广西保护区淡水鱼类的联系及分布

记录了广西木伦等6个保护区的鱼类72种，并应用弦距离系数比较了6保护区内水系的联系程度。6保护区的鱼类区系以老第三纪原始类群后裔种类为主，此外，还有东亚特有江河平原鱼类，南亚暖水性类群鱼类。云跺高原东部种类也有分布，除木伦保护区鱼类属东洋区南亚亚区的云贵高原鱼类外，其余的保护区属南东亚亚区华南小区。

The connection and distribution of fresh water fish in conservation areas in Guangxi province

species of fish in Mulan and other areas in Guangxi.The chord distance was used to compare the degree of correlation water district among the six conservation area.They mainly consist of the descendants of ancient fish groups in the old third century.In addition,they have the character fish of river plain in east Asia,as well as fish in the east of Yungui plateau.All the conservation areas are south China cover.Second cover of south east Asia,Except the Mulan conservation area which is the fish in Yungui plateau in second area of south Asia east pacific ocean.