Abstract
The fishery on Penaeidae shrimp is done all over the Brazilian coast, especially the seabob shrimp (Xiphopenaeus kroyeri). It is captured in large quantities in the Southeast and Southern Brazil. In order to study the population structure of X. kroyeri from Anchieta Municipality, Espirito Santo State, during the period from January to December 2008, monthly samplings with one-hour-long were conducted to verify the number of individuals, biomass, sex, total length and gonad maturity stage. The specimens had total length ranging from 2.96 to 9.96 cm, and females were larger than males. It is suggested that the population of X. kroyeri presents patterns of recruitment and reproduction similar to those of the Northeast region. The estimated size of first gonadal maturation was 4.5 and 6.9 cm for males and females, respectively. The fishing operates on a stock composed of predominantly adult males and juveniles and adult females. The mesh size of the nets and the high plant biomass in the fishing areas may be contributing to the increased catch of juveniles, undermining the recruitment of X. kroyeri.
Highlights
Shrimps of the suborder Dendrobranchiata are among the most important marine fishery resource worldwide (COSTA et al, 2007)
The family Penaeidae contributes with some of the most commercially important crustacean caught in the Southeastern and Southern coast of Brazil, which have significant historical, social and commercial relevance (BRANCO, 2005; D’INCAO et al, 2002)
Along the Brazilian coast, numerous informations are presented relative to fishery, morphological parameters, reproductive period and recruitment of X. kroyeri, with regional divergences in relation to these attributes (GRAÇA-LOPES et al, 2007)
Summary
Shrimps of the suborder Dendrobranchiata are among the most important marine fishery resource worldwide (COSTA et al, 2007) In this suborder, the family Penaeidae contributes with some of the most commercially important crustacean caught in the Southeastern and Southern coast of Brazil, which have significant historical, social and commercial relevance (BRANCO, 2005; D’INCAO et al, 2002). The family Penaeidae contributes with some of the most commercially important crustacean caught in the Southeastern and Southern coast of Brazil, which have significant historical, social and commercial relevance (BRANCO, 2005; D’INCAO et al, 2002) Among these crustaceans, X. kroyeri is one of the most important species for the fishing economy of the. Along the Brazilian coast, numerous informations are presented relative to fishery, morphological parameters, reproductive period and recruitment of X. kroyeri, with regional divergences in relation to these attributes (GRAÇA-LOPES et al, 2007). This study aimed to provide information about population parameters of X. kroyeri captured in the municipality of Anchieta
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