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Present study describes for the first time some hydrographic features (temperature, salinity, dissolved oxygen and pH) and their seasonal variations in Korangi-Phitti Creeks based on data collected during 1999-2001. Results showed that surface water temperature generally varied from 25-34°C during summer months (March–October), 19-27°C during winter months (November–February). Low temperature 19°C was recorded in the month of February 1999 at Port Qasim. Higher surface water temperature 34°C was recorded in May 2000 at Korangi Creek and in September 2001 at Port Qasim. In general high atmospheric temperature correspond with the high surface water temperature however at some stations during low tides the surface water temperature was slightly higher than the atmospheric temperature. Salinity in the Korangi creek ranged from 34‰-45‰ with maximum 45‰ at Port Qasim area during the SW monsoon in the month of September 2000. Lowest salinity 34‰ was observed at Port Qasim in the transitional period (April). Dissolved oxygen ranged from 2.2 mg/l to 10.75 mg/l with minimum of 2.2 mg/l in the month of February 2001 at Port Qasim during the NE monsoon and maximum 10.75 mg/l in the month of February 2000 during the NE monsoon.
Zakia Khatoon, S. Makhdoom Hussain. (2006) SOME HYDROGRAPHIC FEATURES OF KORANGI-PHITTI CREEK , , Volume 3, Issue 4.
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