Preview Sterlet, sturgeon, Acipenser ruthenus, Romania, Volga river, Black Sea Image ID: 759-1616 Artist: Reinhard Dirscherl Purchase a commercial license Buy framed prints & more from our print store freshwater fishes fish fishes freshwater river caviar endangered sea sturgeon acipenser sp lake fresh water nature wildlife close up fish endangered species caviar freshwater fishes seawater fishes no model release querformat horizontal format underwater image photo scuba diving