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香溪河鱼类群落组成及资源评价
Authors
蔡庆华
邵晓阳
黎道丰
Publication date
1 January 2006
Publisher
Abstract
采用定置刺网的捕捞方法,于2005年3—4月在香溪河官庄坪库湾连续捕捞20次,共调查到21种鱼类。对采集的渔获物数据,分析了多样性和种群优势度。确定上层、中上层、中下层和底层的优势类群分别是贝氏、蒙古、翘嘴、鲫、鲤、蛇、鲇。三峡水库蓄水对官庄坪鱼类群落构成影响显著:鲤科鱼类种类组成比例占总种数76.2%,其中亚科有7种,占鲤科总数的43.8%。静水性生活的鱼类所占比重较大,已经形成优势种群。经济鱼类在生物量上占有举足轻重地位,上层肉食性鱼类以蒙古、翘嘴为主。鳅科鱼类基本绝迹
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Institute of Hydrobiology, Chinese Academy Of Sciences
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oai:ir.ihb.ac.cn:152342/1286
Last time updated on 15/03/2018