author(s)
Kishor C, Ramachandra Naik AT, Shivakumar M, Anjanayappa HN, Mansingh Naik, Manjulesh Pai, Appu Jadhav, Praveenjoshi HS and Shaik Umme Salma

abstract
The site characteristics include present land use, vegetation and land topography of the fish ponds were investigated based on visual field observation. Physico-chemical and biological characteristics of water from selected aquaculture ponds were assessed. The results showed variation in different water quality parameters. The water temperature ranged from 24.30 to 32.10 ^oC, pH from 5.60 to 9.35, Transparency from 7.1 to 30.40 cm, Dissolved oxygen from 3.1 to 11.34 mg/l, Alkalinity from 24 to 166 mg/l, Carbon dioxide from 1.11 to 13.74mg/l, Ammonia-nitrogen from 0.29 to 18.65 µg at./l and Phosphate-phosphorus from 0.21 to 5.34 µg at. /l. All the parameters were found within the optimum range recommended for fish culture.