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1996～ 1998年对黄海北部对虾放流区进行了调查 ,共获得浮游动物 38种 ,优势种为小拟哲水蚤、克氏纺锤水蚤、大同长腹剑水蚤、尖尾海萤。浮游动物生物量 3年总的趋势是逐年增加 ,总平均值为 86 8 8mg/m3,比 1991～ 1992年有所增加。总体分析后认为 :浮游动物生物量不是造成对虾回捕率下降的原因
From 1996 to 1998, a survey was conducted on the release area of shrimp in the northern part of the Yellow Sea. A total of 38 species of zooplankton were obtained. The dominant species were Daphnia maggot, Daphnia magna, Daphnia magna, and Apocynophora. The three-year general trend of zooplankton biomass increased year by year with a total average of 86.88 mg / m3, an increase from 1991 to 1992. According to the overall analysis, zooplankton biomass is not responsible for the drop in the recovery rate of shrimp