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Impacts of two biomanipulation fishes stocked in a large pen on the plankton abundance and water quality during a period of phytoplankton seasonal succession
Ke, Zhi-Xin; Xie, Ping; Guo, Long-Gen; Xie, P, Chinese Acad Sci, Donghu Expt Stn Lake Ecosyst, State Key Lab Freshwater Ecol & Biotechnol China, Inst Hydrobiol,Grad Sch, Wuhan 430072, Peoples R China
2009-11-01
Source PublicationECOLOGICAL ENGINEERING
ISSN0925-8574
Volume35Issue:11Pages:1610-1618
AbstractSilver and bighead carp were stocked in a large pen to control the nuisance cyanobacterial blooms in Meiliang Bay of Lake Taihu. Plankton abundance and water quality were investigated about once a week from 9 May to 7 July in 2005. Biomass of both total crustacean zooplankton and cladocerans was significantly suppressed by the predation of pen-cultured fishes. There was a significant negative correlation between the N:P weight ratio and phytoplankton biomass. The size-selective predation by the two carps had no effect on the biomass of green alga Ulothrix sp. It may be attributed to the low fish stocking density (less than 40 g m(-3)) before June. When Microcystis dominated in the water of fish pen, the pen-cultured carps effectively suppressed the biomass of Microcystis, as indicated by the significant decline of chlorophyll a in the >38 mu m fractions of the fish pen. Based on the results of our experiment and previous other studies, we conclude that silver and bighead carp are two efficient biomanipulation tools to control cyanobacterial (Microcystis) blooms in the tropical/subtropical eutrophic waters. Moreover, we should maintain an enough stocking density for an effective control of phytoplankton biomass. (C) 2008 Elsevier B.V All rights reserved; Silver and bighead carp were stocked in a large pen to control the nuisance cyanobacterial blooms in Meiliang Bay of Lake Taihu. Plankton abundance and water quality were investigated about once a week from 9 May to 7 July in 2005. Biomass of both total crustacean zooplankton and cladocerans was significantly suppressed by the predation of pen-cultured fishes. There was a significant negative correlation between the N:P weight ratio and phytoplankton biomass. The size-selective predation by the two carps had no effect on the biomass of green alga Ulothrix sp. It may be attributed to the low fish stocking density (less than 40 g m(-3)) before June. When Microcystis dominated in the water of fish pen, the pen-cultured carps effectively suppressed the biomass of Microcystis, as indicated by the significant decline of chlorophyll a in the >38 mu m fractions of the fish pen. Based on the results of our experiment and previous other studies, we conclude that silver and bighead carp are two efficient biomanipulation tools to control cyanobacterial (Microcystis) blooms in the tropical/subtropical eutrophic waters. Moreover, we should maintain an enough stocking density for an effective control of phytoplankton biomass. (C) 2008 Elsevier B.V All rights reserved
SubtypeArticle
KeywordBiomanipulation Filter-feeding Fish Pen Culture Silver Carp Bighead Carp Microcystis
Department[Ke, Zhi-Xin; Xie, Ping; Guo, Long-Gen] Chinese Acad Sci, Donghu Expt Stn Lake Ecosyst, State Key Lab Freshwater Ecol & Biotechnol China, Inst Hydrobiol,Grad Sch, Wuhan 430072, Peoples R China
Subject AreaEcology ; Engineering, Environmental ; Environmental Sciences
DOI10.1016/j.ecoleng.2008.01.006
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine ; Technology
Funding Organization863 project [2002AA601011] ; 863 project [2002AA601011] ; 863 project [2002AA601011] ; 863 project [2002AA601011]
Indexed BySCI
Language英语
WOS Research AreaEnvironmental Sciences & Ecology ; Engineering
WOS SubjectEcology ; Engineering, Environmental ; Environmental Sciences
WOS IDWOS:000271700000007
WOS KeywordCARP HYPOPHTHALMICHTHYS-MOLITRIXON ; SILVER CARP ; BIGHEAD CARP ; ARISTICHTHYS-NOBILIS ; ENCLOSURE EXPERIMENT ; FEEDING SELECTIVITY ; COMMUNITY STRUCTURE ; HYPERTROPHIC LAKE ; SHALLOW LAKE ; CLEAR-WATER
Funding Organization863 project [2002AA601011] ; 863 project [2002AA601011] ; 863 project [2002AA601011] ; 863 project [2002AA601011]
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/152342/7488
Collection期刊论文
Corresponding AuthorXie, P, Chinese Acad Sci, Donghu Expt Stn Lake Ecosyst, State Key Lab Freshwater Ecol & Biotechnol China, Inst Hydrobiol,Grad Sch, Wuhan 430072, Peoples R China
AffiliationChinese Acad Sci, Donghu Expt Stn Lake Ecosyst, State Key Lab Freshwater Ecol & Biotechnol China, Inst Hydrobiol,Grad Sch, Wuhan 430072, Peoples R China
Recommended Citation
GB/T 7714
Ke, Zhi-Xin,Xie, Ping,Guo, Long-Gen,et al. Impacts of two biomanipulation fishes stocked in a large pen on the plankton abundance and water quality during a period of phytoplankton seasonal succession[J]. ECOLOGICAL ENGINEERING,2009,35(11):1610-1618.
APA Ke, Zhi-Xin,Xie, Ping,Guo, Long-Gen,&Xie, P, Chinese Acad Sci, Donghu Expt Stn Lake Ecosyst, State Key Lab Freshwater Ecol & Biotechnol China, Inst Hydrobiol,Grad Sch, Wuhan 430072, Peoples R China.(2009).Impacts of two biomanipulation fishes stocked in a large pen on the plankton abundance and water quality during a period of phytoplankton seasonal succession.ECOLOGICAL ENGINEERING,35(11),1610-1618.
MLA Ke, Zhi-Xin,et al."Impacts of two biomanipulation fishes stocked in a large pen on the plankton abundance and water quality during a period of phytoplankton seasonal succession".ECOLOGICAL ENGINEERING 35.11(2009):1610-1618.
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