“…Ecologists use diversity indexes as an important tool to understand community structure in terms of richness, uniformity, or the total number of individuals in existence (Allan, 1975); a central concept in a measure of ecosystem health (Daly et al, 2018); since the health status of an aquatic ecosystem largely depends on the diversity and density of zooplankton inhabiting the body of water (Dutta, 2021). Zooplankton species richness can vary based on several factors, including geographic region, trophic type, morphometric characteristics, or even the origin of a body of water (Duggan et al, 2002;Vijayakumari et al, 2018). It also depends on the extent of anthropogenic transformation in the vicinity of a pond (Bhuyan et al, 2020;Kuczy nska-Kippen, 2020) and phychochemical charactrestics (Mozumder et al, 2010;Niyoyitungiye et al, 2020aNiyoyitungiye et al, , 2020b.…”