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ABSTRACT
A study of the effect of water soluble fraction of refined petroleum products (petrol, kerosene and diesel) on three marine algae namely; Skeletonema sp, Isochrysis sp and Chaetoceros sp was carried out in a laboratory for 14 days. These test algae were grown in seven concentrations of 0%, 5%, 10%, 25%, 50%, 75% and 100% water soluble fraction. The growth response of each of the algae in their different concentrations was measured using a spectrophotometer at a wavelength of 750 nm. Results showed better growth of all test algae at lower concentrations (0% - 10%) of all water soluble fractions used, and suppressed growth at higher concentrations (50% -100%). Growth yield was highest for Chaetoceros sp in all refined petroleum products used. Amongst the test algae Chaetoceros sp and Isochrysis sp. showed better potential and can possibly be used for bioremediation of refined petroleum products.
