昆明学院学报

2006年3月至2007年3月,对澜沧江下游干流罗梭江的鱼类进行了调查,采集到标本5 765号,共46种,分属4目10科37属.鲤形目鱼类有31种,鲇形目有10种,鲈形目4种,合鳃鱼目只有1种.与历史记录相比较,鱼类的种类由73种减少为46种.采集到在《中国濒危动物红皮书.鱼类》中列出的裂峡鲃(Hampala macrolepidota),魾(Bagarius bagarius)和湄南缺鳍鲇(Kryptopterus moorei).罗梭江鱼类区系是以喜温的"老第三纪类群"中的热带河流和泛洪平原鱼类为主要成分,为典型的东南亚热带鱼类区系类型.南拉河鱼类面临过度捕捞、水质污染、外来种等影响.

From March 2006 to March 2007,investigations on fishes in Luosuo River,a branch of the Lancangjiang River downstream were carried out,5765 specimen were collected,in which there are a total of 46 species belonging to 4 orders,10 families,and 37 genera in Luosuo River.The species of Cypriniformes are dominant,including 31 species.Siluriformes Perciformes have 10 species.Perciformes have 4 species.Synbranchiformes have 1 species.Compared with historical recordation data,the number of fish species of Luosuo River has declined from 73 to 46.Three endangered fish in China Red Data Book of Endangered Animals Fishes were collected,which are Hampala macrolepidota,Bagarius bagarius,Kryptopterus moorei.The composing of Fish fauna of the Luosuo River is mainly made up of 'old Tertiary groups' of tropical rivers and flood plains,which is typical in tropical Southeast Asia.The fishes of Luosuo River are impacted by overfishing,water pollution,introduced species.