摘要
为基本摸清衡水湖游泳动物资源现状,2023年4月、7月、10月在衡水湖进行了 3次游泳动物资源调查.结果显示:衡水湖游泳动物共36种,其中鱼类31种,隶属于6目10科27属;甲壳类5种,隶属于1目3科5属.优势种有3种,分别为:(餐)(Hemiculter leuciclus)、似鳊(Pseudobrama simoni)和日本沼虾(Macro-brachium nip ponense).Margalef物种丰富度指数为 2.65;Shannon-Wiener 物种多样度指数为 3.24;Pielou物种均匀度指数0.65.根据调查结果提出了游泳动物资源保护与合理利用建议.
Abstract
In order to understand the current situation of the swimming animal resources in Hengshui Lake,three surveys were carried out in Hengshui Lake in April,July and October 2023.The results showed that there were 36 species of nekton in Hengshui Lake,including 31 species of fish,belonging to 6 orders,10 families,27 genera,and 5 species of crustaceans,belonging to 1 order,3 families,5 gene-ra.The dominant species were Hemiculter leuciclus,Pseudobrama simoni and Macrobrachium nippon-ense.Margalef species richness index was 2.65;Shannon Wiener species diversity index was 3.24;Pielou species evenness index was 0.65.According to the investigation results,some suggestions on the conservation and rational utilization of nekton resources were put forward.
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