*Color Detection*

measure quantitatively the efficiency of energy transfer from one set of pigments to another [26]. Moreover, different species of cyanobacteria contain different accessory pigment-proteins and specific linker-proteins between them, therefore a set of fluorescence emission spectra excited by different wavelengths have its own unique shape for the cells of one strain and are quite distinguishable from other species and strains. Such sets of fluorescence emission spectra can be used for automatic differentiation of cyanobacterial species.
