The Physico-chemical characteristic of Ujain pond in Duroandha block of Siwan district was studied. This investigation was focused on the seasonal fluctuation in water quality parameters from 2017 to 2019. The study showing that water quality of this pond comply with suitability to growth of planktonic and fishes if managed properly to check over increasing pollution in recent years as the pond can be classified as mesotrophic and under pressure of anthropogenic disturbances and agricultural drainage from surrounding agricultural fields.

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