广西鱼类一新纪录:唐鱼(鲤形目:鲤科)

A New Record of Fish Tanichthys albonubes (Cypriniformes:Cyprinidae) in Guangxi,China

于2008年在广西一山涧小溪发现了国家Ⅱ级保护野生动物唐鱼(Tanichthys albonubes)种群,属、种均为广西新纪录。与广东从化野生唐鱼比较,广西唐鱼背鳍、腹鳍和臀鳍有明显黑色斑纹,尾柄较高,广西唐鱼种群在可量性状主成分分析上与广东从化唐鱼野生种群可以明显区分开来。我们还对唐鱼栖息地生境与环境进行了调查,栖息地为一条山涧小溪,溪流落差大,水质清澈呈酸性,水草茂盛。

A wild population Tanichthys albonubes which has been listed a second-class state protected species was discovered in Guangxi,China.Compared with the wild population of Conghua,Guangdong,the fish found in Guangxi has obvious black strip on the dorsal fin,pectoral fin and anal fin,and its caudal peduncle is higher.The principal component analysis on the morphometric characters distinguished the population found in Guangxi from the population in Conghua,Guangdong.This fish inhabits in clear and acidic stream with fast current and lush float grass in the mountainous region.