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根据2010年7月至2011年6月对浙南沿岸张网渔获物采样调查,研究分析带鱼等6种经济种类幼体分布及张网作业对其的损害。结果表明,带鱼幼鱼出现季节主要在6月至9月,各月样品中重量占比分别为3.17%、3.60%、1.44%与2.63%,平均体重分别为1.1 g、2.2 g、1.8 g与3.9 g;银鲳幼鱼出现季节主要在5月至6月,样品中重量占比分别为0.39%与3.58%,平均体重分别为0.5 g与5.8 g;梅童鱼幼鱼出现季节主要在6月,样品中重量占比为2.27%,平均体重为1.5 g;鳓幼鱼仅在9月出现,样品中重量占比为1.69%,平均体重为6.2 g;三疣梭子蟹幼体出现季节主要在6月与9月,样品中三疣梭子蟹重量占比分别为0.76%与0.69%,平均体重分别为0.6 g与0.9 g;口虾蛄幼体出现旺季主要在9月至10月,样品中重量占比分别为10.5%与9.21%,平均体重分别为3.5 g与4.8 g。
According to the sampling survey of fish caught in the net of south Zhejiang coast from July 2010 to June 2011, the distribution of larvae in 6 economic species such as hairtail and the damage caused by the net work were analyzed. The results showed that the juveniles of juvenile larva were mainly from June to September. The percentages of juvenile juvenile hairtail were 3.17%, 3.60%, 1.44% and 2.63%, respectively. The average body weights were 1.1 g, 2.2 g, 1.8 g and 3.9 g. The juvenile silver fishes appeared mainly from May to June, with the proportion of 0.39% and 3.58% respectively, with the average body weight of 0.5 g and 5.8 g respectively. Month, the sample weight accounted for 2.27%, the average weight of 1.5 g; juvenile juvenile only in September, the sample weight accounted for 1.69%, the average body weight of 6.2 g; Portunus trituberculatus juvenile season appears mainly in 6 Month and September, the weight of Portunus trituberculatus in samples was 0.76% and 0.69%, respectively, with the average body weight of 0.6 g and 0.9 g respectively. The peak season of shrimp and shrimp was mainly from September to October, Respectively, 10.5% and 9.21%, the average body weight were 3.5 g and 4.8 g respectively.