The coeanography section is where the Data Center is located . The Section undertakes studies in Biological (Plankton and Icthioplankton Studies), Chemical (Nutrients analysis, Oxygen) and Physical oceanography (Temperature, Salinity, turbidity and Colour, Current and Wind direction and speed). In studying all these, samples are collected from the Divisions, reference hydrographic transect off Tema at sea. Also daily records of Temperature and Salinity are taken at the divisions eight (8) Coastal Stations along the entire coast of Ghana ( fig.1). The daily records of temperature taken allows the study of Upwelling and Upwelling Indices (its Intensity and Duration)

From these studies, the hydrography and plankton of the Ghanaian marine coastal environment have been described. Four seasons have been identified, namely a short cold season in December - January (minor upwelling), a long warm season between February and June, a long cold season between July and September (major upwelling) and short warm season in October – November. The environmental condition support a number of commercially important pelagic and demersal fish species.During the upweling periods where temperatures are minimal( below 26C) and salinity is maximal(above 35‰), biological producions including fish and plankton increase. Good upwelling index (above 15) also increase biological production

Studies have shown that there is consistent increase in temperature and decrease in salinity which is no very good for the sardinella fishery in particular.The warming could be attributed to global waring and climatic change

 
Fig.1 Coatsal observation for daily Temperature and salinity. Red line is the Division's transect off Tema