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Breeding period of the arrow crab Stenorhynchus seticornis from Couves Island, south-eastern Brazilian coast

Published online by Cambridge University Press:  21 November 2002

Valter José Cobo
Valter José Cobo
Affiliation:
NEBECC—Group of Studies on Crustacean Biology, Ecology and Culture, Laboratório de Zoologia, Departamento de Biologia, UNITAU, Pça. Marcelino Monteiro, 63, CEP 12030-010, Taubaté, (SP) Brasil, E-mail: [email protected]
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Abstract

This study focused on the breeding period of Stenorhynchus seticornis (Brachyura, Majidae, Inachinae) in the south-eastern Brazilian coast. Monthly collections were accomplished from January to December of 2000. A catch effort of approximately 4 h was allocated to each monthly survey. The breeding intensity was determined as the percentage of ovigerous crabs within the whole adult female population. A total of 204 adult females were obtained, from which 74·5% presented eggs attached to their pleopods. Ovigerous females were observed year-round, usually comprising more than 60% of sampled adult females. The ovigerous frequency was not found to be correlated with either temperature or salinity.

Type
Short Communication
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 82 , Issue 6 , December 2002 , pp. 1031 - 1032
Copyright
© 2002 Marine Biological Association of the United Kingdom

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