Sevruga caviar Sevruga caviar Sevruga caviar is one of the highest priced varieties of caviar, eclipsed in cost only by the Beluga and Ossetra varieties. It is harvested from a variety of critically endangered sturgeon fish species, that are known for their small, grey colored eggs. In eastern Europe, it is harvested from the Sevruga sturgeon ("Acipenser stellatus"), the Sterlet sturgeon (Acipenser ruthenus) and the Siberian sturgeon ("Acipenser baerii"), which are native to the Caspian Sea and the surrounding rivers. Sevruga is the smallest of the caviar-producing sturgeons. It can grow as far as 150 lbs. in weight and 7 feet in
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,