The present study deals with the composition
and abundance of Rotifera in a tropical lake of Belgaum city. Rotifera (14
species) comprised dominant component of zooplankton of highly polluted lake.
This group formed 52.38 and 54.6 percent of total zooplankton number during 1998
and 1999 respectively. Maximum population density was recorded during summer and
minimum in monsoon in both the years of study period.
Brachionus
(four species) constituted dominant genus. This was followed by Keratella
(two species), Filinia, Asplanchna, Polyarthra, Trichocera
as sub-dominant genera. Other two genera Ascomorpha
and Anuraepsis found in very low
numbers in the lake. The possible reasons for their fluctuations in physico-chemical
factors of the lake have been discussed.
Address: 1K.L.E. Society's R.L. Science Institute
College Road, Belgaum.
271, Shantaray Nilay C.B. Nagar, Dharwad - 07
Ph: 0836-773874 E-mail: dr-hspatil@rediffmail.com
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