Due to the ban on the catch of sturgeon from natural reservoirs, Lemberg's black caviar comes mainly from sturgeon farms in Europe. The properties of caviar derived from aquaculture-grown sturgeon fish are the same as caviar taken from fish from a natural source. Mainly Siberian (Acipenser Baerii) and Russian (Acipenser gueldenstaedtii) sturgeons are grown in aquaculture. The only type of sturgeon allowed for fishing is the American sturgeon (Polyodon Spathula). American sturgeon caviar comes from the fishing regions of the Mississippi River, USA.