Значение естественного нереста и искусственного осетроводства в формировании запасов осетровых Каспийского моря

At the work on the basis of empirical data on the number of generations 1959-1987of Beluga (Huso, hoso L), sturgeon (Acipenser gueldenstaedtii Brand), stellate sturgeon (Acipenser stellatus Pallas), the coefficient of yield to the fishey of young fishes, which were cultivated at the fishery plants of Russia, was calculated. You can see the analysis of scales of natural spawning of sturgeon. Determined the proportions of fish from natural and artificial origin: Beluga, Russian sturgeon, stellate sturgeon. This work shoes recommendations for conservation and restoration of sturgeon populations in the Caspian Sea.