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淮南焦岗湖轮虫群落结构特征及季节变化
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Abstract:
焦岗湖是淮河流域重要的浅水湖泊和淮河中游最大的湖泊生态湿地系统，浮游动物对湖泊生态系统结果平衡起着重要的调节作用。为研究安徽省淮南市焦岗湖浮游动物轮虫群落结构及季节变化，于2016年12月至2017年11月开展12个自然月的调查研究，采用生物多样性指数和均匀度指数评价方法对浮游动物多样性进行评价，并且分析轮虫生物量的季节变化。研究表明，秋季的浮游动物轮虫的生物量最大，夏季的生物多样性指数最高。通过生物多样性指数的评价方法，焦岗湖的水质情况为中度污染水平。
Jiaogang Lake is an important shallow lake in the Huaihe River Basin and the largest lake ecological wetland system in the middle reaches of the Huaihe River, and zooplankton plays an important role in regulating the balance of lake ecosystem results. In order to study the community structure and seasonal changes of zooplankton rotifers in Jiaogang Lake, Huainan City, Anhui Province, a 12-natural-month survey study was carried out from December 2016 to November 2017 to evalu-ate zooplankton diversity by using the biodiversity index and evenness index evaluation methods, and to analyze the seasonal changes of rotifer biomass. The study showed that the zooplankton rotifers had the highest biomass in autumn and the highest biodiversity index in summer. The water quality condition of Jiaogang Lake was found to be at moderate pollution level by the evalu-ation method of biodiversity index.
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