Advanced search
Start date
Betweenand
Related content
(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

The assemblage composition and structure of swimming crabs (Portunoidea) in continental shelf waters of southeastern Brazil

Full text
Author(s):
Andrade, L. S. [1] ; Frameschi, I. F. [1] ; Costa, R. C. [2] ; Castilho, A. L. [1] ; Fransozo, A. [1]
Total Authors: 5
Affiliation:
[1] UNESP, NEBECC, Inst Biociencias, Dept Zool, Crustacean Biol Ecol & Culture Study Gr, BR-18618000 Botucatu, SP - Brazil
[2] UNESP, NEBECC, Fac Ciencias, Dept Ciencias Biol, Crustacean Biol Ecol & Culture, BR-17033360 Bauru, SP - Brazil
Total Affiliations: 2
Document type: Journal article
Source: CONTINENTAL SHELF RESEARCH; v. 94, p. 8-16, FEB 15 2015.
Web of Science Citations: 6
Abstract

Three regions along the Brazilian coast characterized by the occurrence of contrasting natural phenomena, such as upwellings and continental input, were surveyed to determine the composition and structure of the assemblage of swimming crabs. Twelve monthly collections were undertaken (July 2010 to June 2011) in Macae, Rio de Janeiro (MAC); Ubatuba, Sao Paulo (UBA); and Sao Francisco do Sul, Santa Catarina (SFS). The lowest values of the phi sediment grain size measure, bottom temperature and the highest values of organic matter and salinity were measured in MAC. In all, 10,686 individuals were collected, belonging to six species of Portunoidea: Arenaeus cribrarius, Callinectes danae, Callinectes ornatus, Callinectes sapidus, Achelous spinicarpus and Achelous spinimanus. A Multiple Response Permutation Procedure (MRPP) test indicated that the species composition differed significantly among the sampling sites, showing substantial heterogeneity in the composition and abundance of species among regions. The results suggest that C. danae was more abundant in waters with lower salinity and lower organic matter content. In contrast, A. spinimanus is positively correlated with these factors, showing a greater abundance under the opposite conditions. Callinectes ornatus appeared not to show strong selectivity for particular habitat characteristics. We conclude from these findings that areas affected by different phenomena produce changes in the composition and abundance of the assemblage of Portunoidea. Although the strength of eutrophication differs between UBA and MAC, the substantial continental inflow affecting SFS favors the development of species that complete their life cycle in the estuary. (C) 2014 Elsevier Ltd. All rights reserved. (AU)

FAPESP's process: 09/54672-4 - Reproductive biology and dynamic population of the Penaeoidean shrimps (Crustacea, Decapoda) from southeastern Brazilian coast: latitudinal effect and suggestion for fishery control
Grantee:Rogério Caetano da Costa
Support Opportunities: Regular Research Grants
FAPESP's process: 10/50188-8 - Decapod crustaceans: multi-disciplinary characterization of the sea biodiversity of the State of São Paulo (taxonomy, spermiotaxonomy, molecular biology and population dynamics)
Grantee:Fernando Luis Medina Mantelatto
Support Opportunities: BIOTA-FAPESP Program - Thematic Grants