长江上游轮虫群落纵向演替研究  

Longitudinal Succession of Rotifer Communities in the Upper Reaches of Yangtze River

作　　者：胡菊香[1] 郑金秀[1] 赵先富[1] 池仕运[1] 高少波[1] 吴生桂[1] 

机构地区：[1]水利部中国科学院水工程生态研究所,湖北武汉430079

出　　处：《水生态学杂志》2009年第2期94-100,共7页Journal of Hydroecology

基　　金：国家自然科学基金重大项目(30490233);中国长江三峡工程开发总公司生态与环境保护项目;农业部长江上游珍稀特有鱼类国家级自然保护区水生生物与自然环境综合调查联合资助;科技部水利部公益性行业科研专项(200701008);水利部公益性行业科研专项(200701029)

摘　　要：2005～2007年在长江上游通天河至重庆江段干支流设60个采样站,2003～2007年在重庆以下至三峡水库坝前水域设33个采样断面进行轮虫调查,结果在长江上游(通天河至重庆)江段共采集到138种(含亚种)轮虫,隶属于2纲、3目、22科、40属;重庆以下至三峡水库坝前共采集到167种轮虫,隶属于2纲、3目、23科、47属;三峡水库蓄水后的第1年、第2年,重庆以下至三峡水库坝前水域轮虫种类数迅速增长,到蓄水后的第3年开始下降。通过不同区域轮虫群落相似性比较,水电开发强度较大的金沙江下游与三峡库区轮虫群落相似性明显高于金沙江上中游江段,表明水电开发对金沙江下游、长江上游宜宾至重庆段轮虫群落产生了较为明显的影响。Rotifers were sampled along the upper reaches of the Yangtze River, with 60 sampling sites on main stream from the source （Tongtian River） to Chongqing in 2005 -2007, and 33 sites in the Three Gorges Reservoir （from Chongqing to the Dam） in 2003 - 2007. There were I38 species of rotifers （including subspecies） collected in the upper reaches （from Tongtian River to Chongqing） , belonging to 2 classes 3 orders 22 families and 40 genera while 167 species were collected in the reaches from Chongqing to the Dam, belonging to 2 classes 3 orders 23 families and 47 genera. The number of rotifer species increased rapidly in TGR during the first and second year after the impoundment, but decreased from the third year. The analysis of Percentage Similarity of Community （PSC） between different reaches shows that the rotifer communities have been affected by the hydropower development in the lower reaches of Jinsha River and the upper reaches of Yangtze River from Yibin to Chongqing.

关 键 词：长江上游 轮虫 群落 演替 

分 类 号：S917.4[农业科学—水产科学]