Decreased trophic position as a function of increasing body size of a benthic omnivorous fish from the largest freshwater lake in China
文献类型：期刊论文
| 作者 | Wang, Yuyu1,2; Yu, Xiubo1; Xu, Jun3 |
| 刊名 | ENVIRONMENTAL BIOLOGY OF FISHES
 |
| 出版日期 | 2011-08-01 |
| 卷号 | 91期号:4页码:505-512 |
| 关键词 | Stable isotopes Feeding ecology Mixing model Lake Poyang Pelteobagrus vachelli (Richardson 1846) |
| ISSN号 | 0378-1909 |
| 通讯作者 | 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 |
| 中文摘要 | Potential 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. |
| 英文摘要 | Potential 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 N-15 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 C-13 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. |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
| 学科主题 | Environmental Sciences & Ecology; Marine & Freshwater Biology |
| 类目[WOS] | Ecology ; Marine & Freshwater Biology |
| 研究领域[WOS] | Environmental Sciences & Ecology ; Marine & Freshwater Biology |
| 关键词[WOS] | PELAGIC FOOD WEBS ; STABLE-ISOTOPE ANALYSIS ; NITROGEN ; CARBON ; COMMUNITY ; MODELS ; RATIOS ; POYANG ; SHIFTS ; DIET |
| 收录类别 | SCI |
| 资助信息 | 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 |
| 语种 | 英语 |
| WOS记录号 | WOS:000293297300012 |
| 公开日期 | 2011-11-09 |
| 源URL | [http://ir.ihb.ac.cn/handle/342005/16283]  |
| 专题 | 水生生物研究所_淡水生态学研究中心_期刊论文 |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Ecosyst Network Observat & Modeling, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Hydrobiol, Donghu Expt Stn Lake Ecosyst, State Key Lab Freshwater Ecol & Biotechnol China, Wuhan 430072, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Yuyu,Yu, Xiubo,Xu, Jun. 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.(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. |
入库方式： OAI收割
来源：水生生物研究所
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