广西河池地区鱼类资源调查及两支流的鱼类多样性比较

于1994年至2008年间，对广西河池地区的柳江水系和红水河水系进行了鱼类资源调查。依据实际调查，并结合以往文献记载，这两水系中分布的鱼类共有185种，分别隶属于9目21科107属。较以前调查，新增种类21种，包括1新属19新种。柳江水系分布的鱼类共有134种，分别隶属于8目19科88属。其中，鲤形目鱼类的种类最多，鲈形目鱼类次之，鲇形目鱼类第三，其他目的鱼类种类相对较少，仅1—3种。红水河水系分布的鱼类共有157种，分别隶属于8目20科101属。其中，鲤形目鱼类的种类最多，鲇形目鱼类次之，鲈形目鱼类第三，其他目的鱼类种类相对较少。红水河水系的鱼类多样性较柳江水系丰富，其主要原因为红水河流经区域喀斯特地貌发育，地下河流众多而且流域面积广，水量充沛。

Investigation of Fish Resources in Hechi Prefecture of Guangxi Province,with Comparison of Fish Biodiversity Between Two Tributaries

Field surveys were conducted in the freshwater ichthyfauna of the Liu River and the Hongshui River in the Hechi Prefecture, Guangxi Province between 1994 to 2008. According to the field surveys and reference records, the two rivers harbor a total of 185 species belonging to 9 orders, 21 families, and 107 genera. Compared with previous investigations, 21 species were newly discovered in this area, including 1 new genus and 19 new species. There is a total of 134 fish species in the Liu River, under 8 orders,...