EN
The survival and growth rate of Atlantic sturgeon, Acipenser oxyrhynchus oxyrhynchus Mitchill, eggs and fry were tested in recirculation systems on rocky and gravel substrates. The observations were carried out until the beginning of exogenous feeding. In comparison to standard methods of egg incubation and fry rearing, survival was lower and growth rates were higher. At the end of the experiment, the average body length of larvae was higher in both substrate groups and lower in the control group.