2.0 Materials and Methods:
2.1 Study area: Mysore district lies between 110
39’ and 120
50’ north latitude and 750
45’ and
770
45’ east longitude. It is situated in the southern
part of Deccan Peninsula and it forms the southern
district of Karnataka State. Irrigation by channels is
the characteristic feature of the district. Many
lakes which are fed by the river Cauvery and its
tributaries form the major wetlands of the district.
Additionally rains fed freshwaters are also
abundant.(Fig.1)
2.2 Sampling stations: Sampling for algae was
done from 20 lakes which are situated at a
distance of 20 kms apart. They differ in size and
shape, in the nature of aquatic life, usage and level
of human disturbance. Some of them become
occasionally dry but are again refilled by channels.