Assessment of Month-Wise Variations in the Physico-chemical Parameters of Kori Lake, District Thatta, Sindh, Pakistan

Abstract

This study was conducted from November 2020 to October 2021 to monitor the monthly variability of physicochemical parameters in Lake Kori, Thatta Sindh Province, Pakistan. Four sampling sites were selected, namely Joryo Wadero Goth, Alano Palejo Goth, Mallah Goth. and Ismail Agheem Goth for analysis, Samples of lake water were collected fortnightly in plastic bottles, mainly from parameters such as temperature, pH, conductivity, TDS, salinity was enumerated by digital multipara meter on site, while dissolved oxygen content was detected by laboratory titration method. The temperature was found to be ranged between 20.0- 33.16°C, pH varied 8.15-8.71, conductivity was 921.75- 1117.5 µs/cm, total dissolved solids from 566.75-643.37 mg/L, salinity was 0.5-0.6 ppt and dissolved oxygen was from 4.0-5.8 mg/L. Slight variation among the parameters were also noted during summer and winter seasons and sampling sites. It was concluded that the lake environment was found to be conducive for the aquatic biota and stocking of commercial fish species.