黑龙江流域鱼类资源现状及放流鱼类选择

The situation of fish resources and selection of releasing fishes in Heilongjiang drainage basin

详细阐述、分析了黑龙江流域鱼类的资源现状及濒危状况、黑龙江流域鱼类放流现状及效果、增殖放流物种选择依据等,提出拟选择施氏鲟、达氏鳇、大麻哈鱼、驼背大麻哈鱼等11种鱼类为黑龙江水域第一批增殖放流鱼类,探讨了拟选择鱼类生态特点。最后根据黑龙江流域鱼类放流现状,提出了需要研究的问题。

Heilongjiang was the third large rivers in China. There were 105 species fishes,belonging to 71 genus 21 family 11 orders in Heilongjiang drainage basin. The current resource situation and dangerous situation of fishes in Heilongjiang drainage basin were analyzed. Acipenser schrencki Brandt, Huso dauricus Georgi, Oncorhynchus keta Walbaum and Oncorhynchus gorbuscha Walbaum, and so on （ 11 species fishes in all） were choose as the first batch fishes in Heilongjiang drainage basin, according to selection evidence of enhancement and releasing species, special geographical environment of Heilongjiang and the current resource situation of fishes and ecological environment. The ecological adaptability of preferential fishes was discussed in this paper. At the same time current releasing situation and problem needing to study in Heilongjiang drainage basin were discussed.