| 怒江流域大型底栖动物资源状况 |
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| 引用本文： | 李斌,张耀光,岳兴建,刘绍平,王志坚.怒江流域大型底栖动物资源状况[J].淡水渔业,2011,41(3):3-9. |
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| 作者姓名： | 李斌 张耀光 岳兴建 刘绍平 王志坚 |
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| 作者单位： | 1. 淡水鱼类资源与生殖发育教育部重点实验室,水产科学重庆市市级重点实验室;西南大学生命科学学院,重庆400715
2. 中国水产科学研究院长江水产研究所,武汉,430223 |
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| 摘 要： | 2007年4月到2008年8月对怒江流域大型底栖动物种类组成、分布和生物量先后进行了5次调查,共获得大型底栖动物53种,隶属于5门,7纲,42科,其中水生昆虫是怒江流域鱼类饵料的重要来源之一.怒江流域42个采样点大型底栖动物密度、生物量分布从上游到下游呈高—低—高的变化规律,其密度和生物量值的变化范围分别为5.55～4...
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| 关 键 词： | 大型底栖动物 聚类分析 怒江流域 |
A study on resource distribution of macrozoobenthos in the Nu River basin |
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| LI Bin,ZHANG Yao-guang,YUE Xing-jian,LIU Shao-ping,WANG Zhi-jian.A study on resource distribution of macrozoobenthos in the Nu River basin[J].Freshwater Fisheries,2011,41(3):3-9. |
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| Authors: | LI Bin ZHANG Yao-guang YUE Xing-jian LIU Shao-ping WANG Zhi-jian |
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| Abstract: | From April 2007 to August 2008,5 surveys(2 and 5 times in Tibet and Yunnan,respectively) were carried out to investigate the macrozoobenthos species composition,distribution and biomass in the Nu River basin.53 macrozoobenthos species belonging to 42 families,7 classes and 5 phyla were identified from 42 sites of the river.Aquatic insects were important food for fish in the river,where the distribution trend of macrozoobenthos density and biomass(from upstream to downstream) presented a high-low-high mode.In addition,the macrozoobenthos density and biomass were about 5.55～457.4 ind./m2 and 3.89～14405.9 mg/m2 along the river,respectively,and the more alike of the habitat sites,the more similar of the macrozoobenthos composition revealed by cluster analysis. |
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| Keywords: | Macrozoobenthos Cluster Analysis Nu River Basin |
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