Sevruga caviar as saltier, but it can vary depending on the origin of the fish. The caviar is packaged and sold in red tins. A rare type of caviar known as Imperial Caviar, from the Sterlet sturgeon (Acipenser ruthenus), a now nearly extinct species of sturgeon from the Caspian Sea, is sometimes incorrectly labeled as Sevruga, as well as the even rarer Golden Caviar from the albino Sterlet, the caviar being yellow in color. “Pressed sevruga caviar” can also be found, made of a blend of Osetra and Sevruga caviar that has been heated in a saline solution. Sevruga caviar Sevruga caviar
USS Sterlet (SS-392) in reserve on 18 September 1948 and berthed at Mare Island, California. Just under two years later, on 7 August 1950, "Sterlet" was ordered reactivated. She was recommissioned at Mare Island on 26 August 1950 with Lieutenant Commander George W. Kittredge in command. On 25 September, she headed for San Diego where she conducted a month of training. In December, she shifted to Long Beach, California, where she became one of the stars in the motion picture "Submarine Command" with William Holden and William Bendix. "Sterlet" resumed operations along the West Coast early in 1951 and that employment continued until