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SCI论文目录 |
Impact of eutrophication on biodiversity of the macrozoobenthos
community in a Chinese shallow lake.
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| 出 版 社：Journal of Freshwater Ecology [Journal of Freshwater Ecology]. |
| 发表时间：2001 |
| 台 站：
东湖湖泊生态系统试验站
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| 作 者：Gong, Zhijun; Xie, Ping |
| 点 击 率：2485 |
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| 关 键 字：null |
| 摘 要：null |
| 关 键 字(英文)：null |
摘 要(英文)： Comparative studies on community structure and biodiversity of
macrozoobenthos were carried out in three lake areas with
different states of eutrophication (mesotrophic, eutrophic and
hypereutrophic) in a shallow subtropic lake (Lake Donghu) in the
middle basin of the Yangtze River of China. Thirty-three taxa
(including six Mollusca, five Oligochaeta, 15 Chironomidae and
seven other zoobenthos) were found during February 1998 to April
1999. The results show that the more eutrophic the lake water, the
lower the macrozoobenthos species diversity (measured as species
number, diversity index, and K-dominant curves). Abundance of the
oligochaete Limnodrilus hoffmeisteri was positively correlated
with the degree of eutrophication, which was due mainly to its
ability to tolerate low dissolved oxygen. The chironomid Tanypus
chinensis also thrived in the hypereutrophic environment; however,
it was less resistant to eutrophication than L. hoffmeisteri
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