The management of undesirable cyanobacteria blooms in channel catfish ponds using a constructed wetland: Contribution to the control of off-flavor occurrences

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	The management of undesirable cyanobacteria blooms in channel catfish ponds using a constructed wetland: Contribution to the control of off-flavor occurrences
	Zhong, Fei 1,2; Gao, Yunni 1; Yu, Tao 1; Zhang, Yongyuan 1; Xu, Dong 1; Xiao, Enrong 1; He, Feng 1; Zhou, Qiaohong 1; Wu, Zhenbin 1
刊名	WATER RESEARCH
	2011-12-01
卷号	45 期号:19 页码:6479-6488
关键词	Constructed wetland Aquaculture Cyanobacteria Off-flavor problems Canonical correspondence analysis
ISSN号	0043-1354
通讯作者	Wu, Z.(wuzb@ihb.ac.cn)
中文摘要	An exploratory study on the management of undesirable cyanobacteria blooms with respect to off-flavor problems using an integrated vertical-flow constructed wetland (CW) was performed at a small commercial-scale channel catfish farm from 2004 to 2007. The results of the three-year experiment indicated that water treatment by the CW could reduce the possibility of dominance by undesirable cyanobacteria species that often cause off-flavor problems. A detailed investigation in 2007, showed that the concentrations of geosmin, MIB (2-methylisoborneol), and β-cyclocitral in the water of the recirculating pond (4.3ngL^-1, U.D. (undetected) and 0.2ngL^-1, respectively) treated by the CW were significantly lower than those in the control pond (152.6ngL^-1, 63.3ngL^-1 and 254.8ngL^-1, respectively). In addition, the relationships among the cyanobacteria species, the off-flavor compounds and ten environmental variables were explored by canonical correspondence analysis (CCA). The results showed that Oscillatoria sp., Oscillatoria kawamurae and Microcystis aeruginosa were the main sources of off-flavor compounds in the catfish ponds. The successful manipulation of undesirable cyanobacteria species potentially resulted in lower concentrations of odorous compounds in the water of the recirculating pond. An investigation of the concentrations of geosmin and MIB in catfish fillets showed that the levels of odorous compounds were below the OTC (odor threshold concentration) values in the recirculating pond but were above the OTC values from July to October in the control pond. Water recycling by the CW could potentially be one of the best management practices to control off-flavor occurrences in aquaculture.
英文摘要	An exploratory study on the management of undesirable cyanobacteria blooms with respect to off-flavor problems using an integrated vertical-flow constructed wetland (CW) was performed at a small commercial-scale channel catfish farm from 2004 to 2007. The results of the three-year experiment indicated that water treatment by the CW could reduce the possibility of dominance by undesirable cyanobacteria species that often cause off-flavor problems. A detailed investigation in 2007, showed that the concentrations of geosmin, MIB (2-methylisoborneol), and beta-cyclocitral in the water of the recirculating pond (4.3 ng L(-1), U.D. (undetected) and 0.2 ng L(-1), respectively) treated by the CW were significantly lower than those in the control pond (152.6 ng L(-1), 63.3 ng L(-1) and 254.8 ng L(-1), respectively). In addition, the relationships among the cyanobacteria species, the off-flavor compounds and ten environmental variables were explored by canonical correspondence analysis (CCA). The results showed that Oscillatoria sp., Oscillatoria kawamurae and Microcystis aeruginosa were the main sources of off-flavor compounds in the catfish ponds. The successful manipulation of undesirable cyanobacteria species potentially resulted in lower concentrations of odorous compounds in the water of the recirculating pond. An investigation of the concentrations of geosmin and MIB in catfish fillets showed that the levels of odorous compounds were below the OTC (odor threshold concentration) values in the recirculating pond but were above the OTC values from July to October in the control pond. Water recycling by the CW could potentially be one of the best management practices to control off-flavor occurrences in aquaculture. (C) 2011 Elsevier Ltd. All rights reserved.
WOS标题词	Science & Technology ; Technology ; Life Sciences & Biomedicine ; Physical Sciences
类目[WOS]	Engineering, Environmental ; Environmental Sciences ; Water Resources
研究领域[WOS]	Engineering ; Environmental Sciences & Ecology ; Water Resources
关键词[WOS]	BLUE-GREEN-ALGAE ; ICTALURUS-PUNCTATUS ; LAKE PHYTOPLANKTON ; PHOSPHORUS RATIOS ; MASS-SPECTROMETRY ; ODOROUS COMPOUNDS ; COMMERCIAL PONDS ; RAINBOW-TROUT ; SILVER CARP ; WATER
收录类别	SCI
语种	英语
WOS记录号	WOS:000297485600019
公开日期	2012-03-20
内容类型	期刊论文
源URL	[http://ir.ihb.ac.cn/handle/342005/16678]
专题	水生生物研究所_水环境工程研究中心_期刊论文
作者单位	1.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China 2.Marine Fisheries Res Inst Jiangsu Prov, Nantong 226007, Peoples R China
推荐引用方式 GB/T 7714	Zhong, Fei,Gao, Yunni,Yu, Tao,et al. The management of undesirable cyanobacteria blooms in channel catfish ponds using a constructed wetland: Contribution to the control of off-flavor occurrences[J]. WATER RESEARCH,2011,45(19):6479-6488.
APA	Zhong, Fei.,Gao, Yunni.,Yu, Tao.,Zhang, Yongyuan.,Xu, Dong.,...&Wu, Zhenbin.(2011).The management of undesirable cyanobacteria blooms in channel catfish ponds using a constructed wetland: Contribution to the control of off-flavor occurrences.WATER RESEARCH,45(19),6479-6488.
MLA	Zhong, Fei,et al."The management of undesirable cyanobacteria blooms in channel catfish ponds using a constructed wetland: Contribution to the control of off-flavor occurrences".WATER RESEARCH 45.19(2011):6479-6488.