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Decreased trophic position as a function of increasing body size of a benthic omnivorous fish from the largest freshwater lake in China
Wang, Yuyu; Yu, Xiubo; Xu, Jun; Yu, XB (reprint author), Chinese Acad Sci, Key Lab Ecosyst Network Observat & Modeling, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China; yuxb@igsnrr.ac.cn
2011
Source PublicationENVIRONMENTAL BIOLOGY OF FISHES
ISSN0378-1909
Volume91Issue:4Pages:505-512
AbstractPotential body size-trophic position relationships of the Darkbarbel catfish Pelteobagrus vachelli (Richardson 1846) were examined using stable isotope analysis. Pelteobagrus vachelli is a benthic feeding fish from Lake Poyang, the largest freshwater lake in China. Two-source mixing model with mussel (Corbicula fluminea) and snail (Bellamya aeruginosa) as baseline primary consumers of planktonic and benthic food webs, respectively, was used to estimate contribution of carbon derived from planktonic vs. benthic food web. Results showed that as an indicator of trophic position, delta(15)N was negatively correlated with the body length and weight of the fish; on the other hand, as an indicator of the end-member food sources, delta(13)C was not correlated with fish size. The mixing model results showed that the averaged trophic position of our sampled 3.3-12.7 cm Pelteobagrus vachelli was 3.1 +/- 0.2 and derived 68 +/- 27% of their food from the benthic food web, confirming that the feeding behavior of the catfish favors benthic food sources.
KeywordStable Isotopes Feeding Ecology Mixing Model Lake Poyang Pelteobagrus Vachelli (Richardson 1846)
Department[Wang, YY; Yu, XB] Chinese Acad Sci, Key Lab Ecosyst Network Observat & Modeling, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China; [Wang, YY] Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China; [Xu, J] Chinese Acad Sci, Inst Hydrobiol, Donghu Expt Stn Lake Ecosyst, State Key Lab Freshwater Ecol & Biotechnol China, Wuhan 430072, Peoples R China
Subject AreaEnvironmental Sciences & Ecology ; Marine & Freshwater Biology
Funding Organization973 Plan[2009CB421106]; National Science and Technology Support Plan[2006BAC08B05]; National Natural Science Foundation of China[30870428]; K. C. Wong Education Foundation; Chinese Academy of Sciences ; 973 Plan[2009CB421106]; National Science and Technology Support Plan[2006BAC08B05]; National Natural Science Foundation of China[30870428]; K. C. Wong Education Foundation; Chinese Academy of Sciences ; 973 Plan[2009CB421106]; National Science and Technology Support Plan[2006BAC08B05]; National Natural Science Foundation of China[30870428]; K. C. Wong Education Foundation; Chinese Academy of Sciences ; 973 Plan[2009CB421106]; National Science and Technology Support Plan[2006BAC08B05]; National Natural Science Foundation of China[30870428]; K. C. Wong Education Foundation; Chinese Academy of Sciences
Indexed BySCI
Language英语
WOS IDWOS:000293297300012
Funding Organization973 Plan[2009CB421106]; National Science and Technology Support Plan[2006BAC08B05]; National Natural Science Foundation of China[30870428]; K. C. Wong Education Foundation; Chinese Academy of Sciences ; 973 Plan[2009CB421106]; National Science and Technology Support Plan[2006BAC08B05]; National Natural Science Foundation of China[30870428]; K. C. Wong Education Foundation; Chinese Academy of Sciences ; 973 Plan[2009CB421106]; National Science and Technology Support Plan[2006BAC08B05]; National Natural Science Foundation of China[30870428]; K. C. Wong Education Foundation; Chinese Academy of Sciences ; 973 Plan[2009CB421106]; National Science and Technology Support Plan[2006BAC08B05]; National Natural Science Foundation of China[30870428]; K. C. Wong Education Foundation; Chinese Academy of Sciences
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Cited Times:10[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/16283
Collection淡水生态学研究中心_期刊论文
Corresponding AuthorYu, XB (reprint author), Chinese Acad Sci, Key Lab Ecosyst Network Observat & Modeling, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China; yuxb@igsnrr.ac.cn
Recommended Citation
GB/T 7714
Wang, Yuyu,Yu, Xiubo,Xu, Jun,et al. Decreased trophic position as a function of increasing body size of a benthic omnivorous fish from the largest freshwater lake in China[J]. ENVIRONMENTAL BIOLOGY OF FISHES,2011,91(4):505-512.
APA Wang, Yuyu,Yu, Xiubo,Xu, Jun,Yu, XB ,&yuxb@igsnrr.ac.cn.(2011).Decreased trophic position as a function of increasing body size of a benthic omnivorous fish from the largest freshwater lake in China.ENVIRONMENTAL BIOLOGY OF FISHES,91(4),505-512.
MLA Wang, Yuyu,et al."Decreased trophic position as a function of increasing body size of a benthic omnivorous fish from the largest freshwater lake in China".ENVIRONMENTAL BIOLOGY OF FISHES 91.4(2011):505-512.
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