香溪河大型底栖动物群落结构季节动态  

Seasonal dynamics of macrozoobenthos community structure in Xiangxi River

作　　者：蒋万祥[1,2] 贾兴焕[1,3] 周淑婵[1] 李凤清[1] 唐涛[1] 蔡庆华[1] 

机构地区：[1]中国科学院水生生物研究所淡水生态与生物技术国家重点实验室,武汉430072 [2]枣庄学院生命科学系,山东枣庄277160 [3]中国林业科学研究院亚热带林业研究所国家林业局杭州湾湿地生态系统定位研究站,浙江富阳311400

出　　处：《应用生态学报》2009年第4期923-928,共6页Chinese Journal of Applied Ecology

基　　金：国家自然科学基金项目(30330140,40671197);中国科学院知识创新工程重要方向项目(KZCX2-YW-427);国家重点基础研究发展规划项目(2002CB412300)资助

摘　　要：通过大型底栖动物的量化监测,对香溪河水系大型底栖动物季节动态进行研究.共采集大型底栖动物197种,隶属6纲68科,其中,四节蜉、高翔蜉、短尾石蝇为该水系优势类群,不同季节间大型底栖动物优势类群组成存在较大差异.大型底栖动物群落结构以冬季最为复杂,春、秋季次之,夏季相对简单.大型底栖动物功能摄食类群以集食者占优,其次为刮食者、捕食者和滤食者,撕食者丰度最小.典型对应分析表明,不同季节影响底栖动物群落结构的因子差异较大;夏季和秋季营养盐对底栖动物群落结构影响较大,水深对各季度大型底栖动物群落结构均有影响.To study the seasonal dynamics of macrozoobenthos community in Xiangxi River, the individuals of macrozoobenthos in the River were quantitatively monitored. A total of 197 taxa belonging to 6 class and 68 families were collected, among which, Baetis spp., Epeorus spp., and Nemoura spp. were the dominant groups, and their compositions varied with seasons. The macrozoobenthos community was most complicated in winter, followed by in spring and autumn, and the simplest in summer. Gather-collector was the main component of functional feeding groups in Xiangxi River system, followed by scraper, predator, and filter-collector, while shredder only accounted for a small part. Canonical correspondence analysis showed that the factors affecting the macrozoobenthos community were dissimilar among seasons. In summer and autumn, nutrients had greater effects; and in all seasons, water depth had definite effects.

关 键 词：香溪河 大型底栖动物 季节动态 功能摄食类群 典型对应分析 

分 类 号：Q958.8[生物学—动物学]