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Phytoplankton development and ecological status during a cyanobacterial bloom in a tributary bay of the Three Gorges Reservoir, China
Wang, Lan; Cai, Qinghua; Tan, Lu; Kong, Linghui; Cai, QH (reprint author), Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Wuhan 430072, Peoples R China; qhcai@ihb.ac.cn
2011
Source PublicationSCIENCE OF THE TOTAL ENVIRONMENT
ISSN0048-9697
Volume409Issue:19Pages:3820-3828
AbstractReservoirs can provide suitable conditions for cyanobacterial bloom development, which may impact on water quality and biological communities. Weekly surveys in a cyanobacterial bloom process were carried out in the mainstream and Xiangxi Bay of the Three Gorges Reservoir (China), from June 6 to July 18 in 2008. By application of the phytoplankton functional group approach, the spatiotemporal pattern, impact factors, and the ecological status based on Q index (assemblage index) were analyzed. The depth of euphotic layer was apparently the key factor driving the phytoplankton functional group variations. Longitudinal patterns of phytoplankton distribution were detected during this bloom: in the beginning phase, groups D (mainly Stephanodiscus hantzschii) and B (Cyclotella stelligera) dominated in the mainstream of the Three Gorges Reservoir and the mouth area of Xiangxi Bay, group Y (Cryptomonas species) dominated in the upper area, while groups J (mainly Pediastrum duplex), F (mainly Sphaerocystis schroeteri) and G (Pandorina morum and Eudorina elegans) were important in other areas; in the mid phase, group M became absolutely dominant in the whole region; and in the ending phase, besides groups M and Y, groups X2 (Chroomonas acuta, Pyramimonas nanella, etc.) and Lo (Ceratium hirundinella) became more important in the lower and upper area respectively. Generally the ecological status was bad, temporally varied with the bloom process. No spatial difference of ecological status was found in the mainstream, while longitudinal patterns in Xiangxi Bay were detected for different phases: firstly a few sites had relatively better status than the others, then nearly all the sites were in the bad condition, and at last the status in the downstream was better than that in the upstream. The longitudinal patterns of ecological status were related to phytoplankton distribution, disturbed by jacking from the downstream and flood from the upstream of Xiangxi Bay. (C) 2011 Elsevier B.V. All rights reserved.
KeywordCyanobacterial Bloom Phytoplankton Functional Groups Longitudinal Pattern Ecological Status q Index Tributary Bay
Department[Wang, Lan; Cai, Qinghua; Tan, Lu; Kong, Linghui] Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Wuhan 430072, Peoples R China; [Wang, Lan; Tan, Lu; Kong, Linghui] Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
Subject AreaEnvironmental Sciences & Ecology
Funding OrganizationCAS[KZCX2-YW-427]; National Natural Science Foundation of China[40671197]; State Key Laboratory FEBL[2008FBZ02]; Hubei Key Laboratory of Wetland Evolution & Ecological Restoration ; CAS[KZCX2-YW-427]; National Natural Science Foundation of China[40671197]; State Key Laboratory FEBL[2008FBZ02]; Hubei Key Laboratory of Wetland Evolution & Ecological Restoration ; CAS[KZCX2-YW-427]; National Natural Science Foundation of China[40671197]; State Key Laboratory FEBL[2008FBZ02]; Hubei Key Laboratory of Wetland Evolution & Ecological Restoration ; CAS[KZCX2-YW-427]; National Natural Science Foundation of China[40671197]; State Key Laboratory FEBL[2008FBZ02]; Hubei Key Laboratory of Wetland Evolution & Ecological Restoration
Indexed BySCI
Language英语
WOS IDWOS:000295233900027
Funding OrganizationCAS[KZCX2-YW-427]; National Natural Science Foundation of China[40671197]; State Key Laboratory FEBL[2008FBZ02]; Hubei Key Laboratory of Wetland Evolution & Ecological Restoration ; CAS[KZCX2-YW-427]; National Natural Science Foundation of China[40671197]; State Key Laboratory FEBL[2008FBZ02]; Hubei Key Laboratory of Wetland Evolution & Ecological Restoration ; CAS[KZCX2-YW-427]; National Natural Science Foundation of China[40671197]; State Key Laboratory FEBL[2008FBZ02]; Hubei Key Laboratory of Wetland Evolution & Ecological Restoration ; CAS[KZCX2-YW-427]; National Natural Science Foundation of China[40671197]; State Key Laboratory FEBL[2008FBZ02]; Hubei Key Laboratory of Wetland Evolution & Ecological Restoration
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Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/16427
Collection淡水生态学研究中心_期刊论文
Corresponding AuthorCai, QH (reprint author), Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Wuhan 430072, Peoples R China; qhcai@ihb.ac.cn
Recommended Citation
GB/T 7714
Wang, Lan,Cai, Qinghua,Tan, Lu,et al. Phytoplankton development and ecological status during a cyanobacterial bloom in a tributary bay of the Three Gorges Reservoir, China[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2011,409(19):3820-3828.
APA Wang, Lan,Cai, Qinghua,Tan, Lu,Kong, Linghui,Cai, QH ,&qhcai@ihb.ac.cn.(2011).Phytoplankton development and ecological status during a cyanobacterial bloom in a tributary bay of the Three Gorges Reservoir, China.SCIENCE OF THE TOTAL ENVIRONMENT,409(19),3820-3828.
MLA Wang, Lan,et al."Phytoplankton development and ecological status during a cyanobacterial bloom in a tributary bay of the Three Gorges Reservoir, China".SCIENCE OF THE TOTAL ENVIRONMENT 409.19(2011):3820-3828.
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