Efeitos do uso de artes de pesca de baixa selectividade no centro de pesca de Chuabo Dembe, cidade de Quelimane, província Zambézia

Abstract

The practice of fishing is important for the coastal communities of the town of Quelimane in the Chuabo Dembe fishing center. This work aims to analyze the effects of the use of low selectivity fishing gear in the Bons Sinais estuary, in Zambézia province. Data were collected in October, December 2018 and May 2019. In addition, fishermen were surveyed at the landing site. The collected data were introduced and analyzed in the Microsoft Office Excel package to evaluate the level of selectivity, the average catch sizes and their respective standard deviations were estimated and later compared with the sexual maturity sizes of the species obtained in the literature. Lowselectivity gear was used in those whose catch was on juveniles. The main fishing gear used during the study were: beach drag, line, surface gill, bottom gill, Longline, Chicocota, Quinia and Savega. And they were considered arts of low selectivity in the estuary of the Good Signs, the Drag for beach, Chicocota and quínia. The main species most captured were: Crystal Ocar (Tryssa vitrirostris), White Shrimp (Penaeus indicus), White Sardine (Sardinella albella) and Macujana de Barba (Johnius dussumieri). The results of the analysis of population indicators have generally indicated that catches are on juveniles, which may be linked to the use of inappropriate gear in growing areas in estuaries, which may compromise the replenishment of fountains in the future, if these practices persist.