Seasonal Changes in Water Quality Parameters of Malidevi Estuary (Nellore) East Coast Of Andhra Pradesh, India

From January 2016 to December 2016 the investigation was conducted in Malidevi estuary. Transparency values ranged from 0.58±0.21 to0.97±0.21. Mean values of pH was varied from 7.2±0.20 to 9.2±0.32. Atmospheric temperature varied from 25.8±1.17 °C to 32.9±1.07 °C. Surface water values ranged from 24.7±2.01 °C to 31.9±0.92 °C. Salinity of Malidevi estuary varied from 19.33±0.76 to 34.68±1.00 (‰). Dissolved oxygen was ranged from 3.31±0.26 to 7.92±0.54 mg/l. The rainfall was varied between 0.21±0.01 to 194.4±0.86 mm.