Ossetra genitive case form "осетра" (osetra, 'of sturgeon') of the Russian word "осётр" (osyotr 'sturgeon') from the phrase "икра осетра" (ikra osetra, 'caviar of sturgeon'). At one time, the term "ossetra" simply referred to Russian sturgeon species harvested for this type of caviar. In Russian, there are different names for the species of sturgeon that live in various territories such as "Beluga" ("Huso huso"), Sevruga ("Acipenser stellatus") and Sterlet ("Acipenser ruthenus"). The name Ossetra corresponds to the species "Acipenser gueldenstaedtii", which is much smaller than Beluga sturgeon ("Huso huso"), and has a firmer texture. In the territory of the Russian Federation
USS Sterlet (SS-392) patrol was given over to lifeguard duty for the crews of carrier planes and B-29 Superfortresses attacking Japan. "Sterlet" rescued a New Zealander and a Briton, one was near the Kii Channel between Shikoku and Honshu. When Japanese capitulation brought an end to the patrol, "Sterlet" returned to Midway on 23 August. On 6 September, she sailed for the United States entering reaching San Diego Naval Base ten days later. "Sterlet" remained on the West Coast until the end of February 1946, at San Diego until 13 November and at San Francisco, California, thereafter. On 26 February 1946, she started