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Assessment effects of cage culture on nitrogen and phosphorus dynamics in relation to fallowing in a shallow lake in China
Guo, Longgen; Li, Zhongjie; Xie, Ping; Ni, Leyi; Guo, LG, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol China, Donghu Expt Stn Lake Ecosyst, Wuhan 430072, Peoples R China
2009-06-01
Source PublicationAQUACULTURE INTERNATIONAL
ISSN0967-6120
Volume17Issue:3Pages:229-241
AbstractNitrogen and phosphorus dynamics in relation to fallowing in a fish cage farm was investigated in a shallow lake in China. Four sampling sites were set: beneath the cages, at the cage sides, and 50 and 100 m east of the cage farm. Total nitrogen (TN) and total phosphorus (TP) in lake water and sediment were analyzed during a 2-year rearing cycle. The cage culture had a fish yield of 16.3-39.2 tonnes in the study period. Based on the mass balance equation, 1533-3084 kg TN and 339-697 kg TP were contributed to the lake environment. Nitrogen and phosphorous concentrations showed greater increase in the first culture period than in the second rearing cycle. No obvious changes were found at the sampling sites 50 and 100 m east of the cages during the study periods. Main impacts were found close to the cages (beneath the cages and at the cage side); the sampling points at the cage side showed relatively high TN and TP sedimentation. After 3 months of fallowing, water TN and TP decreased significantly but the sediment TN and TP contents remained high. Therefore, recovery seems to happen during fallowing but attention should be paid to whether the culture continues to operate in the future.; Nitrogen and phosphorus dynamics in relation to fallowing in a fish cage farm was investigated in a shallow lake in China. Four sampling sites were set: beneath the cages, at the cage sides, and 50 and 100 m east of the cage farm. Total nitrogen (TN) and total phosphorus (TP) in lake water and sediment were analyzed during a 2-year rearing cycle. The cage culture had a fish yield of 16.3-39.2 tonnes in the study period. Based on the mass balance equation, 1533-3084 kg TN and 339-697 kg TP were contributed to the lake environment. Nitrogen and phosphorous concentrations showed greater increase in the first culture period than in the second rearing cycle. No obvious changes were found at the sampling sites 50 and 100 m east of the cages during the study periods. Main impacts were found close to the cages (beneath the cages and at the cage side); the sampling points at the cage side showed relatively high TN and TP sedimentation. After 3 months of fallowing, water TN and TP decreased significantly but the sediment TN and TP contents remained high. Therefore, recovery seems to happen during fallowing but attention should be paid to whether the culture continues to operate in the future.
SubtypeArticle
KeywordCage Fish Farm Nitrogen And Phosphorous Loading Dynamic Fallowing Lake Eutrophication
Department[Guo, Longgen; Li, Zhongjie; Xie, Ping; Ni, Leyi] Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol China, Donghu Expt Stn Lake Ecosyst, Wuhan 430072, Peoples R China
Subject AreaFisheries
DOI10.1007/s10499-008-9195-5
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
Funding OrganizationKey Lab of Freshwater Fish Germplasm and Biotechnology ; Ministry of Agriculture [LFB20070602] ; Key Lab of Freshwater Fish Germplasm and Biotechnology ; Ministry of Agriculture [LFB20070602] ; Key Lab of Freshwater Fish Germplasm and Biotechnology ; Ministry of Agriculture [LFB20070602] ; Key Lab of Freshwater Fish Germplasm and Biotechnology ; Ministry of Agriculture [LFB20070602]
Indexed BySCI
Language英语
WOS Research AreaFisheries
WOS SubjectFisheries
WOS IDWOS:000266337200003
WOS KeywordORGANIC ENRICHMENT ; ENVIRONMENTAL IMPACTS ; FISH FARM ; AQUACULTURE ; SEDIMENTS ; SALMON ; MANAGEMENT ; RECOVERY ; NORWAY ; WASTE
Funding OrganizationKey Lab of Freshwater Fish Germplasm and Biotechnology ; Ministry of Agriculture [LFB20070602] ; Key Lab of Freshwater Fish Germplasm and Biotechnology ; Ministry of Agriculture [LFB20070602] ; Key Lab of Freshwater Fish Germplasm and Biotechnology ; Ministry of Agriculture [LFB20070602] ; Key Lab of Freshwater Fish Germplasm and Biotechnology ; Ministry of Agriculture [LFB20070602]
Citation statistics
Cited Times:33[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/152342/7732
Collection期刊论文
Corresponding AuthorGuo, LG, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol China, Donghu Expt Stn Lake Ecosyst, Wuhan 430072, Peoples R China
AffiliationChinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol China, Donghu Expt Stn Lake Ecosyst, Wuhan 430072, Peoples R China
Recommended Citation
GB/T 7714
Guo, Longgen,Li, Zhongjie,Xie, Ping,et al. Assessment effects of cage culture on nitrogen and phosphorus dynamics in relation to fallowing in a shallow lake in China[J]. AQUACULTURE INTERNATIONAL,2009,17(3):229-241.
APA Guo, Longgen,Li, Zhongjie,Xie, Ping,Ni, Leyi,&Guo, LG, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol China, Donghu Expt Stn Lake Ecosyst, Wuhan 430072, Peoples R China.(2009).Assessment effects of cage culture on nitrogen and phosphorus dynamics in relation to fallowing in a shallow lake in China.AQUACULTURE INTERNATIONAL,17(3),229-241.
MLA Guo, Longgen,et al."Assessment effects of cage culture on nitrogen and phosphorus dynamics in relation to fallowing in a shallow lake in China".AQUACULTURE INTERNATIONAL 17.3(2009):229-241.
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