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题名: Diet and feeding ecology of invasive icefish Neosalanx taihuensis in Erhai Lake, a Chinese plateau mesoeutrophicated lake
作者: Hu Cuilin1, 2; Guo Longgen2; Wang Shengrui3
通讯作者: Guo, LG (reprint author), Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol China, Donghu Expt Stn Lake Ecosyst, Wuhan 430072, Peoples R China.
关键词: dietary composition ; crustacean zooplankton ; feeding ecology ; invasive species ; Neosalanx taihuensis
刊名: CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY
发表日期: 2015-03-01
DOI: 10.1007/s00343-015-4113-y
卷: 33, 期:2, 页:372-380
收录类别: SCI
文章类型: Article
部门归属: [Hu Cuilin] Huazhong Agr Univ, Coll Fisheries, Wuhan 430072, Peoples R China ; [Hu Cuilin ; Guo Longgen] Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol China, Donghu Expt Stn Lake Ecosyst, Wuhan 430072, Peoples R China ; [Wang Shengrui] Chinese Res Inst Environm Sci, Res Ctr Lake Environm, Beijing 100012, Peoples R China
WOS标题词: Science & Technology ; Life Sciences & Biomedicine ; Physical Sciences
类目[WOS]: Limnology ; Oceanography
研究领域[WOS]: Marine & Freshwater Biology ; Oceanography
英文摘要: A comprehensive study of the invasive icefish Neosalanx taihuensis feeding ecology in Erhai Lake was conducted from November 2009 to October 2010. Prey items in the guts of the icefish sampled varied significantly according to season. This finding suggests a relationship between fluctuations in available prey in the environment and selective feeding by icefish. N. taihuensis preferred large-sized zooplankton, such as Daphnia and calanoids. Additionally, the gut fullness values differed significantly (P < 0.001) among sampling times. To compare the values at different times, samples were taken over a 24 h period every 2 months for the entire year. The feeding activities of the fish were concentrated either in the morning (8:00) and/or at dusk (20:00), except in September 2010. This finding can be explained primarily by the variation in optimum light intensity. Daily N. taihuensis zooplankton consumption varied significantly, both diurnally and among seasons. The daily consumption values ranged from 0.089 to 0.237 g (wet weight) per 100 g wet fish weight in temperatures between 11.50A degrees C and 24.68A degrees C. This is the first report of diel feeding periodicity and daily food consumption of icefish in their invaded ecosystems.
关键词[WOS]: FOOD-CONSUMPTION ; DAILY RATION ; FISH ; OSTEICHTHYES ; ZOOPLANKTON ; PREFERENCE ; TURBIDITY ; LIGHT ; PREY ; SEA
语种: 英语
WOS记录号: WOS:000351156800010
ISSN号: 0254-4059
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/23866
Appears in Collections:淡水生态学研究中心_期刊论文

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作者单位: 1.Huazhong Agr Univ, Coll Fisheries, Wuhan 430072, Peoples R China
2.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol China, Donghu Expt Stn Lake Ecosyst, Wuhan 430072, Peoples R China
3.Chinese Res Inst Environm Sci, Res Ctr Lake Environm, Beijing 100012, Peoples R China
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文件名: Diet and feeding ecology of invasive icefish Neosalanx taihuensis in Erhai Lake, a Chinese plateau mesoeutrophicated lake.pdf
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