STUDY ON WATER CHARACTERISTICS FOR NETWORK ANALYSIS IN A POND.

Despite the continuous decrease in water table, pond water is a good medium for the aquatic organisms to survive. Water quality parameters were analysed and estimated seasonally. Range of different parameters was found as PH-7-8, Temperature- 180c ? 320c, Electrical Conductivity ? 300 ? 410 ms/cm, Transparency ? 16.6 ? 31 cm, D.O ? 4.5 ? 7.9 mg/l, B.O.D. ? 4.6 ? 6.5 mg/l, Ca ? 48.01 -104.08 mg/l, Mg ? 196.4 ? 245.3 mg/l, Phosphate ? 0.5 ? 1, Nitrates ? 0 ? 1 mg/l, Total hardness ? 200 ? 252 mg/l, TDS ?220 ? 260 mg/l, Turbidity ? 25 - 40 NTU, Chlorine content ? 17.4 ? 56.8 mg/l. In combination with biomass estimation of the organism of different trophic levels, these parameters are to be employed for network analysis of the pond by applying EWE ( Ecopath with Ecosim Version 6.5)