Assessment of relative abundance of fishes caught by gillnet in Vietnamese waters

Abstract

The fisheries resources in near shore waters of Vietnam are reported to be overexploited resulting on the decrease of CPUE. It is important to develop the off-shore fisheries in Vietnam now. However information on off-shore fisheries resources in Vietnam was still very limited. This study was designed in order to supply such kind of information. The study area was in off-shore waters of Vietnam. R/V BIEN DONG( 1500 Hp) with gillnet of 5 different mesh-size ( 73, 95, 123, 150 and 160 mm ) was used for survey. The species and catch composition, distribution of promising species, relative abundance of target species were described. As a results, 98 species belonged to 32 families have been identified. Skipjack tuna was dominant ( 18.5 %). Distribution of relative abundance of some major species were given.