| 题名: | Water quality and growth simulation of channel catfish, Ictalurus punctatus, in a recirculating aquaculture system combined with subsurface flow wetland |
| 作者: | Yu, Tao (1)
; Zhong, Fei (2)
; Xu, Dong (2)
; Zhou, Qiaohong (2)
; Liang, Wei (2)
; He, Feng (2)
; Wu, Zhenbin (2)
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| 会议文集: | Advanced Materials Research
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| 会议名称: | 2011 International Conference on Materials for Environmental Protection and Energy Application, MEPEA 2011
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| 会议日期: | September 27, 2011 - September 28, 2011
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| 出版日期: | 2012
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| 会议地点: | Kuala Lumpur, Malaysia
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| 通讯作者: | Yu, T.(yutao7777@hotmail.com)
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| 出版者: | Trans Tech Publications
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| 出版地: | P.O. Box 1254, Clausthal-Zellerfeld, D-38670, Germany
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| 收录类别: | SCI
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| ISSN: | 1022-6680
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| ISBN: | 9783037852569
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| 部门归属: | (1) School of Chemistry and Chemical Engineering, Xinxiang University, Xinxiang, Henan Province, China; (2) Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, Hubei Province, China
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| 产权排名: | IHB OpenIR
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| 摘要: | Purifying efficiency and culture performance in a recirculating aquaculture system (RAS) combined with subsurface flow wetland (SFW) were investigated in this paper. The results showed that the wetland effectively removed total suspended solids (78.6%), chemical oxygen demand (49.2%), 5-day biochemical oxygen demand (70.4%), total ammonia (53.7%) and nitrite (64.7%) from the aquaculture effluents at a hydraulic loading rate of 344 mm/d. The channel catfish (Ictalurus punctatus) with initial length of 18.97±2.92 cm were reared for 223 days in three recycling ponds at different stocking densities (0.055, 0.109, and 0.164 kg/m3) and a control pond at stocking density 0.055 kg/m3. Fish were fed to satiation twice daily with a commercial diet and the amount fed was measured to determine feed efficiency (FE). In the recycling ponds, fish growth appeared to be negatively correlated with stocking density, in which total weight gain of fish ranged from 374.9% to 886.7%. Fish in the control pond had low survival rate (61.1%) and total weight gain (465.2%), comparing with the recycling pond which had same stocking density (0.055 kg/m3). Feed efficiency (0.34) of the control pond was also significantly lower than that of the 0.055 kg/m3 treatment (0.96). A logistic model of was employed to simulate the growth of channel catfish. The estimated parameters and predicted results showed that the growth rate of channel catfish reared in recycling pond is significantly higher than that in static pond. © (2012) Trans Tech Publications, Switzerland. |
| 内容类型: | 会议论文
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| URI标识: | http://ir.ihb.ac.cn/handle/342005/19375
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| Appears in Collections: | 水环境工程研究中心_会议论文
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