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三峡库首鱼类分布格局的水声学探测评估(英文)
Authors
常剑波
李新辉
谭细畅
陶江平
Publication date
1 January 2008
Publisher
Abstract
2007年4月19-24日,应用EY60回声探测仪三峡水库库首区域的鱼类分布格局进行了水声学探测。研究发现:三峡大坝坝前至巫山干流江段鱼类分布不均匀,密度范围为0.718~37.46ind./1000m3,均值为3.117 ind./1000m3;鱼类主要分布的区域为支流河口及码头等位置,其中船闸通道位置密度最高;垂直分布上鱼类主要分布在30~60m的水层。分析认为,三峡库首区域鱼类的分布可能与浮游生物的丰富度有关。另外本文分析了三峡库区探测中鱼类个体目标强度的分布及信号过滤,以便下一步水声学探测研究的
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Institute of Hydrobiology, Chinese Academy Of Sciences
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oai:ir.ihb.ac.cn:152342/410
Last time updated on 15/03/2018