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学科主题: Ecology; Limnology
题名: Vertical distribution and migration of planktonic rotifers in Xiangxi Bay of the three Gorges Reservoir, China
作者: Zhou, Shuchan; Huang, Xiangfei; Cai, Qinghua
通讯作者: Cai, QH, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
关键词: PREDATOR-AVOIDANCE ; ZOOPLANKTON ; LAKE ; PHYTOPLANKTON ; PATTERNS ; COMPETITION ; DYNAMICS ; DAPHNIA ; ONTARIO ; IMPACT
刊名: JOURNAL OF FRESHWATER ECOLOGY
发表日期: 2007-09-01
卷: 22, 期:3, 页:441-449
收录类别: SCI
文章类型: Article
部门归属: Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China; Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China
WOS标题词: Science & Technology ; Life Sciences & Biomedicine
类目[WOS]: Ecology ; Limnology
研究领域[WOS]: Environmental Sciences & Ecology ; Marine & Freshwater Biology
摘要: We investigated diel vertical migrations (DVM) and distributions of rotifers in summer, 2004 and spring, 2005, in Xiangxi Bay of the Three Gorges Reservoir, China. Water temperature, pH, conductivity, and phytoplankton were closely related to rotifer vertical distribution, while dissolved oxygen had no relationship with the vertical distribution of rotifers. The species composition and population density of rotifers changed significantly between seasons. However, rotifer vertical distributions in both seasons were similar. They aggregated at specific depths in the water column. All the rotifer species inhabited the surface layers (0.5-5 m). Generally, the rotifers did not display DVM except for Polyarthra vulgaris (in summer), which performed reverse migration. The reason that rotifers did not perform DVM may be explained by the low abundance of competitors and predators and the high density of food resources at the surface strata.
英文摘要: We investigated diel vertical migrations (DVM) and distributions of rotifers in summer, 2004 and spring, 2005, in Xiangxi Bay of the Three Gorges Reservoir, China. Water temperature, pH, conductivity, and phytoplankton were closely related to rotifer vertical distribution, while dissolved oxygen had no relationship with the vertical distribution of rotifers. The species composition and population density of rotifers changed significantly between seasons. However, rotifer vertical distributions in both seasons were similar. They aggregated at specific depths in the water column. All the rotifer species inhabited the surface layers (0.5-5 m). Generally, the rotifers did not display DVM except for Polyarthra vulgaris (in summer), which performed reverse migration. The reason that rotifers did not perform DVM may be explained by the low abundance of competitors and predators and the high density of food resources at the surface strata.
关键词[WOS]: PREDATOR-AVOIDANCE ; ZOOPLANKTON ; LAKE ; PHYTOPLANKTON ; PATTERNS ; COMPETITION ; DYNAMICS ; DAPHNIA ; ONTARIO ; IMPACT
语种: 英语
WOS记录号: WOS:000248956800010
ISSN号: 0270-5060
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/152342/8452
Appears in Collections:中科院水生所知识产出(2009年前)_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China

Recommended Citation:
Zhou, Shuchan; Huang, Xiangfei; Cai, Qinghua.Vertical distribution and migration of planktonic rotifers in Xiangxi Bay of the three Gorges Reservoir, China,JOURNAL OF FRESHWATER ECOLOGY,2007,22(3):441-449
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