长江三角洲淡水鱼类区系研究

Study on the Freshwater Fish Fauna of Yangtze River Delta

整理了长江三角洲地区淡水鱼类名录,并对该地区淡水鱼类的区系组成进行了分析。结果表明,长三角地区共有淡水鱼类220种,隶属14目35科109属。该地区淡水鱼类可分为6个区系复合体:中国江河平原鱼类区系复合体,98种;南方热带平原鱼类区系复合体,65种;中印山区鱼类区系复合体,5种;北方平原鱼类区系复合体,5种;北方山区区系复合体,5种;上第三纪鱼类区系复合体,7种。其他种类为河口及洄游性鱼类。长三角地区鱼类区系以东亚特有的江河平原鱼类为主。

After summarizing the data of specimens from Yangtze River delta region, the fauna components of fresh water fishes in this region were analyzed. The main results are summarized as follows： The fish fauna in this region is composed of 220 species, belonging to 14 orders, 35 families and 109 genera. According to Nikolskyg unit of analysis in zoogeographical studies, the fauna-complex, 185 specimens of native fresh-water fishes in Yangtze River delta region comprise six different fauna-complexes ： Fanua-complex of China plain with 98 species ; Fauna- complex of India plain with 65 species; Fauna-complex of China-India mountain with 5 species; Fauna-complex of Northern plain with 5 spe- cies ; Fauna-complex of Northern mountain with 5 species ; Fauna-complex of upper Tertiary with 7 species, and the others are estuarine and migratory fishes. The species in the fish fauna are mostly endemic in river plains in East Asia.