洛河东湖水生生物现状调查及水质评价

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摘要：

洛河东湖是是洛阳市水生态文明城示范区的重要组成部分.为了合理开发利用河水资源,监测拦河坝修建前后洛河东湖水生生物资源和水质变化情况,2015年8月对洛河东湖的水生生物资源进行调查研究,根据生物多样性指数对湖水水质进行评价.结果表明:(1)洛河东湖浮游植物有6个门类41个种,浮游动物3个门类19个种,底栖动物3个门类8个种;(2)浮游植物优势种类主要为梅尼小环藻(Cyclotella meneghiniana)、盘星藻(Pediatrum sp.)、栅藻(Scenedesmus sp.)、尖尾蓝隐藻(Chroomonas acuta),浮游动物优势种主要是剪形臂尾轮虫(Brachionus forficula)和壶状臂尾轮虫(Brachionus urceus),底栖动物优势种主要是铜锈环棱螺(Bellamya aeruginosa)和中国圆田螺(Cipangopaludina chinensis);(3)浮游植物Shannon多样性指数(H)、Marglef指数(D)和物种均匀度指数(J)分别为3.19~3.91,2.94~3.48和0.71~0.88,浮游动物3种多样性指数分别为2.25~3.18,1.46~3.33和0.74~0.89,底栖动物分别为1.53~2.05,1.44~1.84和0.44~0.73,水质评价为清洁—轻度污染.

Luohe East Lake was an important part of Water Ecological Civilization City Demonstration Area in Luoyang.In order to properly use the river resources and monitor the variation of aquatic resources and water quality of the Luohe East Lake when the dam was constructed,the aquatic biological resources in the Luohe East Lake were investigated in August 2015,and the water quality was evaluated according to the biodiversity index.The results showed that:(1)A total 41 species of phytoplankton were identified,belonged to 6.phyla in the Luohe East Lake.There were 19 species,belonged to 3.phyla in zooplankton.Benthic fauna were 8 species,belonged to 3 Phyla;(2)the dominant species of phytoplankton were Cyclotella meneghiniana,Pediatrum sp.,Scenedesmus sp.and Chroomonas acuta.The dominant species of zooplankton were Brachionus forficula and Brachionus urceus.Benthic fauna were Bellamya aeruginosa and Cipangopaludina chinensis;(3)Shannon diversity index(H),Marglef Index(D)and Species Evenness index(J)of Phytoplankton were 3.19-3.91,2.94-3.48 and 0.71-0.88 respectively,Zooplankton were 2.25-3.18,1.46-3.33 and 0.74-0.89,Benthic fauna were 1.53-2.05,1.44-1.84,and 0.44-0.73.Water quality of Luohe East Lake was in clean-mild pollution level.

作者：

李学军杨俊顾钱洪张曼

Li Xuejun;Yang Jun;Gu Qianhong;Zhang Man(College of Fisheries,Henan Normal University,Xinxiang 453007,China)

机构地区：

betway官方app 水产学院

出处：

《betway官方app 学报：自然科学版》 CAS 北大核心 2019年第3期86-91,2,共7页

基金：

国家自然科学基金(31601851) 河南省产学研合作项目(142107000036) 河南省重点科技攻关项目(122102310357)

关键词：

洛河东湖水生生物多样性指数拦河坝

Luohe East Lake Aquatic organisms diversity index dam