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Phytoplankton biomass in relation to nutrients and zooplankton in thirty subtropical lakes adjacent to the Yangtze River, China
Wang, Songbo; Xie, Ping; Wu, Shikai; Liang, Xiaomin; Xie, P, Chinese Acad Sci, Inst Hydrobiol, Donghu Expt Stn, Wuhan 430072, Peoples R China
2007
Source PublicationFUNDAMENTAL AND APPLIED LIMNOLOGY
ISSN1863-9135
Volume169Issue:1Pages:49-55
AbstractA total of 30 shallow lakes, located along the middle and lower reaches of the Yangtze River, were studied to assess the relative importance of nutrients and zooplankton biomass in determining the phytoplankton biomass in subtropical China. Zooplankton biomass and nutrients both varied greatly in these lakes. Factor analysis and multiple linear regression showed that phytoplankton biomass was positively correlated with TN, NH4+, NO3- and TP, while it did not show any negative relationship to zooplankton biomass. Meanwhile, the phytoplankton biomass showed contrary relationships to the mass ratio of TN/TP in spring and summer, suggesting that in nutrient-richer lakes the dominant phytoplankton species have different preferences for TN/TP ratio. The insignificant top-down control of phytoplankton biomass may be attributed to the dominance of small-sized crustaceans and low crustacean biomass resulting from cyanobacterial dominance and planktivorous fish predation as well as other factors. Thus, it is likely that nutrients were more important than zooplankton biomass in explaining the total variance of phytoplaDkton biomass in these subtropical lakes.; A total of 30 shallow lakes, located along the middle and lower reaches of the Yangtze River, were studied to assess the relative importance of nutrients and zooplankton biomass in determining the phytoplankton biomass in subtropical China. Zooplankton biomass and nutrients both varied greatly in these lakes. Factor analysis and multiple linear regression showed that phytoplankton biomass was positively correlated with TN, NH4+, NO3- and TP, while it did not show any negative relationship to zooplankton biomass. Meanwhile, the phytoplankton biomass showed contrary relationships to the mass ratio of TN/TP in spring and summer, suggesting that in nutrient-richer lakes the dominant phytoplankton species have different preferences for TN/TP ratio. The insignificant top-down control of phytoplankton biomass may be attributed to the dominance of small-sized crustaceans and low crustacean biomass resulting from cyanobacterial dominance and planktivorous fish predation as well as other factors. Thus, it is likely that nutrients were more important than zooplankton biomass in explaining the total variance of phytoplaDkton biomass in these subtropical lakes.
SubtypeArticle
KeywordLake Water Quality Phosphorus Nitrogen Zooplankton Grazing Correlation
DepartmentChinese Acad Sci, Inst Hydrobiol, Donghu Expt Stn, Wuhan 430072, Peoples R China
Subject AreaLimnology ; Marine & Freshwater Biology
DOI10.1127/1863-9135/2007/0169-0049
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
Indexed BySCI
Language英语
WOS Research AreaMarine & Freshwater Biology
WOS SubjectLimnology ; Marine & Freshwater Biology
WOS IDWOS:000247325700004
WOS KeywordEUROPEAN MESOCOSM EXPERIMENT ; TROPHIC STATE RELATIONSHIPS ; CRUSTACEAN ZOOPLANKTON ; SHALLOW LAKES ; GRAZING PRESSURE ; FISH PREDATION ; FLORIDA LAKES ; DANISH LAKES ; DAPHNIA ; USA
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Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/152342/8546
Collection期刊论文
Corresponding AuthorXie, P, Chinese Acad Sci, Inst Hydrobiol, Donghu Expt Stn, Wuhan 430072, Peoples R China
AffiliationChinese Acad Sci, Inst Hydrobiol, Donghu Expt Stn, Wuhan 430072, Peoples R China
Recommended Citation
GB/T 7714
Wang, Songbo,Xie, Ping,Wu, Shikai,et al. Phytoplankton biomass in relation to nutrients and zooplankton in thirty subtropical lakes adjacent to the Yangtze River, China[J]. FUNDAMENTAL AND APPLIED LIMNOLOGY,2007,169(1):49-55.
APA Wang, Songbo,Xie, Ping,Wu, Shikai,Liang, Xiaomin,&Xie, P, Chinese Acad Sci, Inst Hydrobiol, Donghu Expt Stn, Wuhan 430072, Peoples R China.(2007).Phytoplankton biomass in relation to nutrients and zooplankton in thirty subtropical lakes adjacent to the Yangtze River, China.FUNDAMENTAL AND APPLIED LIMNOLOGY,169(1),49-55.
MLA Wang, Songbo,et al."Phytoplankton biomass in relation to nutrients and zooplankton in thirty subtropical lakes adjacent to the Yangtze River, China".FUNDAMENTAL AND APPLIED LIMNOLOGY 169.1(2007):49-55.
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