黑龙江兴凯湖国家级自然保护区的鱼类资源  

Fish Resources on Xingkai Lake National Nature Reserve,Heilongjiang Province,China

作　　者：杨富亿[1] 吕宪国[1] 娄彦景[1] 娄晓楠[1] 

机构地区：[1]中国科学院湿地生态与环境重点实验室,中国科学院东北地理与农业生态研究所,长春130012

出　　处：《动物学杂志》2012年第6期44-53,共10页Chinese Journal of Zoology

基　　金：科技部基础性工作专项项目(No.2006FY110600)

摘　　要：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。The fish resources in Heilongjiang Xingkai Lake National Nature Reserve were surveyed from May 2009 to January 2012. Total of 67 species were accumulatively recorded, 60 of them were indigenous. The realm of fish in Xingkai Lake is formed by 55% palaeoarctic realm species, and 45% oriental realm species, fish species belonged to Cypriniformes was the largest fish group. Most individual of fish harvested was smaller at age of 1 - 2 in the duration of 2009 to 2011. Over exploration on the fish resource is the main problem in the reserve.

关 键 词：鱼类区系 种群结构 资源保护 兴凯湖国家级自然保护区 

分 类 号：S932.4[农业科学—渔业资源]