Ключевые слова: abstract, alga cover, algae, aquatic, background, biology, bloom, bog, botany, bright, detail, dirty, duck, duckweed, ecology, environment, environmental, floating, flora, foliage, freshwater, grass, green, growth, lake, leaf, marsh, natural, nature, organic, outdoor, overgrown, park, pattern, plankton, plant, pond, pool, river, season, seaweed, spring, summer, surface, swamp, texture, water, weed, wetland,