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题名: Vertical-Flow Constructed Wetlands Applied in a Recirculating Aquaculture System for Channel Catfish Culture: Effects on Water Quality and Zooplankton
作者: Zhang, Shi-yang ; Zhou, Qiao-hong ; Xu, Dong ; He, Feng ; Cheng, Shui-ping ; Liang, Wei ; Du, Cheng ; Wu, Zhen-bin
通讯作者: Zhang, SY, Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Wuhan 430072, Peoples R China
关键词: water quality ; recirculating aquaculture system ; constructed wetland ; zooplankton ; relationship
刊名: POLISH JOURNAL OF ENVIRONMENTAL STUDIES
发表日期: 2010
卷: 19, 期:5, 页:1063-1070
收录类别: SCI
部门归属: [Zhang, Shi-yang; Zhou, Qiao-hong; Xu, Dong; He, Feng; Cheng, Shui-ping; Liang, Wei; Du, Cheng; Wu, Zhen-bin] Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Wuhan 430072, Peoples R China; [Zhang, Shi-yang; Du, Cheng] Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China; [Zhang, Shi-yang] Chinese Acad Fishery Sci, Yangtze River Fisheries Res Inst, Jinzhou 434000, Peoples R China
资助者: China High Technology Research and Development Program of China (863 Program) [2009ZX07106-002-004]; National Natural Science Foundation of China [30870221, 20877093, 50808172]
摘要:

In recent decades, considerable attention has been paid to the serious water pollution caused by the fast-growing aquaculture industry. On the other side, water quality determines to a great extent the success or failure of an aquaculture operation. So highlighted is the need for sustainable development of aquaculture. In the present work, we established a recirculating aquaculture system (RAS) by vertical-flow constructed wetlands (CWs) for channel catfish (Ictalurus punctatus) culture, and assessed its effects on water quality improvement. The results indicated that the CWs applied in the RAS showed relatively higher removal efficiency for particulate matter (more than 55%) and lower, uneven removal efficiency for nutrients and organic matter (from -34.1% to 48.7%). Paired t-tests showed that only parameters of NH4+-N, TN, COD, BOD5, TSS, and Chl-a were significantly (p<0.05) lowered after wetland treatment. Despite this, nutrients (but NH4+-N, NO2--N, and NO3--N), organic matter, and suspended solids (including plankton) in the recirculating ponds were significantly lowered compared to the control, indicating a decline in trophic status. Multivariate analyses revealed strong relationships between zooplankton community structure and the measured environment in the culture ponds. Cyanobacterial blooms that occurred heavily in the control were strongly restrained in the recirculating ponds. This led to water quality that was suitable for fish culture. Hereby, conclusions could be reached that the recirlulating treatment by the CWs achieved its aim of sustaining or extending water quality improvement in the RAS.

语种: 英语
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/15552
Appears in Collections:水环境工程研究中心_期刊论文

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Recommended Citation:
Zhang, Shi-yang.Vertical-Flow Constructed Wetlands Applied in a Recirculating Aquaculture System for Channel Catfish Culture: Effects on Water Quality and Zooplankton.POLISH JOURNAL OF ENVIRONMENTAL STUDIES,2010,19(5):1063-1070
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