秋季舟山渔场桁杆虾拖网渔获组成分析

桁杆拖虾网目前已成为东海区的主要作业方式之一。2013年10月和11月,在桁杆虾拖网作业渔船上采用现场随机取样的方法,对在舟山渔场近海水域进行拖虾作业的桁杆虾拖网渔船进行了海上渔获组成抽样调查。通过鉴定、分析:渔获物中共有36个种类。其中:鱼类16种、虾类10种、蟹类9种、口足类1种。渔获重量统计结果:虾类占33.42%、鱼类占32.85%、蟹类占29.05%、口足类占4.69%,鱼类和蟹类是主要的副渔获种类。

Analysis of the Catch Composition of Shrimp Beam Trawl in Zhoushan Fishing Ground in Autumn

Shrimp beam trawl has become one of the main operations in the East China Sea. In November 2013, we took out a survey of the catch composition with shrimp beam trawl in the offshore waters of the Zhoushan fishing ground. The catch was sampled randomly in a shrimp beam trawl vessel. With the identification and analysis, the total species of catches were 36 kinds, including 16 kinds of fishes, 10 kinds of shrimps, 9 kinds of crabs and 1 kind of stomatopoda. Based on the result of weight analysis, shrimps accounted for 33.42 %, fishes accounted for 32.85%, crabs accounted for 29.05 %, stomatopoda accounted for 4.69%, Bycatches were mostly fishes and crabs.