It is found in the Caspian Sea and to a lesser extent the Black Sea and ascends certain rivers to spawn, mainly the Volga, Kura, Araks and Ural Rivers. It is heavily fished for its flesh and its roe and is limited in its up-river migrations by damming of the rivers.
It is discovered in the Caspian Sea and to a lesser extent the Black Sea, and ascends specific rivers to spawn, primarily the Volga, Kura, Araks, and Ural Rivers. It is heavily fished for its flesh and roe, and its movements are restricted upstream by damming of the rivers.