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学科主题: Fisheries; Marine & Freshwater Biology
题名: Kinetics of alkaline phosphatase in lake sediment associated with cage culture of Oreochromis niloticus
作者: Zhou Yiyong ; Li Jianqiu ; Fu Yongqing ; Zhang Min
通讯作者: Zhou, YY, Chinese Acad Sci, Inst Hydrobiol, Donghu Lake Ecosyst Expt Stn, Wuhan 430072, Peoples R China
关键词: alkaline phosphatase ; kinetics ; cage culture ; fish feces
刊名: AQUACULTURE
发表日期: 2001
卷: 203, 期:1-2, 页:23-32
收录类别: SCI
部门归属: Chinese Acad Sci, Inst Hydrobiol, Donghu Lake Ecosyst Expt Stn, Wuhan 430072, Peoples R China
摘要: Variations in kinetics of alkaline phosphatase occurring in different sites of sediment associated with cage culture of Oreochromis niloticus in a shallow Chinese freshwater lake (Lake Donghu) were described. In addition, the kinetic parameters of each 2.5-cm stratum in the sediment from the surface down to 37.5 cm were analyzed. Horizontally, the V-max values of alkaline phosphatase in surface sediments increased markedly at sites immediately under and adjacent to the cage that would be subjected to the deposition of fish feces. Peak V-max values in the top 5 cm of the sediment under the cage were also observed relative to their deeper control. After a treatment where the fish feces were added over 12 days, the sediment in deeper layer exhibited a significantly higher V-max value, thereby corroborating the relationship between V-max values of alkaline phosphatase and fish feces in sediments. The fish feces exhibited a remarkable alkaline phosphatase activity (APA). Thus, it is indeed a source of the enzyme. Effects of the fish feces were dose- and time-dependent. The V-max values in sediments were always stimulated, but the K-m values showed much more variability. (C) 2001 Elsevier Science B.V. All rights reserved.
语种: 英语
WOS记录号: WOS:000172507000003
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/152342/9914
Appears in Collections:中科院水生所知识产出(2009年前)_期刊论文

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Zhou Yiyong; Li Jianqiu; Fu Yongqing; Zhang Min.Kinetics of alkaline phosphatase in lake sediment associated with cage culture of Oreochromis niloticus,AQUACULTURE,2001,203(1-2):23-32
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