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Studies on the food web structure of Lake Donghu using stable carbon and nitrogen isotope ratios
Jun Xu; Ping Xie; Xie, P, Chinese Acad Sci, Grad Sch,Inst Hydrobiol, Donghu Expt Stn Lake Ecosyst, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
2004
Source PublicationJOURNAL OF FRESHWATER ECOLOGY
Volume19Issue:4Pages:645-650
AbstractFood web structure was studied by using carbon and nitrogen isotope ratios in a hypereutrophic subtropical Chinese lake, Lake Donghu. High external nutrient loading and the presence of abundant detritus from submersed macrophytes were responsible for the high sediment delta(15)N and delta(13)C, respectively. C-13 was significantly higher in submersed macrophytes than in other macrophytes. The similar delta(13)C values in phytoplankton, zooplankton, zoobenthos, and planktivorous fish indicate that phytoplankton was the major food source for the consumers. By using a delta(15)N mass balance model, we estimate that the contributions of zooplankton to the diet of silver carp and bighead carp were 54% and 74%, respectively, which is in agreement with previous microscopic observations on intestinal contents of these fishes.
KeywordTrophic Structure Diet Macrophytes Indicators Dynamics Animals Marine
DepartmentChinese Acad Sci, Grad Sch,Inst Hydrobiol, Donghu Expt Stn Lake Ecosyst, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
Subject AreaEcology ; Limnology
Indexed BySCI
WOS IDWOS:000225656300016
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Cited Times:33[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/152342/9364
Collection期刊论文
Corresponding AuthorXie, P, Chinese Acad Sci, Grad Sch,Inst Hydrobiol, Donghu Expt Stn Lake Ecosyst, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
Recommended Citation
GB/T 7714
Jun Xu,Ping Xie,Xie, P, Chinese Acad Sci, Grad Sch,Inst Hydrobiol, Donghu Expt Stn Lake Ecosyst, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China. Studies on the food web structure of Lake Donghu using stable carbon and nitrogen isotope ratios[J]. JOURNAL OF FRESHWATER ECOLOGY,2004,19(4):645-650.
APA Jun Xu,Ping Xie,&Xie, P, Chinese Acad Sci, Grad Sch,Inst Hydrobiol, Donghu Expt Stn Lake Ecosyst, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China.(2004).Studies on the food web structure of Lake Donghu using stable carbon and nitrogen isotope ratios.JOURNAL OF FRESHWATER ECOLOGY,19(4),645-650.
MLA Jun Xu,et al."Studies on the food web structure of Lake Donghu using stable carbon and nitrogen isotope ratios".JOURNAL OF FRESHWATER ECOLOGY 19.4(2004):645-650.
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