葛洲坝下中华鲟产卵场食卵鱼资源量的调查和分析  

Estimation on abundance of egg-predatory fishes in the spawning ground of Chinese sturgeon below the Gezhouba Dam

作　　者：罗佳[1] 姜伟[2] 陈求稳[3] 刘德富[1] 唐锡良[2] 涂志英[1] 石小涛[1,3] 

机构地区：[1]三峡大学三峡库区生态环境教育部工程研究中心,湖北宜昌443002 [2]中国长江三峡集团公司中华鲟研究所,湖北宜昌443100 [3]中国科学院生态环境研究中心,北京100085

出　　处：《淡水渔业》2013年第5期27-30,共4页Freshwater Fisheries

基　　金：楚天学者基金(KJ2010B002);国家自然科学基金(50979049;51009082;51210105017);中国博士后科学基金(20100480487);水利部公益性行业科研专项(201201030;201201028-02);中国长江三峡集团公司科研项目(SDHZ2011117);农业部海洋与河口渔业资源及生态重点开放实验室开放基金(20090011);贵州北盘江电力股份有限公司合作项目(SDHZ2012137);水利部工程生态效应与生态修复重点开放实验室开放基金

摘　　要：为了解葛洲坝下游中华鲟（Acipenser sinensis）产卵场食卵鱼的资源量，于2011年8—12月在葛洲坝下游江段，利用三层流刺网张网采集渔获物样品并进行鉴定分类。结果显示：采集渔获物共有24亚种，分属于3目5科，其中鲤形目鲤科鱼类最多，共有14种，未发现外来物种。食卯鱼铜鱼（Coreius heterodon）和瓦氏黄颡鱼（Pelteobagrus vachelli）在所捕获渔获物中所占比例较大，其中瓦氏黄颡鱼（Pelteobagrus fulvidraco）的捕捞量占总捕捞量的79．31％；在11月份的捕获物中，食卯鱼的捕捞数量足过10月和12月的2～8倍；在中华鲟产卵期间，食卵鱼的日捕获量达到最高峰。From August to December, 2011, assessment on the species and monthly change of abundance of predatory fishes, together with daily abundance change of predatory fishes during spawning season were conducted through commercial fisheries surveys by drifting net and trap net in the reach below the Gezhouba Dam where the spawning ground of Chinese sturgeon located. There were 24 subspecies of fish, which belonged to 3 orders 5 families. Among the catches, 14 species were cyprinidae and no exotic species were found. Coreius heterodon and Pelteobagrus vacheUi composed the major part of the catches, and the amount of P. vachelli occupied 79.31% of the total amount. The amount of egg-predatory fishes in November was more than of that in October and December, and it reached the peak at the spawning period.

关 键 词：葛洲坝 中华鲟产卵场 渔获物 食卵鱼 

分 类 号：S932.4[农业科学—渔业资源]