PADRONIZAÇÃO DO TAMANHO MÍNIMO DA PIRAMUTABA Brachyplatystoma vaillantii APROVEITADA EM ARRASTOS INDUSTRIAIS NO NORTE DO BRASIL: AUMENTO DA PRODUTIVIDADE SEM IMPACTO A BIODIVERSIDADE

Abstract

Establish a minimum capture size to amazon catfish fished by bottom trawl nets in Northern Brazil is an alternative in order to reduce the impact on ichthyofauna and contribute to income generation for the fishing sector. Thus, this paper aims to discuss the need to standardize a minimum size of capture and propose alternatives for your use with commercial value, without increasing the current fishing effort and the impact on stock. Previous papers define that the size ranges of zoological length from 28 to 39 cm may present sexually mature individuals, its possible to use individuals with a size of 30 to 35 cm that are currently discarded at random, according to the fisherman's decision. The lack of pattern of minimum size represents a waste of fishing effort and usable protein of around 14%, which could have been used if the 30 cm length had been adopted. For this, we highlight the need for greater research efforts on the reproduction of piramutaba, considering the immense migration area of the species and the intense fishing pressure, which reflects on the life cycle of the species.