One of the largest forms of trout. Habitat - the Caspian Sea basin. Prefers water with high oxygen content. The main food of young Caspian brown trout are crustaceans, aquatic and airborne insects and their larvae. Adults feed on fish. Bodywise, Caspian brown trout are closer to salmon. The color of the body is silver, the back is dark. The sides and head of the Caspian brown trout are covered with dark gray specks. The average weight of an adult individual is about 10 kg with a body length of up to 130 cm