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上海崇明明珠湖摇蚊幼虫群落结构特征及其对水质的指示作用
引用本文:胡忠军,刘其根,陈立婧,彭自然.上海崇明明珠湖摇蚊幼虫群落结构特征及其对水质的指示作用[J].应用生态学报,2009,20(4):929-936.
作者姓名:胡忠军  刘其根  陈立婧  彭自然
作者单位:上海海洋大学农业部水产种质资源与利用重点开放实验室,上海,201306
基金项目:上海市科技兴农推广项目,上海高校选拔培养优秀青年教师科研专项基金,上海海洋大学博士启动项目和上海市重点学科建设项目 
摘    要:2006年7月至2008年4月,对上海崇明岛明珠湖摇蚊群落的结构特征进行了季节调查研究.共调查到11种摇蚊,隶属3亚科10属,优势种为红裸须摇蚊和微小摇蚊.聚类分析表明,优势种具有明显的季节性,春夏季优势种为微小摇蚊、秋季为中国长足摇蚊、冬季为红裸须摇蚊.摇蚊群落物种多样性(H′)季节间差异显著,春、秋、冬季较高,夏季最低;物种多样性与均匀度(J)和物种丰富度(S)均显著相关,但主要受均匀度的影响.摇蚊幼虫年平均密度冬季最高、秋季最低,生物量冬季最高,其他3季均处在较低水平上.红裸须摇蚊和微小摇蚊种群动态季节变化显著,而中国长足摇蚊的变化不明显.采用Shannon多样性指数和Hilsenhoff生物指数对明珠湖的水质进行了评价,表明该湖的水质等级为中污染-污染,已达富营养化水平.

关 键 词:摇蚊幼虫  物种组成  季节变化  多样性  密度  生物量  水质生物学评价
收稿时间:2008-8-24

Structural characteristics of chironomid community and their indicative significance in bioassessment of water quality in Mingzhu Lake of Chongming Island, Shanghai.
HU Zhong-jun,LIU Qi-gen,CHEN Li-jing,PENG Zi-ran.Structural characteristics of chironomid community and their indicative significance in bioassessment of water quality in Mingzhu Lake of Chongming Island, Shanghai.[J].Chinese Journal of Applied Ecology,2009,20(4):929-936.
Authors:HU Zhong-jun  LIU Qi-gen  CHEN Li-jing  PENG Zi-ran
Institution:Key Laboratory of Aquatic Genetic Resource and Utilization, Ministry of Agriculture, Shanghai Ocean University, Shanghai 201306, China
Abstract:The structural characteristics of chironomid (Diptera: Chironomidae) c ommunity in Mingzhu Lake of Chongming Island, Shanghai, China were studied from July 2006 to April 2008. A total of eleven chironomid species belonging to 10 ge nera and 3 subfamilies were collected, among which, Propsilocerus akamusi an d Microchironomus sp. were predominant. Based on clustering analysis (CA) and importance value (IV), it was found that the dominant species shifted seasonally, wi th Microchironomus sp. in spring and summer, Tanypus chinensis in autumn, an d P. akamusi in winter. There was a significant seasonal difference in the S hannon-Weaver diversity index (H′) of the chironomid community, with the l owest in summer and higher in the other three seasons. The H′ was significa ntly correlated with species richness (S) and evenness (J), and more strongly go verned by J. The average density and biomass of the chironomid community wer e the highest in winter, with a minimum density in autumn and a lower biomass in the other seasons. Among the three dominant species, P. akamusi and Micro chironomus sp. had more obvious seasonal fluctuations in their population dyna mics than T. chinensis. Based on the bioassessment methods of water quality, e.g., H′ and Hilsenhoff biotic index (BI), the Mingzhu Lake wa s considered to be moderately organically polluted and eutrophicated.
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