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学科主题: Ecology; Marine & Freshwater Biology
题名: Distribution, feeding and body condition of four small fish species in the near-shore and central areas of Liangzi Lake, China
作者: Xie, SG; Li, ZJ; Cui, YB; Murphy, BR
通讯作者: Xie, SG, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Hubei, Peoples R China
关键词: gut fullness ; growth ; vegetation abundance ; Yangtze lakes
刊名: ENVIRONMENTAL BIOLOGY OF FISHES
发表日期: 2005-11-01
DOI: 10.1007/s10641-005-2925-x
卷: 74, 期:3-4, 页:379-387
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, Hubei, Peoples R China; Virginia Tech, Dept Fisheries & Wildlife Sci, Blacksburg, VA USA
WOS标题词: Science & Technology ; Life Sciences & Biomedicine
类目[WOS]: Ecology ; Marine & Freshwater Biology
研究领域[WOS]: Environmental Sciences & Ecology ; Marine & Freshwater Biology
摘要: Small fish abundance is usually high in heavily vegetated habitats in Yangtze lakes, China. Visual and swimming barriers created by dense macrophytes beds could reduce feeding efficiency and growth of small fishes. We tested the hypothesis that small fishes in habitats with dense macrophytes would show decreased feeding efficiency and reduced growth rates by comparing feeding efficiency (measured as the relative weight of fore-gut contents), total length, and condition factor of four small young-of-the-year fishes collected in the near-shore (heavily vegetated) and central (less vegetated) areas of Liangzi Lake. Feeding efficiency, total length, or condition factor were each significantly reduced in the near-shore area compared with the central area for Ctenogobius giurinus, Pseudorasbora parva and Carassius auratus auratus. This supports our hypothesis that vegetation abundance may mediate feeding efficiency and growth of small fishes. Although Hypseleotris swinhonis did not show significant decreases in feeding efficiency or growth in the near-shore area, there was not any reversed tendency, i.e. increased feeding rate or growth in the near-shore area compared to the central area.
英文摘要: Small fish abundance is usually high in heavily vegetated habitats in Yangtze lakes, China. Visual and swimming barriers created by dense macrophytes beds could reduce feeding efficiency and growth of small fishes. We tested the hypothesis that small fishes in habitats with dense macrophytes would show decreased feeding efficiency and reduced growth rates by comparing feeding efficiency (measured as the relative weight of fore-gut contents), total length, and condition factor of four small young-of-the-year fishes collected in the near-shore (heavily vegetated) and central (less vegetated) areas of Liangzi Lake. Feeding efficiency, total length, or condition factor were each significantly reduced in the near-shore area compared with the central area for Ctenogobius giurinus, Pseudorasbora parva and Carassius auratus auratus. This supports our hypothesis that vegetation abundance may mediate feeding efficiency and growth of small fishes. Although Hypseleotris swinhonis did not show significant decreases in feeding efficiency or growth in the near-shore area, there was not any reversed tendency, i.e. increased feeding rate or growth in the near-shore area compared to the central area.
关键词[WOS]: AMONG-POPULATION VARIABILITY ; LARGEMOUTH BASS ; COMMUNITY STRUCTURE ; BIANDANTANG LAKE ; LITTORAL FISHES ; NORTH TEMPERATE ; HABITAT USE ; GROWTH ; PREY ; BLUEGILLS
语种: 英语
WOS记录号: WOS:000233732200013
ISSN号: 0378-1909
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/152342/9090
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, Hubei, Peoples R China
2.Virginia Tech, Dept Fisheries & Wildlife Sci, Blacksburg, VA USA

Recommended Citation:
Xie, SG; Li, ZJ; Cui, YB; Murphy, BR.Distribution, feeding and body condition of four small fish species in the near-shore and central areas of Liangzi Lake, China,ENVIRONMENTAL BIOLOGY OF FISHES,2005,74(3-4):379-387
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