia (UFU)
dc.description.affiliationLaboratory of Biology of Marine and Freshwater Shrimps (LABCAM) Department of Biological Sciences Faculty of Sciences São Paulo State University (UNESP)
dc.description.affiliationUnespLaboratory of Biology of Marine and Freshwater Shrimps (LABCAM) Department of Biological Sciences Faculty of Sciences São Paulo State University (UNESP)
dc.format.extent427-444
dc.identifierhttp://dx.doi.org/10.1080/00222933.2023.2190547
dc.identifier.citationJournal of Natural History, v. 57, n. 5-8, p. 427-444, 2023.
dc.identifier.doi10.1080/00222933.2023.2190547
dc.identifier.issn1464-5262
dc.identifier.issn0022-2933
dc.identifier.scopus2-s2.0-85153103799
dc.identifier.urihttp://hdl.handle.net/11449/248727
dc.language.isoeng
dc.relation.ispartofJournal of Natural History
dc.sourceScopus
dc.subjectBrachyura
dc.subjectMinas Gerais
dc.subjectpopulation dynamics
dc.subjectreproductive biology
dc.subjectseasonality
dc.titlePopulation biology of the freshwater crab Dilocarcinus pagei Stimpson, 1861 (Decapoda: Trichodactylidae) in the Araguari River, south-eastern Brazilen
dc.typeArtigo
unesp.author.orcid0000-0003-2118-565X[1]
unesp.author.orcid0000-0001-8539-0551[2]
unesp.author.orcid0000-0002-5870-7485[3]
unesp.author.orcid0000-0001-7567-4710[5]

Arquivos

Coleções

Artigos - Ciências Biológicas - São Vicente