Threatened species of Huso huso

The beluga is the largest sturgeon and the only predator in the family. It is so rare that the annual beluga catch does not exceed 100 units. The beluga is strong, vigorous, large-mouthed, and nomadic, following its prey, shoals of whitefish. Beluga caviar, the largest, is light to dark gray. It is highly valued for its large granules (coarse roe) and delicate skin.