Ключевые слова: acipenser, acipenseridae, acipenseriformes, actinopterygii, animal, aquarium, aquatic, atlantic, background, baltic, beluga, black, blue, caviar, closeup, common, critically, deep, dive, edible, endangered, endemic, europe, fauna, fish, food, fresh water, isolate, life, natural, naturally, navy, ocean, one, scuba, sea, seafood, studio, sturgeon, swim, underwater, water, white, wild, wildlife,