Correlation between Physico-chemical Parameters and Phytoplanktons of Tighra Reservoir, Gwalior, Madhya Pradesh

Limnological studies were under taken to understand the correlation between physicochemical parameters and phytoplanktons of the Tighra reservoir, Gwalior, Madhya Pradesh from November 2010 to October 2011.In the present investigation, water temperature ranged from 18.4 C to 35.75 C, transparency ranged from 152.75 cm to 211.5 cm, conductivity from 272.5 μS/cm to 408.5 μS/cm, turbidity from 5.77 NTU to 12.15 NTU, pH from 6.85 to 7.72, DO ranged from 5.425mg/lit to 8.125 mg/lit, free carbon dioxide from 4.15 mg/lit to 7.57 mg/lit, total alkalinity from 53.75 mg/lit to 145.5 mg/lit, total hardness from 66.25 mg/lit to 137 mg/lit, chlorides from 11.85 mg/lit to 39.5 mg/lit, nitrogen from 0.29 mg/lit to 0.61 mg/lit and phosphates from 0.37 mg/lit to 1.57 mg/lit. All four groups of phytoplanktons, bacillariophyceae, chlorophyceae, myxophyceae and euglenophyceae were recorded throughout the study period. Bacillariophyceae was the most dominant of all the groups of phytoplanktons. The study revealed that phytoplanktons had positive relationship with temperature, pH, chloride, alkalinity, hardness and phosphate.