Dissolved organic matter in coastal waters at Jeddah,Saudi Arabia

Water samples collected during April 1982–April 1983 from Red Sea coastal waters at Jeddah, Saudi Arabia, were investigated for dissolved organic carbon, dissolved organic nitrogen, dissolved lipid, dissolved organic phosphorus, dissolved monosaccharides, total dissolved sugars and dissolved polysaccharides. All showed extremely high values at two stations. This can be attributed to the direct effect of untreated wastes on these two locations and the limited water exchange between the study area and the open sea.