The use of flow cytometric cell sorting is a powerful tool for the selection of microalgae with the desired phenotypes for feedstock production. Flow cytometry combined with single-cell sorting is a high-throughput technique for screening and isolating microalgae from heterogeneous assemblages. Based on the developed protocols for FSC (indication of cell size) vs. red fluorescence (indication of CAF) or red fluorescence vs. green fluorescence, a total of 96 strains of microalgae were isolated from the five marine sample locations (see Table 1). As seen in Fig. 2, R1 is a group of microalgae which attained weak red and green fluorescence while group R2 had higher red and green fluorescence.