Ключевые слова: active, animal, aquarium, aquatic, background, behaviour, belica, closeup, cyprinidae, czech republic, delineatus, ecology, europe, eye, eye level, family, fauna, fish, fresh, freshwater, gill, lake, leucaspius, little, looking, low angle, macro, moderlieschen, native, nature, netherlands, ocean, one, river, side view, silvery, small, sunbleak, sweden, underwater, water, wild, wildlife, zoo,