Sympatric variability of isotopic baselines influences modeling of fish trophic patterns

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	Sympatric variability of isotopic baselines influences modeling of fish trophic patterns
	Xu, Jun; Zhang, Min; Xie, Ping; Xu, J (reprint author), Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol China, Donghu Expt Stn Lake Ecosyst, Wuhan 430072, Peoples R China; xujun@ihb.ac.cn; pingxie@ihb.ac.cn
刊名	LIMNOLOGY
	2011
卷号	12 期号:2 页码:107-115
关键词	Mussel Snail Stable Isotope Baseline Trophic Modeling Trophic Interaction Shallow Lake Eutrophication
ISSN号	1439-8621
英文摘要	Stable isotope signatures of freshwater snails and mussels have been established as a convenient baseline measurement at the primary consumer level for food-web coupling studies. We measured delta(15)N and delta(13)C of primary consumers, including mussels (Anodonta woodiana, Cristaria plicata, and Unio douglasiae), snails (Bellamya aeruginosa and Hippeutis sp.), and zooplankton from the same habitat within a shallow eutrophic lake. Primary consumers showed positive relationship between delta(15)N and delta(13)C, indicating a linkage between planktonic and benthic habitats in this system. The variation in isotope ratios was higher in short-lived primary consumers (zooplankton) compared with the long-lived primary consumers (mussels and snails), suggesting limited availability of short-lived primary consumers as isotopic baselines in aquatic food-web assessment. Significant differences in isotope ratios were also found among three species of mussels, and when using these mussels separately as pelagic baselines to calculate trophic position and contribution of planktonic and benthic sources of fishes, bias and even misestimates were observed. This finding suggests that caution is needed when multiple primary consumers coexist in the same habitat, and it is important to assess potential effects of different baselines used.
学科主题	Marine & Freshwater Biology
语种	英语
WOS记录号	WOS:000292218300001
资助机构	National Natural Science Foundation of China[30870428]; K. C. Wong Education Foundation; Chinese Academy of Sciences; China's Ministry of Environmental Protection[2008ZX07101-001] ; National Natural Science Foundation of China[30870428]; K. C. Wong Education Foundation; Chinese Academy of Sciences; China's Ministry of Environmental Protection[2008ZX07101-001] ; National Natural Science Foundation of China[30870428]; K. C. Wong Education Foundation; Chinese Academy of Sciences; China's Ministry of Environmental Protection[2008ZX07101-001] ; National Natural Science Foundation of China[30870428]; K. C. Wong Education Foundation; Chinese Academy of Sciences; China's Ministry of Environmental Protection[2008ZX07101-001]
公开日期	2011-11-09
内容类型	期刊论文
源URL	[http://ir.ihb.ac.cn/handle/342005/16291]
专题	水生生物研究所_淡水生态学研究中心_期刊论文
通讯作者	Xu, J (reprint author), Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol China, Donghu Expt Stn Lake Ecosyst, Wuhan 430072, Peoples R China; xujun@ihb.ac.cn; pingxie@ihb.ac.cn
推荐引用方式 GB/T 7714	Xu, Jun,Zhang, Min,Xie, Ping,et al. Sympatric variability of isotopic baselines influences modeling of fish trophic patterns[J]. LIMNOLOGY,2011,12(2):107-115.
APA	Xu, Jun,Zhang, Min,Xie, Ping,Xu, J ,xujun@ihb.ac.cn,&pingxie@ihb.ac.cn.(2011).Sympatric variability of isotopic baselines influences modeling of fish trophic patterns.LIMNOLOGY,12(2),107-115.
MLA	Xu, Jun,et al."Sympatric variability of isotopic baselines influences modeling of fish trophic patterns".LIMNOLOGY 12.2(2011):107-115.