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Temporal Coherence of Chlorophyll a during a Spring Phytoplankton Bloom in Xiangxi Bay of Three-Gorges Reservoir, China
Xu, Yao-Yang1,2; Wang, Lan1,2; Cai, Qing-Hua1; Ye, Lin1; Cai, QH, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
2009
Source PublicationINTERNATIONAL REVIEW OF HYDROBIOLOGY
ISSN1434-2944
Volume94Issue:6Pages:656-672
AbstractAlgal bloom phenomenon was defined as "the rapid growth of one or more phytoplankton species which leads to a rapid increase in the biomass of phytoplankton", yet most estimates of temporal coherence are based on yearly or monthly sampling frequencies and little is known of how synchrony varies among phytoplankton or of the causes of temporal coherence during spring algal bloom. In this study, data of chlorophyll a and related environmental parameters were weekly gathered at 15 sampling sites in Xiangxi Bay of Three-Gorges Reservoir (TGR, China) to evaluate patterns of temporal coherence for phytoplankton during spring bloom and test if spatial heterogeneity of nutrient and inorganic suspended particles within a single ecosystem influences synchrony of spring phytoplankton dynamics. There is a clear spatial and temporal variation in chlorophyll a across Xiangxi Bay. The degree of temporal coherence for chlorophyll a between pairs of sites located in Xiangxi Bay ranged from -0.367 to 0.952 with mean and median values of 0.349 and 0.321, respectively. Low levels of temporal coherence were often detected among the three stretches of the bay (Down reach, middle reach and upper reach), while high levels of temporal coherence were often found within the same reach of the bay. The relative difference of DIN between pair sites was the strong predictor of temporal coherence for chlorophyll a in down and middle reach of the bay, while the relative difference in Anorganic Suspended Solids was the important factor regulating temporal coherence in middle and upper reach. Contrary to many studies, these results illustrate that, in a small geographic area (a single reservoir bay of approximately 25 km), spatial heterogeneity influence synchrony of phytoplankton dynamics during spring bloom and local processes may override the effects of regional processes or dispersal.; Algal bloom phenomenon was defined as "the rapid growth of one or more phytoplankton species which leads to a rapid increase in the biomass of phytoplankton", yet most estimates of temporal coherence are based on yearly or monthly sampling frequencies and little is known of how synchrony varies among phytoplankton or of the causes of temporal coherence during spring algal bloom. In this study, data of chlorophyll a and related environmental parameters were weekly gathered at 15 sampling sites in Xiangxi Bay of Three-Gorges Reservoir (TGR, China) to evaluate patterns of temporal coherence for phytoplankton during spring bloom and test if spatial heterogeneity of nutrient and inorganic suspended particles within a single ecosystem influences synchrony of spring phytoplankton dynamics. There is a clear spatial and temporal variation in chlorophyll a across Xiangxi Bay. The degree of temporal coherence for chlorophyll a between pairs of sites located in Xiangxi Bay ranged from -0.367 to 0.952 with mean and median values of 0.349 and 0.321, respectively. Low levels of temporal coherence were often detected among the three stretches of the bay (Down reach, middle reach and upper reach), while high levels of temporal coherence were often found within the same reach of the bay. The relative difference of DIN between pair sites was the strong predictor of temporal coherence for chlorophyll a in down and middle reach of the bay, while the relative difference in Anorganic Suspended Solids was the important factor regulating temporal coherence in middle and upper reach. Contrary to many studies, these results illustrate that, in a small geographic area (a single reservoir bay of approximately 25 km), spatial heterogeneity influence synchrony of phytoplankton dynamics during spring bloom and local processes may override the effects of regional processes or dispersal.
SubtypeArticle
KeywordPopulation Synchrony Lakes Eutrophication Phosphorus Temperature Management Wisconsin Chemistry Abundance Features
Department[Xu, Yao-Yang; Wang, Lan; Cai, Qing-Hua; Ye, Lin] Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China; [Xu, Yao-Yang; Wang, Lan] Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
Subject AreaMarine & Freshwater Biology
DOI10.1002/iroh.200911176
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
Funding OrganizationNational Natural Science Foundation of China [40671197]; Key Project of Knowledge Innovation Program of CAS [KZCX2-YW-427] ; National Natural Science Foundation of China [40671197]; Key Project of Knowledge Innovation Program of CAS [KZCX2-YW-427] ; National Natural Science Foundation of China [40671197]; Key Project of Knowledge Innovation Program of CAS [KZCX2-YW-427] ; National Natural Science Foundation of China [40671197]; Key Project of Knowledge Innovation Program of CAS [KZCX2-YW-427]
Indexed BySCI
Language英语
WOS Research AreaMarine & Freshwater Biology
WOS SubjectMarine & Freshwater Biology
WOS IDWOS:000273415100003
WOS KeywordPOPULATION SYNCHRONY ; LAKES ; EUTROPHICATION ; PHOSPHORUS ; TEMPERATURE ; MANAGEMENT ; WISCONSIN ; CHEMISTRY ; ABUNDANCE ; FEATURES
Funding OrganizationNational Natural Science Foundation of China [40671197]; Key Project of Knowledge Innovation Program of CAS [KZCX2-YW-427] ; National Natural Science Foundation of China [40671197]; Key Project of Knowledge Innovation Program of CAS [KZCX2-YW-427] ; National Natural Science Foundation of China [40671197]; Key Project of Knowledge Innovation Program of CAS [KZCX2-YW-427] ; National Natural Science Foundation of China [40671197]; Key Project of Knowledge Innovation Program of CAS [KZCX2-YW-427]
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Cited Times:14[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/152342/7442
Collection期刊论文
Corresponding AuthorCai, QH, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
Affiliation1.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Xu, Yao-Yang,Wang, Lan,Cai, Qing-Hua,et al. Temporal Coherence of Chlorophyll a during a Spring Phytoplankton Bloom in Xiangxi Bay of Three-Gorges Reservoir, China[J]. INTERNATIONAL REVIEW OF HYDROBIOLOGY,2009,94(6):656-672.
APA Xu, Yao-Yang,Wang, Lan,Cai, Qing-Hua,Ye, Lin,&Cai, QH, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China.(2009).Temporal Coherence of Chlorophyll a during a Spring Phytoplankton Bloom in Xiangxi Bay of Three-Gorges Reservoir, China.INTERNATIONAL REVIEW OF HYDROBIOLOGY,94(6),656-672.
MLA Xu, Yao-Yang,et al."Temporal Coherence of Chlorophyll a during a Spring Phytoplankton Bloom in Xiangxi Bay of Three-Gorges Reservoir, China".INTERNATIONAL REVIEW OF HYDROBIOLOGY 94.6(2009):656-672.
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