Durlov Lahon

Research Scholar, Department of Geography, Gauhati University, Guwahati-781014 (India) Email: durlovlahon20@gmail.com


Eutrophication is a process by which a water body became enriched in dissolved nutrients such as phosphates, nitrogen, etc. that stimulates the growth of aquatic plants usually resulting in the depletion of dissolved oxygen. The continuous depletion of dissolved oxygen in a water body hazardously affects aquatic life. The eutrophication impacts the biodiversity of an aquatic ecosystem through an increase of aquatic macrophytes, growth of algal blooms and rooted plants, and decrease the species richness. It also causes significant changes of the physicochemical properties of water such as turbidity, Biochemical Oxygen Demand (BOD), Dissolved Oxygen (DO), water pH, temperature, etc. Thus eutrophication is recognized as a major problem of the freshwater ecosystem globally. This study identified the major causes of eutrophication and its consequences in an aquatic ecosystem.

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