Đa dạng thành phần loài hải sản bắt gặp trong các nghề khai thác chính (lưới kéo, lưới rê, nghề rập) ở vùng biển tỉnh Bến Tre

Abstract

     This article presented results of the research on the diversity of species composition encountered in the main fishing occupations, such as trawling, gill netting and trapping in Ben Tre waters from which to determine the structure of the main species composition. The results showed that: In trawling, 235 species belonging to 158 genera in 79 families and 31 different orders have been identified, of which: fish group accounts for 67.23% (158 species), crustaceans accounted for 19.57% (46 species), molluscs accounted for 8.51% (20 species), cephalopods 4.68% (11 species). In gill netting, 89 species of 67 genera in 40 families and 20 different orders were found, of which: fish accounted for 82.02% (73 species), crustaceans accounted for 15.73% (14 species), cephalopods accounted for 2, 25% (2 species). In trapping, there were 109 species of 82 genera and 48 families in 26 different species, of which: fish accounted for 64.22% (70 species), crustaceans accounted for 24.77% (27 species), molluscs accounted for 6.42% (7 species) and cephalopods accounted for 4.59% (5 species). The structure of species composition and yield composition fluctuated according to the windy season (Southwest monsoon and Northeast monsoon), the species composition encountered in the southwest monsoon was higher than that in the Northeast monsoon. In the Southwest monsoon, 10-legged crustaceans had predominated, whereas in the northeast monsoon season, the Perciformes order had predominated.