The species index indicated that
Doddakere Lake, Kabini Lake, Kalale lake, Kurubara lake, Hadhinaru Lake and Bogadi lake had low organic
pollution. The diatom index showed that all lakes ranged between moderate and high organic pollution, but
the degradation levels in the water were always high. Dadadahalli Lake has the highest organic pollution
while Kalale Lake and Makanahally Lake were heavily polluted.