Biomonitoring of lakes of Nagpur city, Maharashtra, India

Abstract

The lakes are considered to be the blue lungs of the city. The phytoplanktons absorb carbondioxide and release oxygen that helps to reform the aquatic system. It supplies oxygen to the life present in lake as well to the surrounding environment. Therefore, proper rejuvenation and restoration of lakes is highly essential.

Nagpur city is surrounded with four major lakes like Ambazari, Gandhisagar, Sonegaon, and Sakkardara lake. The Biomonitoring of Ambazari Lake, Gandhisagar Lake, Sonegaon Lake and Sakkardara Lake have studied and the data have been supported with Physico-chemical parameters of the lakes. Based on the results, Gandhisagar Lake has high inorganic and organic content, than Ambazari and Sonegaon Lake while, Sakkardara lake has more metal toxicity. The studies of Planktons (Phytoplankton and Zooplankton) were assessed by Shannon Weiner Diversity Index and Benthic Macroinvertebrates were evaluated by Saprobic Score which indicates the contamination and quality of water. According to Shannon Weinner Diversity Index, the Gandhisagar lake has shown higher pollution than any other lakes. The Saprobic Index of Ambazari lake and Sakkardara lake indicates moderate pollution and Sonegaon lake represents the slight pollution.