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Seasonal Trophic Shift of Littoral Consumers in Eutrophic Lake Taihu (China) Revealed by a Two-Source Mixing Model
Zhou, Qiong; Xie, Ping; Xu, Jun; Liang, Xufang; Qin, Jianhui; Cao, Te; Chen, Feizhou; Xie, P (reprint author), Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol China, Donghu Expt Stn Lake Ecosyst, Wuhan, Peoples R China; xieping@ihb.ac.cn; xujun@ihb.ac.cn
2011
Source PublicationTHESCIENTIFICWORLDJOURNAL
ISSN1537-744X
Volume11Issue:0Pages:1442-1454
AbstractWe evaluated the seasonal variation in the contributions of planktonic and benthic resources to 11 littoral predators in eutrophic Lake Taihu (China) from 2004 to 2005. Seasonal fluctuations in consumer delta(13)C and delta(15)N were attributed to the combined impacts of temporal variation in isotopic signatures of basal resources and the diet shift of fishes. Based on a two-end-member mixing model, all target consumers relied on energy sources from coupled benthic and planktonic pathways, but the predominant energy source for most species was highly variable across seasons, showing seasonal trophic shift of littoral consumers. Seasonality in energy mobilization of consumers focused on two aspects: (1) the species number of consumers that relied mainly on planktonic carbon showed the lowest values in the fall and the highest during spring/summer, and (2) most consumer species showed seasonal variation in the percentages of planktonic reliance. We concluded that seasonal trophic shifts of fishes and invertebrates were driven by phytoplankton production, but benthic resources were also important seasonally in supporting littoral consumers in Meiliang Bay. Energy mobilization of carnivorous fishes was more subject to the impact of resource availability than omnivorous species.
KeywordStable Isotope Mixing Model Trophic Shift Benthic And Planktonic Energy Sources Lake Taihu
Department[Zhou, Qiong; Xie, Ping; Xu, Jun; Cao, Te] Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol China, Donghu Expt Stn Lake Ecosyst, Wuhan, Peoples R China; [Zhou, Qiong; Xie, Ping; Liang, Xufang; Qin, Jianhui] Huazhong Agr Univ, Coll Fisheries, Wuhan, Peoples R China; [Chen, Feizhou] Chinese Acad Sci, Nanjing Inst Geog & Limnol, State Key Lab Lake Sci & Environm, Nanjing, Peoples R China
Subject AreaEnvironmental Sciences & Ecology ; Science & Technology - Other Topics
Funding OrganizationNational Basic Research Program of China[2008CB418001-1]; National Natural Science Foundation of China[30870428]; State Key Laboratory of Freshwater Ecology and Biotechnology of China[2011FB09] ; National Basic Research Program of China[2008CB418001-1]; National Natural Science Foundation of China[30870428]; State Key Laboratory of Freshwater Ecology and Biotechnology of China[2011FB09] ; National Basic Research Program of China[2008CB418001-1]; National Natural Science Foundation of China[30870428]; State Key Laboratory of Freshwater Ecology and Biotechnology of China[2011FB09] ; National Basic Research Program of China[2008CB418001-1]; National Natural Science Foundation of China[30870428]; State Key Laboratory of Freshwater Ecology and Biotechnology of China[2011FB09]
Indexed BySCI
Language英语
WOS IDWOS:000293344400002
Funding OrganizationNational Basic Research Program of China[2008CB418001-1]; National Natural Science Foundation of China[30870428]; State Key Laboratory of Freshwater Ecology and Biotechnology of China[2011FB09] ; National Basic Research Program of China[2008CB418001-1]; National Natural Science Foundation of China[30870428]; State Key Laboratory of Freshwater Ecology and Biotechnology of China[2011FB09] ; National Basic Research Program of China[2008CB418001-1]; National Natural Science Foundation of China[30870428]; State Key Laboratory of Freshwater Ecology and Biotechnology of China[2011FB09] ; National Basic Research Program of China[2008CB418001-1]; National Natural Science Foundation of China[30870428]; State Key Laboratory of Freshwater Ecology and Biotechnology of China[2011FB09]
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Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/16429
Collection淡水生态学研究中心_期刊论文
Corresponding AuthorXie, P (reprint author), Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol China, Donghu Expt Stn Lake Ecosyst, Wuhan, Peoples R China; xieping@ihb.ac.cn; xujun@ihb.ac.cn
Recommended Citation
GB/T 7714
Zhou, Qiong,Xie, Ping,Xu, Jun,et al. Seasonal Trophic Shift of Littoral Consumers in Eutrophic Lake Taihu (China) Revealed by a Two-Source Mixing Model[J]. THESCIENTIFICWORLDJOURNAL,2011,11(0):1442-1454.
APA Zhou, Qiong.,Xie, Ping.,Xu, Jun.,Liang, Xufang.,Qin, Jianhui.,...&xujun@ihb.ac.cn.(2011).Seasonal Trophic Shift of Littoral Consumers in Eutrophic Lake Taihu (China) Revealed by a Two-Source Mixing Model.THESCIENTIFICWORLDJOURNAL,11(0),1442-1454.
MLA Zhou, Qiong,et al."Seasonal Trophic Shift of Littoral Consumers in Eutrophic Lake Taihu (China) Revealed by a Two-Source Mixing Model".THESCIENTIFICWORLDJOURNAL 11.0(2011):1442-1454.
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