绥芬河鱼类区系组成研究

绥芬河是我国注入北太平洋日本海的第二条水系。由于该水系地处寒温带,气候、地理环境和生态条件特殊,因而蕴藏着丰富的冷水性鱼类、溯河性洄游鱼类种质资源,仅大麻哈鱼类就有3种,每年5～10月回归溯河洄游:鲤科溯河性洄游鱼类有三块鱼、珠星三块鱼等,呈现出北太平洋日本海水系鱼类区系的特色,成为我国名贵珍稀经济鱼类地理分布的重要水域。在鱼类区系组成上,它与相邻的水域有着很大的差异,在我国北方水域鱼类演替和区系划分上有着重要的意义。关于绥芬河鱼类区系,国内外学者都进行过研究。笔者在2005～2006年采集了大量的鱼类标本,整理和增补了10种鱼类,对绥芬河鱼类区系作了初步的概述,为我国北方水域鱼类演替、区系区划研究、开发利用及资源保护提供了科学的依据。

Studies on composition of lchthyofauna in Suifen River

Suifen river is the second hydrographic net in China,which pours into Japan sea in Northern Pacific(NP).Due to its special climate,geographic circumstance0 and ecological conditions in Cold Temeperate Zone,there are abundant resource of cold-water fishes,up- stream-migrating fishes.There are three kinds of chums,which return upstream from May to October yearly.Dace and Japanese dace etc.of upstream-migrating carps live in the river.The hydrographic net is one of important habitat of rarely economic fishes in China,presenting char- acteristics of ichthyofauna in NP.Its compositional ichthyofauna differs from its conseeuting riv- er systems,and has momentous significance on succession of fishes and iehthyofauna dividatur in watershed of North China.Intermal and oversea scolars had investigated Ichthyofauna in Suifen River.We collected amounts of fishes samples from 2005 to 2006,put in order and add- ed to 10 species of fishes,gave preliminary overview on ichthyofauna in Suifen River,and pro- vided scientific basis for fishes succession,ichthyofauna dividatur,development and exploitation and resource protection in waters of North China.