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      Physicochemical Process, Crustacean, and Microcystis Biomass Changes In Situ Enclosure after Introduction of Silver Carp at Meiliang Bay, Lake Taihu

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          Abstract

          In order to control cyanobacteria blooms with silver carp in Lake Taihu, an in situ experiment was carried out by stocking silver carp at a biomass of 35, 70, and 150 g m −3 and no carp control in waterproof enclosures. Physicochemical water parameters and biomass of plankton were measured in enclosures to evaluate the suitable stocking density of silver carp for relieving internal nutrients and constraining cyanobacteria growth in Lake Taihu. It is found that the 35 g m −3 silver carp group and 70 g m −3 silver carp group presented lower total phosphorus, lower chlorophyll- a, and higher water transparency. Increased nitrogen to phosphorus ratio, which indicated the result of algae decline in fish presence enclosures, was attributed to decline of phosphorus. Phosphorus decline also exerted limitation on reestablish of cyanobacteria bloom. Crustacean zooplankton biomass and Microcystis biomass decreased significantly in fish presence enclosures. Silver carp could be more effective to regulate algae bloom in enclosures with dense cyanobacteria. Therefore, nonclassic manipulation is supposed to be appropriate method to get rid of cyanobacteria blooms in Lake Taihu by stocking 35 to 70 g m −3 silver carp in application.

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          Most cited references29

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            Trophic Relationships in Freshwater Pelagic Ecosystems

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              Long-term responses to fish-stock reduction in small shallow lakes: interpretation of five-year results of four biomanipulation cases in The Netherlands and Denmark

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                Author and article information

                Journal
                Scientifica (Cairo)
                Scientifica (Cairo)
                SCIENTIFICA
                Scientifica
                Hindawi Publishing Corporation
                2090-908X
                2017
                5 January 2017
                : 2017
                : 9643234
                Affiliations
                1Donghu Experimental Station of Lake Ecosystems, State Key Laboratory for Freshwater Ecology and Biotechnology of China, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
                2University of Chinese Academy of Sciences, Beijing 100049, China
                3Collaborative Innovation Center for Efficient and Health Production of Fisheries in Hunan Province, Key Laboratory of Health Aquaculture and Product Processing in Dongting Lake Area of Hunan Province, Hunan University of Arts and Science, Changde 415000, China
                Author notes

                Academic Editor: Qiang Wang

                Author information
                http://orcid.org/0000-0003-1771-1119
                Article
                10.1155/2017/9643234
                5244019
                de600d27-ff4e-4c0a-ad6a-d2d3d5f14695
                Copyright © 2017 Chengjie Yin et al.

                This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

                History
                : 2 September 2016
                : 23 November 2016
                Funding
                Funded by: National Science and Technology Ministry
                Award ID: 2014BAC09B02
                Funded by: National High Technology Research and Development Program of China
                Award ID: 2012ZX07105-004
                Categories
                Research Article

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