(Freeding of the fishes presents in the sea-bob-shrimp (Xiphopenaeus kroyeri) fishery in the Santos Bay and Perequê Beach, São Paulo State, Brazil.)

Abstract

This work presents the analysis of stomach content of 602 specimens of fishes catch from monthly samples of fisheries trawl directed to sea-bob shrimp in Santos Bay and Perequê Beach, São Paulo State, from August 1980 to July 1981. Specimens of 33 species of fishes (14 families) were studied, with predominance of specimens of small size (medium length of 138 mm). The ichthyofauna analyzed showed a high percent of stomachs with food (92%), mainly composed of crustaceans, especially Decapoda Natantia. Acetes americanus americanus (acetes-shrimp), Polychaeta, Teleostei and Xiphopenaeus kroyeri (sea-bob-shrimp) were in descendent order, the most frequent among the identified items. According to the variety and frequency of the food items in the stomachs contents, most of the studied species feed close to the bottom of the sea. The sea-bob-shrimp, although common in the region, was not the principal item in the stomach as it was expected. From 33 species of fishes studied, this item occurred just in 13 of them and only two species (Cynoscion virescens and Nebris microps) presented it with higher frequency.