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Biomanipulation in mesocosms using silver carp in two Chinese lakes with distinct trophic states
Yi, Chunlong1; Guo, Longgen1; Ni, Leyi1; Yin, Chengjie1; Wan, Jing2; Yuan, Changbo3
2016-02-01
Source PublicationAQUACULTURE
ISSN0044-8486
Volume452Issue:*Pages:233-238
AbstractArtificial enhancement of lakes using filter-feeding silver carp is a technique that is widely used to manipulate and/or promote fisheries' production in Chinese lakes. To evaluate the impact of this enhancement on nutrient cycling in the water column, we analyzed two silver carp biomass gradient testing sites by stocking experimental enclosures within Lake Taihu (eutrophic) with 0, 35, 70 and 150 g m(-3) of silver carp biomass and those within Lake Erhai (mesotrophic) with 0, 20, 50 and 100 g m(-3) of silver carp biomass. Total phosphorus and dissolved nitrogen were obviously influenced by the fish density. At relatively low densities, the silver carp were able to graze for particles of food directly, resulting in a decline in phosphorus and chlorophyll-a levels within the Lake Taihu enclosures. When fish were introduced to the Lake Erhai enclosures, chlorophyll-a levels increased. Increased dissolved nitrogen levels were recorded in the Lake Taihu enclosures during the experiment, while the enhanced uptake of nutrients by increased algae resulted in decreased dissolved nitrogen levels in the Lake Erhai enclosures. We hypothesize that although silver carp could potentially reduce cyanobacteria in water bodies with large algal blooms, the relatively small change in fish in Lake Taihu is still too minor to control severe algal blooms. In relatively clean water bodies such as Lake Erhai, artificial ecological enhancement using silver carp should be evaluated carefully before action is taken in order to assess the risk of increasing small algal blooms and nutrients. (C) 2015 Elsevier B.V. All rights reserved.
SubtypeArticle
KeywordSilver Carp Nutrient Cycling Algal Bloom Lake Taihu Lake Erhai
DOI10.1016/j.aquaculture.2015.11.002
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
Indexed BySCI
Funding OrganizationNational Water Pollution Control and Management Technology Major Projects(2012ZX07105-004 ; 2012ZX07101-002) ; National Water Pollution Control and Management Technology Major Projects(2012ZX07105-004 ; 2012ZX07101-002)
Language英语
WOS Research AreaFisheries ; Marine & Freshwater Biology
WOS SubjectFisheries ; Marine & Freshwater Biology
WOS KeywordFILTER-FEEDING FISH ; HYPOPHTHALMICHTHYS-MOLITRIX ; ENCLOSURE EXPERIMENT ; TROPICAL RESERVOIR ; ZOOPLANKTON ; ECOSYSTEMS ; PHYTOPLANKTON ; STOCKING ; TAIHU ; EUTROPHICATION
WOS IDWOS:000366205900030
Funding OrganizationNational Water Pollution Control and Management Technology Major Projects(2012ZX07105-004 ; 2012ZX07101-002) ; National Water Pollution Control and Management Technology Major Projects(2012ZX07105-004 ; 2012ZX07101-002)
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/27453
Collection淡水生态学研究中心
Affiliation1.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol China, Donghu Expt Stn Lake Ecosyst, Wuhan 430072, Hubei Province, Peoples R China
2.Yangtze Univ, Coll Anim Sci, Jingzhou 434025, Peoples R China
3.Yangtze Univ, Coll Hort & Garden, Jingzhou 434025, Peoples R China
Recommended Citation
GB/T 7714
Yi, Chunlong,Guo, Longgen,Ni, Leyi,et al. Biomanipulation in mesocosms using silver carp in two Chinese lakes with distinct trophic states[J]. AQUACULTURE,2016,452(*):233-238.
APA Yi, Chunlong,Guo, Longgen,Ni, Leyi,Yin, Chengjie,Wan, Jing,&Yuan, Changbo.(2016).Biomanipulation in mesocosms using silver carp in two Chinese lakes with distinct trophic states.AQUACULTURE,452(*),233-238.
MLA Yi, Chunlong,et al."Biomanipulation in mesocosms using silver carp in two Chinese lakes with distinct trophic states".AQUACULTURE 452.*(2016):233-238.
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