Long-term changes of planktonic rotifers in a subtropical Chinese lake dominated by filter-feeding fishes
文献类型：期刊论文
| 作者 | Shao, ZJ; Xie, P; Yan, ZG |
| 刊名 | FRESHWATER BIOLOGY
 |
| 出版日期 | 2001-07-01 |
| 卷号 | 46期号:7页码:973-986 |
| 关键词 | eutrophication fish predation Lake Donghu long-term changes rotifers |
| ISSN号 | 0046-5070 |
| 通讯作者 | Xie, P, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol China, Donghu Expt Stn Lake Ecosyst, Wuhan 430072, Peoples R China |
| 中文摘要 | 1. The long-term changes (1956-1998) in density and species composition of planktonic rotifers were studied at two sampling stations (I, II) of Lake Donghu, a shallow eutrophic Chinese Lake densely stocked with filter-feeding fishes. Annual average densities of rotifers increased with an increase in fish yield and eutrophication, whilst species number decreased from 82 in 1962-1963 to 62 in 1994-1998. 2. During 1962-98, some species such as Anuraeopsis fissa, Polyarthra spp. (including P. dolichoptera & P. vulgaris), Trichocerca pusilla and Synchaeta oblonga increased their percentage in abundance remarkably, whilst the proportion of Keratella cochlearis decreased at two relatively eutrophic stations from 19 to 4.2% at Station I and from 30 to 3.2% at Station IL 3. The high r(max) of A. fissa probably made it more successful than other rotifers under high predation pressure by planktivorous fish. The decrease in the K. cochlearis population might be attributed partly to predation by Cyclops vicinus. 4. Small rotifers were less vulnerable to fish predation than large-sized cladocerans. Decreases in cladocerans coincided with increases in rotifers, suggesting that the indirect effect of fish predation on cladocerans might have partly contributed to the population development of rotifers in Lake Donghu during recent decades. 5. We also conducted surveys (1994-1998) of seasonal dynamics of rotifers at four sampling stations (I-IV) which have varied in trophic status after fragmentation of the lake in the 1960s. A total of 75 species were identified at the four stations. Both densities and biomass of rotifers were considerably higher in the two more eutrophic stations than in the two less eutrophic stations. This indicates that the population increase of rotifers at Stations I and II during recent decades might be partly attributed to eutrophication of the lake water. |
| 英文摘要 | 1. The long-term changes (1956-1998) in density and species composition of planktonic rotifers were studied at two sampling stations (I, II) of Lake Donghu, a shallow eutrophic Chinese Lake densely stocked with filter-feeding fishes. Annual average densities of rotifers increased with an increase in fish yield and eutrophication, whilst species number decreased from 82 in 1962-1963 to 62 in 1994-1998. |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
| 学科主题 | Marine & Freshwater Biology |
| 类目[WOS] | Marine & Freshwater Biology |
| 研究领域[WOS] | Marine & Freshwater Biology |
| 关键词[WOS] | KERATELLA-COCHLEARIS ; PLANKTIVOROUS FISHES ; POPULATION-DYNAMICS ; FOOD CONCENTRATION ; IMPACT ; INTERFERENCE ; ZOOPLANKTON ; COMMUNITY ; EUTROPHICATION ; CLADOCERANS |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000170293900010 |
| 公开日期 | 2010-10-13 |
| 源URL | [http://ir.ihb.ac.cn/handle/152342/9958]  |
| 专题 | 水生生物研究所_中科院水生所知识产出（2009年前）_期刊论文 |
| 作者单位 | Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol China, Donghu Expt Stn Lake Ecosyst, Wuhan 430072, Peoples R China |
| 推荐引用方式 GB/T 7714 | Shao, ZJ,Xie, P,Yan, ZG. Long-term changes of planktonic rotifers in a subtropical Chinese lake dominated by filter-feeding fishes[J]. FRESHWATER BIOLOGY,2001,46(7):973-986. |
| APA | Shao, ZJ,Xie, P,&Yan, ZG.(2001).Long-term changes of planktonic rotifers in a subtropical Chinese lake dominated by filter-feeding fishes.FRESHWATER BIOLOGY,46(7),973-986. |
| MLA | Shao, ZJ,et al."Long-term changes of planktonic rotifers in a subtropical Chinese lake dominated by filter-feeding fishes".FRESHWATER BIOLOGY 46.7(2001):973-986. |
入库方式： OAI收割
来源：水生生物研究所
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