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Annual, seasonal and spatial variation of abundance of the shrimp Artemesia longinaris (Decapoda: Penaeoidea) in south-eastern Brazil

Published online by Cambridge University Press:  21 February 2005

Rogério C. Costa ,
Adilson Fransozo ,
Antonio L. Castilho  and
Fúlvio A.M. Freire
Rogério C. Costa
Affiliation:
NEBECC (Group of Studies on Crustacean Biology, Ecology and Culture), Brazil Departamento de Zoologia, Setor de Ciências Biológicas, Universidade Federal de Curitiba, UFPR, 81531-980, Curitiba, Paraná, Brazil
Adilson Fransozo
Affiliation:
NEBECC (Group of Studies on Crustacean Biology, Ecology and Culture), Brazil Departamento de Zoologia, Instituto de Biociências, Universidade Estadual Paulista, 18.618.000 – Botucatu, s/n São Paulo, Brazil
Antonio L. Castilho
Affiliation:
NEBECC (Group of Studies on Crustacean Biology, Ecology and Culture), Brazil Departamento de Zoologia, Instituto de Biociências, Universidade Estadual Paulista, 18.618.000 – Botucatu, s/n São Paulo, Brazil
Fúlvio A.M. Freire
Affiliation:
NEBECC (Group of Studies on Crustacean Biology, Ecology and Culture), Brazil Departamento de Zoologia, Instituto de Biociências, Universidade Estadual Paulista, 18.618.000 – Botucatu, s/n São Paulo, Brazil
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Abstract

The influence of several environmental factors on the abundance and spatial–temporal distribution of the shrimp Artemesia longinaris were investigated from January 1998 to December 1999 in the Ubatuba region of São Paulo State, Brazil. Collections were performed monthly in the bays of Ubatumirim (UBM), Ubatuba (UBA) and Mar Virado (MV). Six sampling transects were established in each bay, four were parallel to the shore line, and two were next to the rocky shores. A commercial shrimp fishing boat equipped with two ‘double-rig’ nets was used. A total of 11,503 individuals was collected, including 1633 from UBM, 6344 from UBA and 3526 from MV. The majority of the captured specimens came from the deeper areas (15 to 20 m) with high salinity (34 to 36 ppt). The highest abundance of A. longinaris in Ubatuba bay was recorded in areas where fine and very fine sand comprised more than 70% of the sediment. Moreover, the abundance of A. longinaris followed a seasonal trend, being higher during the summer, when intrusions of cold South Atlantic Coastal Waters (SACW) are frequent. Thus, type of sediment, temperature and salinity are determinant factors in the distribution of A. longinaris in the studied region.

Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 85 , Issue 1 , February 2005 , pp. 107 - 112
Copyright
2005 Marine Biological Association of the United Kingdom

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