Ossetra dwells another type of sturgeon, Siberian sturgeon ("Acipenser Baerii"), which is farmed all over the world because it can adapt to a wider range of habitats. It begins to produce caviar faster than "Acipenser gueldenstaedtii". Throughout the entire history of black caviar consumption, reference to Ossetra was made only to the fish that was caught first in Imperial Russia, then the USSR, and now in the Russian Federation. Today, Caspian Ossetra is facing extinction in its native habitat. Farming sturgeon is the only way to continue the production of high-quality caviar. Continuous drastic declines in natural sturgeon populations over the
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