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引用本文:熊金林,梅兴国,胡传林.不同污染程度湖泊底栖动物群落结构及多样性比较.湖泊科学,2003,15(2):160-168. DOI:10.18307/2003.0210
XIONG Jinlin,MEI Xinguo,HU Chuanlin.Comparative Study on the Community Structure and Biodiversity of Zoobenthos in Lakes of Different Pollution States. J. Lake Sci.2003,15(2):160-168. DOI:10.18307/2003.0210
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不同污染程度湖泊底栖动物群落结构及多样性比较
熊金林1, 梅兴国1, 胡传林2
1.华中科技大学生命科学与技术学院, 武汉 430074;2.水利部、中国科学院水库渔业研究所, 武汉 430079
摘要:
首次对湖北梁子湖水系污染程度不同(中营养型、中富营养型、富营养型)的4个湖泊的底栖动物群落结构和物种多样性进行了周年研究,结果表明,底栖动物种类数、物种多样性与湖泊受污染程度呈负相关系,密度与污染程度大体上呈正相关.还讨论了底栖动物环境指示种生态特性,研究表明中国长足摇蚊的密度与水体营养水平呈正相关,软体动物种类数与湖泊污染程度呈负相关.通过对软体动物、寡毛类及摇蚊类密度和生物量在不同湖泊之间的差异的分析,表明湖泊水体污染导致了底栖动物多样性明显降低.
关键词:  底栖动物  污染程度  群落结构  物种多样性  多样性指数
DOI:10.18307/2003.0210
分类号:
基金项目:湖北省教育厅重点科研项目(2001C01)资助
Comparative Study on the Community Structure and Biodiversity of Zoobenthos in Lakes of Different Pollution States
XIONG Jinlin1, MEI Xinguo1, HU Chuanlin2
1.College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, P. R. China;2.Institute of Reservoir Fisheries, Chinese Ministry of Water Resources and Chinese Academy of Sciences, Wuhan 430079, P. R. China
Abstract:
Four lakes with different pollution state (mesotrophic, meso-eutrophic and eutrophic) were studied and compared over a period of one year for the community structure and biodiversity of zoobenthos. Considerable differences in zoobenthos species compositon, dominant species, abundance, biomass and diversity index were observed. The results showed the higher pollution state of lake, the smaller species number, biodiversity based on Margalef index and Shannon-Wiener index. Inversely, zoobenthos density increased with the aggravation of lake pollution on the whole. Ecological characteristics of environmental indicators were also discussed. The density of the oligochaete Tanypus chinensis was positively correlated with the state of lake pollution. A negative correlation was apparent between the number of species, density and the pollution level. These results indicated that a clear decrease in biodiversity should be attributed to water pollution.
Key words:  Zoobenthos  pollution state  community structure  species diversity  biodiversity index
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