团结水库浮游动物群落结构与水质评价

Community Structure of Zooplankton and Assessment of the Water Quality in Tuanjie Reservoir

摘要: 2020年9月(秋季)、2021年5月(春季)、2021年7月(夏季)，分别对团结水库浮游动物进行调查。共鉴定浮游动物28种，其中原生动物8种，占总物种数的28.57%，轮虫12种，占总物种数的42.86%，枝角类3种，占总物种数的10.71%，桡足类5种，占总物种数的17.86%。该水库浮游动物以轮虫为主，枝角类和桡足类种数较少。浮游动物总丰度秋季最高为21,060.65 ind/L，总生物量春季最高为35.61 mg/L。该水库水体各季节理化因子的平均值呈现出季节性差异。Shannon-Wiener指数和Pielou均匀度指数分别为2.46~3.76和0.36~0.64。水质评价结果多为轻污，偶有中污。

Abstract: Zooplanktonin in Tuanjie Reservoir were investigated separately in September 2020 (fall), May 2021 (spring), and July 2021 (summer). 28 species of zooplankton were identified, of which 12 species were protozoas, accounting for 28.57%, 12 species were rotifers, accounting for 42.86%, 3 species were ccladoceros, accounting for 10.71%, and 5 species were copepods, accounting for 17.86%. Rotifers were the main species of zooplankton in the reservoir, and cladoceros and copepods were few. The total abundance of zooplankton peaked at 21,060.65 ind/L in autumn. In spring, the total biomass reached a maximum of 35.61 mg/L. The mean values of physical and chemical factors in the reservoir showed seasonal differences. Shannon-Wiener index and Pielou index were 2.46~3.76 and 0.36~0.64, respectively. The evaluation results show that the water quality is mostly light pollution, occasionally middle level pollution.