abstract:The Russian sturgeon (Acipenser gueldenstaedtii), also known as the diamond sturgeon or Danube sturgeon, is a species of fish in the Acipenseridae family. It is found in Azerbaijan, Bulgaria, Georgia, Iran, Kazakhstan, Romania, Russia, Turkey, Turkmenistan, and Ukraine.
Russian fishermen on the Volga River catch around 20% of the world's blackcaviar, tearing it outof the bellies of giant sturgeon, a species asoldas the dinosaurs.
By the 1800s Russian aristocrats took to carting live sturgeon with them when they traveled, so the fish could be sliced open and their roe salted and served fresh.