The isolated microalgae strains were screened to identify those which grew most rapidly and accumulated the highest biomass and intracellular lipid. The isolated strains were scaled-up from colonies grown in the microplates to 5 mL in culture flasks to be used as stock solutions for further characterization. Motile strains and flagellate microalgae were cultivated in Walne medium, where the rest of isolated strains were grown in f/2 medium. All cultures were maintained in a photoincubator at