The population structure of zooplankton was investigated at Daxingkai Lake in May, July and September 2001. There were 32 species of zooplankton, in which rotifera (43.8%), protozoa (31.2%), cladocera and copepoda (25% ) were of the predominate.

• 于2001年5、7、9月份对大兴凯湖浮游动物的群落结构进行了研究,结果表明:浮游动物共计32种,以轮虫为主,占43 8%25,原生动物占31 2%25,枝角类、桡足类各占12 5%25;