湖南康龙自然保护区鱼类资源调查

Study on the status of fishery resources in Kanglong Nature Reserve

2007年6—7月、2010年8—9月两次对康龙自然保护区境内鱼类资源进行调查,利用网捕法和电捕法共采集到鱼类标本2000号,经鉴定共发现鱼类37种,隶属4目,10科。其中鲤形目2科27种,占73%,鲈形目5科7种,占18.9%,鲶形目2科2种,占5.4%,合鳃鱼目1科1种,占2.7%,调查发现康龙自然保护区的鱼类区系,具有较强的华东区系和华南区系双重特征,该区经济鱼类种类丰富,但是鱼类小型化、低龄化趋势显著,且出现衰退现象,鱼类资源需要加强保护。

The fishery resources of Kanglong Nature Reserve was investigated in twice from June to July 2007 and August to September 2010. The 2000 specimens were gotten by netting and electric fishing method. There are 37 species, belonging to 10 families and 4 ordem. Among them, 27 species are Cypriniformes, account for 73% ; 7 species are Pereiformes, account for 18. 9% ; 2 species are Siluriformes, account for 5.4% ; 1 specie is Symbranchiformes, account for 2. 7%. The result showed that the fish fauna of the nature reserve has a strong south and east of China fauna dual characteristic. There are abundant commercial fish resources, but the trend of miniaturization and younger age are prominent, and the phenomenon of a recession, it need to strengthen the protection of fish resources.