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) 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