Ключевые слова: abstract, algae, aqua, aquatic, background, below, beneath, blue, bottom, clear, deep, diving, ecosystem, environment, fish, flora, grass, green, habitat, kelp, lake, landscape, lawn, life, light, marine, mediterranean, nature, ocean, plant, reef, river, scene, sea, seagrass, seascape, seaweed, shallow, summer, sun, sunbeam, sunlight, sunshine, surface, tropical, under, undersea, underwater, water, weed,