3.4 Cladocera
Totally 11 species of Cladocera belonging to 5 genera was recorded during the study period.
The recorded population density was ranged from 425 to 825 (ind./L) (Table 3). A maximum cladocera population (825 ind./L) was observed during April and minimum population (425 ind./L) noticed in October.
The species dominance was ranged between 0.108 and 0.119 with minimum recorded during October while maximum in April.
The Shannon diversity index (H) was found to be maximum (2.308) in the month of June and minimum (2.246) was noticed in October.
Simpson’s diversity index was maximum (0.892) in April and minimum (0.880) in October.
Species evenness was recorded to be high (0.914) in April and low (0.859) in October.
The Margalef index (R1) species richness was resulted maximum (1.652) during October and minimum (1.489) was reported in April.
The maximum Menhinick index (R2) (0.533) was recorded in October and minimum (0.383) in April (Table 3).