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学科主题: Fisheries
题名: Growth and food availability of silver and bighead carps: evidence from stable isotope and gut content analysis
作者: Zhou, Qiong1, 2; Xie, Ping1; Xu, Jun1; Ke, Zhixin3; Guo, Longgen1
通讯作者: Xie, P, Wuhan Univ, Donghu Expt Stn Lake Ecosyst, State Key Lab Freshwater Ecol & Biotechnol China, Chinese Acad Sci,Inst Hydrobiol, Wuhan 430072, Peoples R China
关键词: silver carp ; bighead carp ; stable isotope ; gut content ; growth ; food availability
刊名: AQUACULTURE RESEARCH
发表日期: 2009-09-30
DOI: 10.1111/j.1365-2109.2009.02262.x
卷: 40, 期:14, 页:1616-1625
收录类别: SCI
文章类型: Article
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
WOS标题词: Science & Technology ; Life Sciences & Biomedicine
资助者: Ministry of Science and Technology of the People's Republic of China [2007BAC26B02]
类目[WOS]: Fisheries
研究领域[WOS]: Fisheries
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.
英文摘要: 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.
关键词[WOS]: HYPOPHTHALMICHTHYS-MOLITRIX VAL ; ARISTICHTHYS-NOBILIS RICH ; SHRIMP PENAEUS-AZTECUS ; PROTEIN-TURNOVER ; TROPHIC POSITION ; ORGANIC-MATTER ; WEB STRUCTURE ; GEORGES BANK ; CARBON ; NITROGEN
语种: 英语
WOS记录号: WOS:000270124500006
ISSN号: 1355-557X
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/152342/7580
Appears in Collections:中科院水生所知识产出(2009年前)_期刊论文

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作者单位: 1.Wuhan Univ, Donghu Expt Stn Lake Ecosyst, State Key Lab Freshwater Ecol & Biotechnol China, Chinese Acad Sci,Inst Hydrobiol, Wuhan 430072, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing, Peoples R China
3.Chinese Acad Sci, S China Sea Inst Oceanol, Guangzhou, Guangdong, Peoples R China

Recommended Citation:
Zhou, Qiong; Xie, Ping; Xu, Jun; Ke, Zhixin; Guo, Longgen.Growth and food availability of silver and bighead carps: evidence from stable isotope and gut content analysis,AQUACULTURE RESEARCH,2009,40(14):1616-1625
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