黑龙江的鱼类区系

ICHTHYOFAUNA OF THE HEILONGJIANG RIVER

作者根据多年对黑龙江水系鱼类调查所获标本和参考文献资料，对黑龙江鱼类区系进行了研究。黑龙江水系共有鱼类１２０种（包括８亚种），隶属８２属２４科；河口海淡水鱼类和溯河性鱼类为２２种，纯属淡水鱼类计８９种，尚包括移植放流鱼类６种；上著鱼类仅为９２种。对９２种土著淡水鱼的分布、演变，区系组成和种群特点进行了分析和讨论。

This paper rePorts the studies on the ichthyofauna of Heilongjiang River (Amur). As known at present, there are 24 families, 82 genfrs and 120 species and subspecies of fishes recorded in the Heilongjiang kiver. The family cyprinidae is adomiriant part in fish fauna, consisting of 61 species and subspecies or 50. 8% of the total ; in addition there are 13 srecies of:almonidaf,consisting 10.8% of the total 1 8 species of cobitidae or 6.7% of the total.Based on the habit of life fish, the fishes of lleilongjiang River may begrouped into two categories: (1) the anadromous fishes and the estuar ice fishes,comprising 22 3reeles (18. 3% of the total), (2 ) the pure fresh water fishes,comprising 98 species(81. 7% of the total),among which including 6 species of artificial introduction, but belong to the indigenous fishes 92 species and subsepcies (76.7% of the total).The problem of the distribution, fauna composition of fish and populations character and evolationery changes of 92 species the indigenous fishes is discussed in the paper.