Osetra Caviar
Osetra is a prized caviar variety that is harvested from the Russian osetra sturgeon (Acipenser gueldenstaedtii). Osetra is native to the Caspian Sea, the Black Sea, and the Sea of Azov, including their river basins. Since it is a critically endangered species, it is rarely found or caught wild, and caviar is mostly harvested from farmed varieties.