摘要
对清水江流域天柱段的鱼类资源进行了调查,结果发现:共有52种(亚种),隶属4目12科41属,其中以鲤形目种类最多,鲈形目、鲇形目次之,合鳃目最少。干流分布的鱼类种类比支流多;小型野杂鱼种类多,大中型鱼类较少。近些年来鱼类资源呈减少的趋势,主要是受过度捕捞、水利工程和水域环境污染的影响。
In Tianzhu Section of Qingshui River, freshwater fish are investigated. The results show that freshwater fish have 52 species （ subspecies ） , which belong to 4 orders, 12 families, 41genera. The Cypriniformes are the most species, Perciformes and Siluriformes are less, Symbranchir are minimal. The species in main stream are more than in tributary stream. Small wild miscellaneous fish are more than large and medium fish. In recent years the fish resources have appeared a declining trend, which mainly due to overfishing, water conservancy project and water environment pollution.
出处
《四川理工学院学报（自然科学版）》
CAS
2012年第3期97-100,共4页
Journal of Sichuan University of Science & Engineering(Natural Science Edition)
基金
凯里学院服务地方经济专项课题资助项目(ZX1036)
关键词
鱼类资源
清水江天柱段
资源衰退
fish resources
Tianzhu section of Qingshui River
resource recession
