摘要
为了解永定河系鱼类种群组成及区系分布特点,根据2016年永定河系鱼类调查及文献资料,汇总了永定河系鱼类种类资料,分析永定河系属于江河平原区。根据鱼类历史概况计算了鱼类损失指数,结果表明,永定河系鱼类现状调查及整理共有44种,以中下层鱼类、杂食性鱼类,小型鱼类、小个体鱼类为主。鲤科鱼种类所占比例50%,种类数最多,其他种类较少。现存种类与历史统计种类鱼类重合31种,13种未出现在历史记录数据中,可能为历史调查不全面。因此将不重合的种类也纳入历史数据中,计算鱼类生物损失指数为0.667,鱼类指标赋分为48.93,属于“亚健康”等级。应加强永定河的生态保护力度,恢复鱼类的栖息地。
To understand the population makeup and fauna distribution of fish stocks at Yongding River.Based on fish surveys in 2016 and relevant literature,this paper summarizes the species of fish in Yongding River,concludes that Yongding River is belong to riverplain region after analysis,and obtains the loss index of fish according to existing species and historical data.The results show that there are 44 species of fish in Yongding River system,which are dominated by middle and low-layer,omnivorous,small fishes.The proportion of Cyprinidae is 50%,with the largest number of species,and the other species are fewer.There are 31 species appeared in existing species and historical data,but 13 existing species do not appear in the historical data.The historical investigation might be incomprehensive,so the 13 species should be included in the historical data.The bio-loss index of fish is 0.667 and the marks of fish index is 48.93,which indicate that fishes are in the sub-health level.The ecological protection of the Yongding River should be strengthened to restore the fish habitat.
作者
周绪申
胡振
崔文彦
徐宁
王立明
ZHOU Xushen;HU Zhen;CUI Wenyan;XU Ning;WANG Liming(School of Civil Engineering,Tianjin University,Tianjin 300072,China;Center of Eco-environmental Monitoring and Scientific Research,Administration of Ecology and Environment of Haihe River Basin and Beihai Sea Area,Ministry of Ecology and Environment of the People’s Republic of China,Tianjin 300170,China;Water Resource Protection Research Institute of Haihe River Water Conservancy Commission,MWR,Tianjin 300170,China)
出处
《人民珠江》
2020年第7期63-69,共7页
Pearl River
基金
水体污染控制与治理科技重大专项(2018ZX07101005-1)
国家自然科学基金(51621092)。
关键词
鱼类
多样性
损失指数
生态类型
区系
永定河
fish
diversity
bio-loss index
ecological types
fauna
Yongding River
