Alkaline phosphatase as a bio-indicator of phosphorus-eutrophy in freshwater ecosystems:A review  

作　　者：Madhulika Singh Jitendra Pandey 

机构地区：[1]Ganga River Ecology Research Laboratory,Environmental Science Division,Centre of Advanced Study in Botany,Institute of Science,Banaras Hindu University,Varanasi 221005,India

出　　处：《International Journal of Sediment Research》2023年第3期349-360,共12页国际泥沙研究（英文版）

基　　金：the University Grant Commission for financial support as the Dr.D.S.Kothari Post-Doctoral Fellowship to MS (Grant No.DSKPDF-BL/18-19/0173)。

摘　　要：Limnologists have greatly advanced the understanding of indicators of phosphorus(P)-eutrophy in surface waters.Biotic variables such as macro-invertebrates,fish,zooplankton,benthic algae,and diatoms are extensively used for bio-assessment of eutrophy.New concepts highlight the importance of bed-sediment based“response”variables predicting functional shifts during eutrophication.A cross analysis of studies reveals that alkaline phosphatase(ALP),which serves as a proxy of P-deficiency,and also as an indicator of benthic anoxia/hypoxia-driven feedbacks,can be an easy to measure,cost-effective and reliable tool to assess changes in nutrient stoichiometry,trophic status,and ecological functioning at the sediment-water interface.Here,the issues discussed in this paper are highly relevant to explore new domains of research and“response”based ecosystem models for potential eutrophication management decisions.Because ALP is used in molecular cloning and fingerprinting studies,it is suggested that approaches based on the“omics”technologies need to be used to explore more intricate connections to empirically address ALP-P-eutrophy linkages to track eutrophication in freshwater ecosystems.

关 键 词：Alkaline phosphatase Sediment based-indicators Ecosystem feedback Nutrient stoichiometry Phosphorus-eutrophy 

分 类 号：X52[环境科学与工程—环境工程]