Sterlet They may require special food such as sterlet sticks, as they are unable to digest the vegetable proteins usually found in commercial fish foods. In Russia, it is held in high esteem on account of its excellent flesh, contributing also to the best kinds of caviar and isinglass. Sterlet The sterlet ("Acipenser ruthenus") is a relatively small species of sturgeon from Eurasia native to large rivers that flow into the Black Sea, Azov Sea, and Caspian Sea, as well as rivers in Siberia as far east as Yenisei. Populations migrating between fresh and salt water (anadromous) have been extirpated. Due
USS Sterlet (SS-392) the lookouts sighted smoke; and, by 21:53, the submarine was in position to launch a night surface radar attack. She launched six torpedoes, three at each freighter. Two minutes later, one of the escorts peeled off and made for "Sterlet". She immediately went right full rudder, all ahead at flank speed. In another two minutes, two torpedoes plowed into each of the two targets—four explosions within 20 seconds. At 22:05, the enemy frigate began random depth charge attacks. Three minutes later, the smaller of the two targets sank by the stern. At 22:11, "Sterlet" unleashed four "fish" at the pursuing