Kinetics of alkaline phosphatase in lake sediment associated with cage culture of Oreochromis niloticus | |
Zhou, YY; Li, JQ; Fu, YQ; Zhang, M | |
刊名 | AQUACULTURE
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2001-11-26 | |
卷号 | 203期号:1-2页码:23-32 |
关键词 | alkaline phosphatase kinetics cage culture fish feces |
ISSN号 | 0044-8486 |
通讯作者 | Zhou, YY, Chinese Acad Sci, Inst Hydrobiol, Donghu Lake Ecosyst Expt Stn, Wuhan 430072, Peoples R China |
中文摘要 | 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. |
英文摘要 | 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. |
学科主题 | Fisheries; Marine & Freshwater Biology |
WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
类目[WOS] | Fisheries ; Marine & Freshwater Biology |
研究领域[WOS] | Fisheries ; Marine & Freshwater Biology |
关键词[WOS] | WASTES |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000172507000003 |
公开日期 | 2010-10-13 |
内容类型 | 期刊论文 |
源URL | [http://ir.ihb.ac.cn/handle/152342/9914] ![]() |
专题 | 水生生物研究所_中科院水生所知识产出(2009年前)_期刊论文 |
作者单位 | Chinese Acad Sci, Inst Hydrobiol, Donghu Lake Ecosyst Expt Stn, Wuhan 430072, Peoples R China |
推荐引用方式 GB/T 7714 | Zhou, YY,Li, JQ,Fu, YQ,et al. Kinetics of alkaline phosphatase in lake sediment associated with cage culture of Oreochromis niloticus[J]. AQUACULTURE,2001,203(1-2):23-32. |
APA | Zhou, YY,Li, JQ,Fu, YQ,&Zhang, M.(2001).Kinetics of alkaline phosphatase in lake sediment associated with cage culture of Oreochromis niloticus.AQUACULTURE,203(1-2),23-32. |
MLA | Zhou, YY,et al."Kinetics of alkaline phosphatase in lake sediment associated with cage culture of Oreochromis niloticus".AQUACULTURE 203.1-2(2001):23-32. |
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