| 三峡库区支流底栖动物群落结构研究 |
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| 引用本文： | 池仕运,胡菊香,陈 胜,张原圆.三峡库区支流底栖动物群落结构研究[J].水生态学杂志,2011,32(4):24-30. |
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| 作者姓名： | 池仕运 胡菊香 陈 胜 张原圆 |
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| 作者单位： | 水利部中科院水工程生态研究所,湖北武汉,430079 |
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| 基金项目： | 国家自然科学基金专项基金（５１０５１００３）；国家重大水专项（２００９ＺＸ０７５２８００３）资助。 |
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| 摘 要： | 2010年4月对三峡库区26条主要支流的底栖动物进行了采集,经鉴定共检出97种;其中,水生昆虫78种,软体动物10种,寡毛纲6种。常见种为蜉蝣科(Ephemeridae)、小蜉科(Ephemerellidae)、四节蜉属(Baetis)、细蜉属(Caenis)、宽基蜉属(Choroterpes)、扁蚴蜉属(Ecdyonurus)稚虫及直突摇蚊属(Orthocladius)、斑特突摇蚊属(Thienemanimyia)幼虫,平均密度673.22个/m2,平均生物量9.9398g/m2。MDS分析表明,御临河、龙溪河、长滩溪和嘉陵江站点明显偏离其他22条河流;种类组成聚类分析表明,抱龙河和汤溪河、童庄河和大宁河、咤溪河和黄金河、磨刀溪和小江、大溪河和官渡河、龙河与梨香溪、御临河与綦江、龙溪河与长滩溪的种类相似度较高;物种多样性分析表明,Shannon-Wiener指数变动在0.6365～2.9329,平均为1.6120;Margalef指数变动在0.6266～5.3074,平均为2.2976。本研究旨在为三峡库区水环境预警平台的建立提供必要的信息和技术支撑。
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| 关 键 词： | 三峡库区 底栖动物 物种多样性 相似度 |
| 收稿时间： | 2011/2/28 0:00:00 |
| 修稿时间： | 5/1/2011 12:00:00 AM |
Study on Community Structure of Macro-invertebrates in Tributaries of Three Gorges Reservoir |
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| chi shi yun,hu ju xiang,cheng sheng and zhang yuan yaun.Study on Community Structure of Macro-invertebrates in Tributaries of Three Gorges Reservoir[J].Journal of Hydroecology,2011,32(4):24-30. |
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| Authors: | chi shi yun hu ju xiang cheng sheng and zhang yuan yaun |
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| Institution: | Institute of Hydroecology, MWR & CAS |
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| Abstract: | Abstract: The macro-invertebrates were collected in 26 major tributaries of Three Gorges Reservoir area in April 2010. 97 species were recorded, including 78 species of aquatic insects, 10 species of mollusks, 6 species of Oligochaeta. Ephemeridae sp.,Ephemerellidae sp.,Baetis sp. Caenis sp. Choroterpes sp. Ecdyonurus sp. Othacladius sp.and Thieneminimyia sp.were common species. The average density was 673.22ind./m2 while the average biomass was 9.9398 g/m2.The result of MDS analysis showed that the sites of Yulinhe River,Longxihe River,Changtanxi River and Jialingjiang River were far away from the sites of other 22 rivers.The clustering analysis of species composition showed that there was high species similarity between Baolonghe River and Tongxihe River,as well as Tongzhuanghe River and Dalinghe River,zhaxihe River and Huangjinhe River,Modaoxi River and Xiaojiang River,Daxihe River and Guanduhe River,Longhe River and Lixiangxi River,Yulinghe River and Qijiang River,Longxihe River and Changtanxi River. The result of biodiversity analysis showed that Shannon-wiener indexes ranged from 0.6365 to 2.9329 with mean of 1.6120,while Margalef indexes ranged from 0.6266 to 5.3074 with mean of 2.2976.
Key words: Three Gorges Reservoir; Macro-invertebrates;species; Biomass; Biodiversity; Species similarity |
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| Keywords: | hree Gorges Reservoir Macro-invertebrates species Biomass Biodiversity Species similarity |
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