Growth and food availability of silver and bighead carps: evidence from stable isotope and gut content analysis
Zhou, Q; Xie, P; Xu, J; Ke, ZX; Guo, LG; xieping@ihb.ac.cn
2009
发表期刊AQUACULTURE RESEARCH
ISSN1355-557X
卷号40期号:14页码:1616-1625
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.
部门归属[Zhou, Qiong; Xie, Ping; Xu, Jun; Guo, Longgen] Wuhan Univ, Donghu Expt Stn Lake Ecosyst, State Key Lab Freshwater Ecol & Biotechnol China, Chinese Acad Sci,Inst Hydrobiol, Wuhan 430072, Peoples R China; [Zhou, Qiong] Chinese Acad Sci, Grad Sch, Beijing, Peoples R China; [Ke, Zhixin] Chinese Acad Sci, S China Sea Inst Oceanol, Guangzhou, Guangdong, Peoples R China
关键词Silver Carp Bighead Carp Stable Isotope Gut Content Growth Food Availability
学科领域Fisheries
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收录类别sci
资助项目LED
WOS记录号WOS:000270124500006
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被引频次:13[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.scsio.ac.cn/handle/344004/6167
专题热带海洋环境国家重点实验室(LTO)
通讯作者xieping@ihb.ac.cn
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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,&xieping@ihb.ac.cn.(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.
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