Tapash Debnath and Monojit Ray
A river is a natural flowing watercourse (stream), that is like a vain of the earth. Usually rivers contain freshwater and also flowing on the surface of Earth. Rivers are an important part of the water cycle. Damodar river is a rain fed river and it is shallow, wide and flashy. Its originated from near the Khamarpat hill on Chotanagpur Plateau in the Palamau district of Jharkhand and mouth is Hooghly River, Howrah district, West Bengal. Damodar river flows through the industrial towns of Chandrapura, Ramgarh, Bokaro, Jharia, Sindri, Dhanbad, Asansol, Andal, Durgapur, Burdwan and Howrah. As like water bodies, rivers also serve crucial ecological functions by providing and feeding freshwater habitats for aquatic and semiaquatic flora and fauna. With also help to grow up the terrestrial ecosystems. Rivers are significant to mankind like civilizations, for the purpose of drinking water, irrigation and food supply. Beside the water of the river it’s self a natural resources and also contain huge amount of natural resources. Though the river containing huge amount of aquatic plants and animals but the aquatic biodiversity of the river controlled by Physico-chemical parameters of river water like Temperature, pH, conductance, salinity, turbidity, dissolved oxygen (DO), biological oxygen demand (BOD), total dissolved solids (TDS) and hardness. The present study shows the seasonal variation of Physico-chemical parameters of Damodar river water during the period of February 2022 to January 2023 and analysed how the Physico-chemical parameters are influence on the lotic ecosystem of Damodar river.
Keywords: Damodar river, Civilization, Physico-chemical parameters, Seasonal variation etc.