The example of cultivation of two species of cyanobacteria (CB) Nostoc paludosum and Fischerella muscicola showed that manipulating the level of illumination and the composition of the nutrient medium can cause a significant increase in the yield of cyanobacterial biomass. Transition to cultivation from a luminostate with illumination of 1000 lux to cultivation in a bioreactor with illumination of 4000 lux raises reproduction rate of the CB by 1.8 times for N. paludosum and by...