The article was written on the basis of the results of the research conducted by the staff scientists of Limnological Institute of Siberian Branch of the Russian Academy of Sciences and Baikal State University. The aim was to define ecological and economic viability of planting of prospective autochthonous aquatic species including Baikal omul Coregonus migratorius in Maloye More fishing area. The process of fish planting is considered in the light of the need for satisfying the demand for omul both among the local population and tourists visiting Maloye More. The authors give a brief analysis of the demand for fish among the above mentioned categories. On the basis of calculations, a conclusion is drawn that it is impossible to satisfy the need for omul among the population of Maloye More and tourists visiting the area, whose number is growing fast, solely by means of natural propagation. Thus, the authors made an economic assessment of viability of measures aimed at stocking Maloye More fishing area with fish. These measures include acquisition of juvenile omul and its transportation from fish-breeding farms in Irkutsk Region and the Republic of Buryatia and also construction of a fish-breeding farm in Maloye More fishing area.