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SCI论文目录 |
Impacts of filter-feeding fishes on the long-term changes of
crustacean zooplankton in a eutrophic subtropical Chinese lake.
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| 出 版 社：Journal of Freshwater Ecology [J. Freshwater Ecol.]. |
| 发表时间：2001 |
| 台 站：
东湖湖泊生态系统试验站
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| 作 者：Lu, Min; Xie, Ping |
| 点 击 率：2320 |
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| 关 键 字：null |
| 摘 要：null |
| 关 键 字(英文)：null |
摘 要(英文)：Long-term changes in the crustacean zooplankton community
(calanoid and cyclopoid copepods and cladocerans) were studied in
Lake Donghu, a shallow and eutrophic Chinese lake. This lake had
been earlier stocked with two pump filter-feeding fishes, silver
carp (Hypophthalmichthys molitrix) and bighead carp (Aristichthys
nobilis). During the 1950s and the mid-1980s, the ratio of
copepods to cladocerans was relatively stable but showed a general
increase thereafter. From the early-1980s to the 1990s,
calanoid/cyclopoid ratios decreased obviously. In the 1990s,
Cyclops vicinus, Diaphanosoma brachyurum, and Moina micrura were
dominant; the abundance of C. vicinus and M. micrura increased
significantly; and D. brachyurum showed a substantial decrease.
The study shows that under extremely high pressure of fish
predation, the species which could recover rapidly from fish
predation would be the most likely to survive and increase their
numbers.
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