赤水河典型支流鱼类及分布特征  

Investigation and study on the distribution of fish of typical tributaries in the Chishui River

作　　者：赵先进 李析男 袁萌 万晓安 ZHAO Xianjin;LI Xinan;YUAN Meng;WAN Xiaoan(Guizhou Water&Power Survey-Design Institute Co.,Ltd,Guiyang 550002,China;Guizhou Engineering Technology Research Center for Exploitation and Utilization of Water Resources in Karst Region,Guiyang 550002,China)

机构地区：[1]贵州省水利水电勘测设计研究院有限公司,贵州贵阳550002 [2]贵州省喀斯特地区水资源开发利用工程技术研究中心,贵州贵阳550002

出　　处：《水生态学杂志》2025年第2期114-121,共8页Journal of Hydroecology

基　　金：贵州省科技计划项目(黔科合支撑[2021]一般467)。

摘　　要：开展赤水河贵州境内典型支流的鱼类分布调查,为赤水河贵州流域综合治理及鱼类保护提供参考。2022年5—6月,在赤水河贵州境内68条支流设置146个调查断面,共采集并记录鱼类2 874尾,隶属3目11科68种,其中国家二级重点保护鱼类2种,长江上游特有鱼类16种。研究发现赤水河贵州境内支流中,鱼类的种类数随着河流比降的增加而显著减少。具有水库的支流河段鱼类数量大幅增加,对生物多样性具有重要意义。因此,在后续小水电清理整改工作中,应首先做好鱼类资源调查,科学评估影响,结合供水、防洪和灌溉等民生需要,因站施策。The fish and distribution of typical tributaries in Chishui River in Guizhou were investigated to provide reference for comprehensive management and fish protection in Chishui River in Guizhou.From May to June 2022,the survey team set 146 survey sections in 68 tributaries of Chishui River in Guizhou,and collected and recorded 2874 fish,belonging to 3 orders,11 families and 68 species,including 2 species of national second-class key protected fish and 16 species of endemic fish in the upper reaches of the Yangtze River.Research found that there was a significant correlation between the number of fish species and the change of river gradient in the tributaries of Chishui River in Guizhou.The number of fish species decreased significantly with the increase of river gradient.The number of fish in tributaries with reservoirs has increased significan tly,which is of great significance to biodiversity.In the subsequent work of small hydropower cleaning and rectification,it is necessary to first conduct a survey of fish resources,scientifically evaluate the impact,and implement policies based on th e needs of water supply,flood control,and irrigation for people's livelihoods.

关 键 词：鱼类资源 河道比降 典型支流 赤水河 

分 类 号：S932.4[农业科学—渔业资源]