%0 Journal Article %T Limnological Studies of Keenjhar Lake, District, Thatta, Sindh, Pakistan. %A K. H. Lashari %A %A and %A A. L. Korai %A G. A. Sahato %A T. G. Kazi %J Pakistan Journal of Analytical and Environmental Chemistry %D 2009 %I University of Sindh %X Limnological studies of Keenjhar Lake were carried out during January 2003 to December 2005. The present study deals with physico - chemical parameters such as, temperature, pH, alkalinity, chlorides, conductivity, total dissolve solids, turbidity, dissolve oxygen, calcium and magnesium. The maximum and minimum range of physico - chemical properties were as, temperature 18 - 33 C from station 2 in January and August respectively, pH 7.3 - 8.9 in September and June respectively, alkalinity 160 - 240 mg L-1 in July and January respectively, minimum chlorides 30 mg L-1 in September and maximum 85 mg L-1 in December, conductivity 320 S cm-1 in September and 496 S cm-1 in December, total dissolve solids were 240 mg L-1 in September and 391 mg L-1 in October, turbidity was 30 NTU in December and 78 NTU in May, dissolve oxygen was 7.0 mg L-1 in January and 9.0 mg L-1 in July, calcium 50 mg L-1 in July and September and 78 mg L-1 in October, magnesium 21 mg L-1 in August and September, 35 mg L-1 June, and it is concluded that the variation in parameters were due to rain and flow of River Indus. %K Physico - chemical properties %K Keenjhar Lake %K Thatta %U http://www.ceacsu.edu.pk/PDF%20file/Volume%2010%20Issue%201%20&%202/39-47-PJAEC-150709-06-OK.pdf