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Blue-green algae (Cyanobacteria) blooming in polluted water. Photosynthetic bacteria organisms grow in rivers or lakes. A close-up.
The Danube Bend
Roots and wood rotting on edge of shore of water
Watercourse
Abstract textured background with wavy patterns in shades of green and gold, creating a serene natural atmosphere.
A natural close-up view of shallow clear waters showcasing brown and green algae with unique sand patterns beneath. The sunlight casts reflections adding visual texture and depth to the aquatic ecosystem scene.
Golden sand on the beach by the lake, forest in the background. Summer vacation by the lake
transparent waters sea
The bank of the Berezina river, quiet waves, sand,view of the bottom with shells. High quality photo
Seaweed and sand on North Sea coastline
Photograph of the problem that sargassum represents on the coast of Cancun, a tourist destination in the Mexican Caribbean
Backgrounds
Seabed with sand, shells and algae under small waves with light reflections as background
Wet sand at the beach. With copy space. Shot with a 35-mm full-frame 61MP Sony A7R IV.
Floating sea lettuce in clear ocean water near Zanzibar beach
Peruvian Vale, Charlotte Parish, St Vincent, Saint Vincent and the Grenadines: there is significant sargassum seaweed problem along the coastline of Saint Vincent. Sargassum, a brown macroalgae, often accumulates in large quantities on the beaches, creating an unsightly and disruptive environmental challenge for the island. This environmental issue can create unpleasant odors, impede beach access, and potentially impact marine ecosystems and local industries like tourism and fishing.
Dirty and polluted water surface
The Haystack Rock. a monolith, is the third-tallest intertidal structure in the world. The tidal pools around are home of many intertidal animals.
texture of waves in a Baltic sea beach sand
Green algae in see
a close-up view of a sandy beach floor, scattered with patches of green seaweed or algae. The fine grains of sand are interspersed with small pebbles, creating a textured surface as wallpaper
Water texture
Close-up of the water in Ha Pak Nai, Yuen Long, Hong Kong. Wave and water pattern. Travel and nature scene.  Coastline.
green ocean plumage underwater
Ulva lactuca or sea lettuce seaweed over sand. Zambujeira do Mar, Portugal
Sand graphics for background made by small waves on coast of  Arabic sea in Oman.
playing with the animals
Peruvian Vale, Charlotte Parish, St Vincent, Saint Vincent and the Grenadines: there is significant sargassum seaweed problem along the coastline of Saint Vincent. Sargassum, a brown macroalgae, often accumulates in large quantities on the beaches, creating an unsightly and disruptive environmental challenge for the island. The seaweed forms a distinct orange-brown band along the shore. This environmental issue can create unpleasant odors, impede beach access, and potentially impact marine ecosystems and local industries like tourism and fishing.
Texture background of natural sand at the beach in France
Bladderwrack or rockweed on the stony beach at Hvalsey Beach outside Qaqortoq - Julianehåb on a sunny summers day
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