Population structure of Centropomus parallelus Poey, 1860 caught by fishing activity in the Barra do Una Sustainable Development Reserve (Peruíbe / SP) Leandro Dioni Teixeira, Patrícia de Oliveira, Ursulla Pereira Souza, Milena Ramires

Abstract

Snooks are target species for recreational and artisanal fishing along the Brazilian coast, due to their high economic value and quality in terms of meat flavor. Research that contemplates biological data has been fundamental for the conservation of resources. The objective of the study was to analyze the population structure of Centropomus parallelus from the Barra do Una Sustainable Development Reserve (Peruíbe / SP). Specimens of snook C. parallelus captured by artisanal and recreational fishing were analyzed in relation to sexual proportion and total length. Of the 350 specimens, the majority were female (n = 175), with the highest catch in January (n = 28). The 123 males were more frequent in February (n = 29) and 52 immatures occurred mainly in August (n = 15). The range of variation of the total length was 13 to 65 cm, with a predominance of the class 41 to 47 cm for the three groups. The sex ratio was significantly different with females more abundant than males. Significant difference in the distribution of total lengths of females, males and immatures, with immatures being significantly smaller than females and males.