title: Plankton community succession in artificial systems subjected to cyanobacterial blooms removal using chitosan-modified soils.
abstract: Using artificial systems to simulate natural lake environments with cyanobacterial blooms, we investigated plankton community succession by polymerase chain reaction-denaturing gradient gel electrophoresis (PCR-DGGE) fingerprinting and morphological method. With this approach, we explored potential ecological effects of a newly developed cyanobacterial blooms removal method using chitosan-modified soils. Results of PCR-DGGE and morphological identification showed that plankton communities in the four test systems were nearly identical at the beginning of the experiment. After applying the newly developed and standard removal methods, there was a shift in community composition, but neither chemical conditions nor plankton succession were significantly affected by the cyanobacteria removal process. The planted Vallisneria natans successfully recovered after cyanobacteria removal, whereas that in the box without removal process did not. Additionally, canonical correspondence analysis indicated that other than for zooplankton abundance, total phosphorus was the most important environmental predictor of planktonic composition. The present study and others suggest that dealing with cyanobacteria removal using chitosan-modified soils can play an important role in controlling cyanobacterial blooms in eutrophicated freshwater systems.
authors.affiliation: State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, People's Republic of China.
authors.forename: Qingyun
authors.initials: Q
authors.lastname: Yan
authors.forename: Yuhe
authors.initials: Y
authors.lastname: Yu
authors.forename: Weisong
authors.initials: W
authors.lastname: Feng
authors.forename: Gang
authors.initials: G
authors.lastname: Pan
authors.forename: Hao
authors.initials: H
authors.lastname: Chen
authors.forename: Juan
authors.initials: J
authors.lastname: Chen
authors.forename: Bo
authors.initials: B
authors.lastname: Yang
authors.forename: Xuemei
authors.initials: X
authors.lastname: Li
authors.forename: Xiang
authors.initials: X
authors.lastname: Zhang
mesh_terms: D048271:Chitosan; D000458:Cyanobacteria / Q000235:genetics / Q000254:growth & development*; D016172:DNA Fingerprinting; D017753:Ecosystem; D004591:Electrophoresis, Polyacrylamide Gel; D005068:Eutrophication; D010758:Phosphorus / Q000032:analysis; D010933:Plankton / Q000235:genetics / Q000254:growth & development*; D012329:RNA, Bacterial / Q000235:genetics; D012987:Soil; D014871:Water Microbiology
chemical_list: D012329:RNA, Bacterial; D012987:Soil; D010758:Phosphorus; D048271:Chitosan
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