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香溪河大型底栖动物群落结构季节动态

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   

  1. 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
  • 收稿日期:2008-09-16 修回日期:1900-01-01 出版日期:2009-04-20 发布日期:2009-04-20

Seasonal dynamics of macrozoobenthos community structure in Xiangxi River.

JIANG Wan-xiang1,2;JIA Xing-huan1,3;ZHOU Shu-chan1;LI Feng-qing1;TANG Tao1;CAI Qing-hua1   

  1. 1State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China;2Department of Life Sciences, Zaozhuang University, Zaozhuang 277160, Shandong, China;3State Forestry Administration Wetland Ecosystem Research Station of Hangzhou Bay, Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Fuyang 311400, Zhejiang, China
  • Received:2008-09-16 Revised:1900-01-01 Online:2009-04-20 Published:2009-04-20

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.

关键词: 文蛤, 生物标志物, 综合生物标志物响应指数, 环境压力

Abstract: To study the seasonal dynamics of macrozoobenthos community in Xiangxi River, the individuals of macrozoobenthos in the River were quantitatively moni tored. 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 do minant group s, 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 analysi s showed that the factors affecting the macrozoobenthos community were dissimila r among seasons. In summer and autumn, nutrients had greater effects; and in all seasons, water depth had definite effects.

Key words: Meretrix meretrix, biomarker, integrated biomarker response index, environmental stress.