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2009年5月～2012年1月,对黑龙江兴凯湖国家级自然保护区的鱼类资源状况进行了调查。调查结果表明,兴凯湖保护区共有鱼类7目15科49属67种,其中土著鱼类7目13科42属60种;鱼类组成具有典型的古北界区系特征,鲤科鱼类是其中最大的类群,构成区系成分的主体;经济鱼类种群以小型种类为主体,年龄结构偏低;渔获物种类小型化、个体低龄化;种群资源量和渔获量都在下降。兴凯湖保护区的鱼类资源呈衰退趋势。
From May 2009 to January 2012, the status of fish resources in Xingkai Lake National Nature Reserve in Heilongjiang Province was investigated. The survey results show that there are 67 species, 7 families, 15 families, 49 genera, and 7 species of fish in Xingkai Lake Nature Reserve. Thereinto, there are 60 species of 7 species, 13 families, 42 genera and 60 species of indigenous fish. The fish composition is typical of Palaearctic flora, Classes are the largest among them and constitute the main body of the floristic composition. The economic fish stocks are mainly of small species with low age structure; the species of catches are small and the individuals are younger; the population resources and catches are declining . Fish resources in Xingkai Lake reserve showed a declining trend.