ZAIGHAM HASAN, ABID SUHAIL, MUNEER AHMAD KHAN, ZULFIQAR ALI, SHAHJI GUL
Abstract: This paper illustrates some important pysico-chemical parameters of Darwazai Dam, Lachi, District Kohat, Khyber Pakhtunkhwa, Pakistan to determine its suitability for developing aquaculture in it. Various limnological parameters were studied from March to June 2011. Mean and standard error of different pysico-chemical parameters was recorded as follows; pH 7.60 Â± 0.00, temperature 27.38 oC Â± 3.14, dissolved oxygen (DO) 7.00 Â± 0.00 mg/ L, total dissolved solids (TDS) 679.3 Â± 92.31 mg/L, conductivity 1110 Â± 165 Âµs/ cm, hardness 123.5Â± 25.5 mg/L, calcium 69.0Â± 13.8 mg/L, chloride 28.43 Â± 4.50 mg/L, alkalinity 131.0 Â± 5.87 mg/L, nitrate 0.42 Â± 0.14 mg/L, bromine 0.42 Â± 0.14 mg/L, Iron 0.3 Â± 0.02 mg/L, magnesium 59.0 Â± 12.9 mg/L and visibility of sacchi disk was 30.75Â±0.43cm. The study concludes that all parameters studied are in the optimum range, which could support a large diversity of warm water fishes for developing aquaculture activities in the dam.