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Phytoplankton dynamics and their equilibrium phases in the Yanghe Reservoir, China
Hui, Tianxiang1,2; Xie, Ping1; Guo, Longgen1; Chu, Zhaosheng3; Liu, Minghua4; Xie, P (reprint author), Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Donghu Expt Stn Lake Ecosyst, Wuhan 430072, Peoples R China.
2014-01-02
Source PublicationJOURNAL OF FRESHWATER ECOLOGY
ISSN0270-5060
Volume29Issue:1Pages:1-15
AbstractPhytoplankton species composition, seasonal dynamics, and spatial distribution were studied during 2009 along with key physical and chemical variables in Yanghe Reservoir, a temperate eutrophic reservoir with a long water residence time of 284days. In the northern part of the reservoir, Microcystis wesenbergii dominated throughout the summer but no steady-state phases were found, as periods of equilibrium lasted for only two weeks each. In the southern part, the first steady-state phase occurred in spring, lasted for four weeks, and was dominated by Cryptomonas erosa. The second phase was dominated by M. wesenbergii in late summer and persisted for four weeks. The results suggest that steady-state phases establish more readily in deep areas with longer residence times and more dominant species compared to shallow areas. Thermal stratification in the deep area and fluctuation of nitrogen and phosphorus concentrations in the shallow area were considered to be responsible for such differences. Canonical correspondence analysis indicated that M. wesenbergii was more strongly related to NOx-N than to temperature in both areas of the reservoir. We conclude that in eutrophic lakes, a high concentration of nutrients such as NOx-N is more important than temperature in the establishment of a steady state.; Phytoplankton species composition, seasonal dynamics, and spatial distribution were studied during 2009 along with key physical and chemical variables in Yanghe Reservoir, a temperate eutrophic reservoir with a long water residence time of 284days. In the northern part of the reservoir, Microcystis wesenbergii dominated throughout the summer but no steady-state phases were found, as periods of equilibrium lasted for only two weeks each. In the southern part, the first steady-state phase occurred in spring, lasted for four weeks, and was dominated by Cryptomonas erosa. The second phase was dominated by M. wesenbergii in late summer and persisted for four weeks. The results suggest that steady-state phases establish more readily in deep areas with longer residence times and more dominant species compared to shallow areas. Thermal stratification in the deep area and fluctuation of nitrogen and phosphorus concentrations in the shallow area were considered to be responsible for such differences. Canonical correspondence analysis indicated that M. wesenbergii was more strongly related to NOx-N than to temperature in both areas of the reservoir. We conclude that in eutrophic lakes, a high concentration of nutrients such as NOx-N is more important than temperature in the establishment of a steady state.
SubtypeEditorial Material
KeywordEquilibrium Phase Steady State Phytoplankton Dynamics Thermal Stratification Eutrophic Lakes
Department[Hui, Tianxiang ; Xie, Ping ; Guo, Longgen] Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Donghu Expt Stn Lake Ecosyst, Wuhan 430072, Peoples R China ; [Hui, Tianxiang] Univ Chinese Acad Sci, Beijing 100049, Peoples R China ; [Chu, Zhaosheng] Chinese Res Inst Environm Sci, Beijing 100012, Peoples R China ; [Liu, Minghua] Qinhuangdao Environm Monitoring Stn, Qinhuangdao 066001, Peoples R China
DOI10.1080/02705060.2013.836726
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
Indexed BySCI
Language英语
WOS Research AreaEnvironmental Sciences & Ecology ; Marine & Freshwater Biology
WOS SubjectEcology ; Limnology
WOS IDWOS:000329776400001
WOS KeywordSTEADY-STATE ; THERMAL STRATIFICATION ; MICROCYSTIS-AERUGINOSA ; ALPINE LAKES ; LATE SUMMER ; ASSEMBLAGES ; DEEP ; COMMUNITIES ; COEXISTENCE ; SUCCESSION
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Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/20027
Collection淡水生态学研究中心_期刊论文
Corresponding AuthorXie, P (reprint author), Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Donghu Expt Stn Lake Ecosyst, Wuhan 430072, Peoples R China.
Affiliation1.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Donghu Expt Stn Lake Ecosyst, Wuhan 430072, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Chinese Res Inst Environm Sci, Beijing 100012, Peoples R China
4.Qinhuangdao Environm Monitoring Stn, Qinhuangdao 066001, Peoples R China
Recommended Citation
GB/T 7714
Hui, Tianxiang,Xie, Ping,Guo, Longgen,et al. Phytoplankton dynamics and their equilibrium phases in the Yanghe Reservoir, China[J]. JOURNAL OF FRESHWATER ECOLOGY,2014,29(1):1-15.
APA Hui, Tianxiang,Xie, Ping,Guo, Longgen,Chu, Zhaosheng,Liu, Minghua,&Xie, P .(2014).Phytoplankton dynamics and their equilibrium phases in the Yanghe Reservoir, China.JOURNAL OF FRESHWATER ECOLOGY,29(1),1-15.
MLA Hui, Tianxiang,et al."Phytoplankton dynamics and their equilibrium phases in the Yanghe Reservoir, China".JOURNAL OF FRESHWATER ECOLOGY 29.1(2014):1-15.
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