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) escort. The setup was hasty at best. All four missed, and she prudently opened range to reload and prepare for another attack on the damaged freighter still afloat. As she approached, her quarry was dead in the water, down by the stern, and partially enveloped by smoke. Two of the escorts were thrashing about the surrounding waters, indiscriminately shooting and dropping depth charges. At 22:35, one of them passed between "Sterlet" and her victim. The submarine shifted her sights on him and, four minutes later, sent three torpedoes streaking at him. The frigate sighted the wakes, immediately turned into them,