Variability of algal blooms and the trophic state index for Dighalipukhuri in Guwahati, Assam

Abstract

Algae react to changes in their environment, such as temperature, nutrients, etc. The uncertainty in aquatic environments exacerbates several interacting pressures. As a result, lakes are vital to society because they help to mitigate flood risks. It maintains the natural equilibrium, allowing flora and fauna to flourish. The primary objective of this research is to identify the trophic state index, category, and algal assemblages of Dighalipukhuri Lake. The findings show that algal blooms of the Microcystis species are the most abundant and have a higher occupancy in the Dighalipukhuri Lake, which has a TSI of 58.6, indicating that it is Supereutrophic. Thus revealing that the quality is poor and unsatisfactory.