Growth and food availability of silver and bighead carps: evidence from stable isotope and gut content analysis
文献类型:期刊论文
作者 | Zhou, Q ; Xie, P ; Xu, J ; Ke, ZX ; Guo, LG |
刊名 | AQUACULTURE RESEARCH
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出版日期 | 2009 |
卷号 | 40期号:14页码:1616-1625 |
关键词 | silver carp bighead carp stable isotope gut content growth food availability |
ISSN号 | 1355-557X |
通讯作者 | xieping@ihb.ac.cn |
中文摘要 | A 2-year investigation of growth and food availability of silver carp and bighead was carried out using stable isotope and gut content analysis in a large pen in Meiliang Bay of Lake Taihu, China. Both silver carp and bighead exhibited significantly higher delta 13C in 2005 than in 2004, which can probably be attributed to two factors: (i) the difference between isotopic compositions at the base of the pelagic food web and (ii) the difference between the compositions of prey items and stable isotopes. The significantly positive correlations between body length, body weight and stable isotope ratios indicated that isotopic changes in silver carp and bighead resulted from the accumulation of biomass concomitant with rapid growth. Because of the drastic decrease in zooplankton in the diet in 2005, silver carp and bighead grew faster in 2004 than in 2005. Bighead carp showed a lower trophic level than silver carp in 2005 as indicated by stable nitrogen isotope ratios, which was possibly explained by the interspecific difference between the prey species and the food quality of silver carp and bighead. |
学科主题 | Fisheries |
收录类别 | SCI |
原文出处 | WILEY-BLACKWELL PUBLISHING, INC |
WOS记录号 | WOS:000270124500006 |
公开日期 | 2011-07-03 |
源URL | [http://ir.scsio.ac.cn/handle/344004/6167] ![]() |
专题 | 南海海洋研究所_热带海洋环境国家重点实验室(LTO) |
推荐引用方式 GB/T 7714 | Zhou, Q,Xie, P,Xu, J,et al. Growth and food availability of silver and bighead carps: evidence from stable isotope and gut content analysis[J]. AQUACULTURE RESEARCH,2009,40(14):1616-1625. |
APA | Zhou, Q,Xie, P,Xu, J,Ke, ZX,&Guo, LG.(2009).Growth and food availability of silver and bighead carps: evidence from stable isotope and gut content analysis.AQUACULTURE RESEARCH,40(14),1616-1625. |
MLA | Zhou, Q,et al."Growth and food availability of silver and bighead carps: evidence from stable isotope and gut content analysis".AQUACULTURE RESEARCH 40.14(2009):1616-1625. |
入库方式: OAI收割
来源:南海海洋研究所
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