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) of certainty in identification forced the submarine to pass up several inviting targets. To further cloud the issue, Japanese ships probably attempted to disguise themselves as Soviets on several occasions to escape American submarines. "Sterlet", however, managed to emerge victorious over two enemy ships. In the late afternoon of 29 May, she encountered a large and a small freighter, escorted by three patrol frigates. At 16:41, the submarine tried for a good setup, but failed due to the convoy's rapid change in course. She lost sound contact around 1720 and, 40 minutes later surfaced for a daylight end-around. At 1822,