Ontogenetic distribution of Callinectes ornatus (Decapoda, Portunoidea) in southeastern Brazil


Autoria(s): Andrade, Luciana Segura de; Fransozo, Vivian; Cobo, Valter Jose; Castilho, Antonio Leao; Bertini, Giovana; Fransozo, Adilson
Contribuinte(s)

Universidade Estadual Paulista (UNESP)

Data(s)

03/12/2014

03/12/2014

01/12/2013

Resumo

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Processo FAPESP: 97/12106-8

Processo FAPESP: 97/12108-6

Processo FAPESP: 97/12107-0

The spatial and seasonal distribution of different demographic groups of the swimming crab Callinectes ornatus was analyzed with respect to its population biology in three bays (Ubatumirim, Ubatuba, and Mar Virado) in southeastern Brazil. In each bay, monthly sampling was performed during two years along six transects, established at 5, 10, 15, and 20 m depth (parallel to the beach line), in a wave-sheltered area (7.5 m depth), and at an exposed site (10 m depth). Total abundance of crabs was similar among the bays. The presence of immature individuals, adult females, and breeding females was positively correlated with the bottom and surface temperatures, whereas adult males showed an opposite trend with respect to these factors. Immature and smaller individuals were most abundant along the sheltered and shallower transects. Males were more abundant along the shallower transects, and females at 15 and 20 m. This study revealed that different demographic groups occupy the habitat in different ways, according to local features. In general, southeastern Brazil offers a range of conditions that favor reproduction and consequently the maintenance and growth of the local population of C. ornatus, contributing to the relatively high abundance of the species in this coastal area.

Formato

371-385

Identificador

http://dx.doi.org/10.7773/cm.v39i4.2280

http://www.scielo.org.mx/scielo.php?pid=S0185-38802013000400004&script=sci_arttext

Ciencias Marinas. Baja California: Inst Investigaciones Oceanologicas, U A B C, v. 39, n. 4, p. 371-385, 2013.

0185-3880

http://hdl.handle.net/11449/112701

10.7773/cm.v39i4.2280

S0185-38802013000400004

WOS:000333367500004

S0185-38802013000400004.pdf

Idioma(s)

eng

Publicador

Inst Investigaciones Oceanologicas, U A B C

Relação

Ciencias Marinas

Direitos

openAccess

Palavras-Chave #coastal monitoring #differential habitat occupation #ontogeny #predatory fishing #swimming crabs
Tipo

info:eu-repo/semantics/article