Khurrum Khalid has completed his MSc in marine fisheries at the age of 23 years From Institute of Marine Science, University of Karachi, Karachi, Sindh, Pakistan.

Hydrographic conditions of seawater play an important role in the marine ecosystem. Today oceans and seas are under tremendous threat and pressures due to an increase in man-made activity around the coastal areas like industrialization. To know the impact of these activities on hydrographic conditions (such as colour, temperature, salinity, pH, dissolved oxygen and biological oxygen demand) in surface seawater and Deep seawater of Gwadar East Bay was studied during the month of September 2017. For this samples were taken from six stations, three stations from each of the surface seawater and deep seawater. The hydrographic parameters of seawater showed considerable tidal variations. On the basis of data, it was concluded that the variations were found between all six stations of both surface seawater and deep seawater. It is also noted that significant correlations were found between temperature, salinity, and dissolved oxygen. Analysis of variance reveals that the results of each parameter were not constant but varied between stations and collection time. The present study reveals that the physic-chemical composition of Gwadar East Bay seawater depends on tidal, depth and discharge of sewage and waste materials from different sources.