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Blue-green algae (Cyanobacteria) blooming in polluted water. Photosynthetic bacteria organisms grow in rivers or lakes. A close-up.
Backgrounds
Green algae covered rocks, Yalong Bay, Sanya City, South China
The Haystack Rock. a monolith, is the third-tallest intertidal structure in the world. The tidal pools around are home of many intertidal animals.
Seabed with sand, shells and algae under small waves with light reflections as background
transparent waters sea
Roots and wood rotting on edge of shore of water
Seaweed and sand on North Sea coastline
Dirty and polluted water surface
A close-up of the texture of sand on a summer beach,
playing with the animals
Bladderwrack or rockweed on the stony beach at Hvalsey Beach outside Qaqortoq - Julianehåb on a sunny summers day
Blue-green algae, Cyanobacteria also known as Cyanophyta. Blossoming bacteria plant time in summer in Baltic Sea by 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. 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.
Green algae covered boulders at sea coast beach. Background and surface texture. Sea algae or Green moss stuck on stone. Rocks covered with green seaweed in sea water.
Green algae in see
Structures visisble at low tide as backgrounds
Coastal scenery of Tangshan, China
Aerial view of vibrant green algae in water, creating an interesting texture and pattern. Nature's beauty and complexity on display.
Thermophilic Microbial Mat at Norris Geyser Basin in Yellowstone National Park, Wyoming. These olive-green mats are the result of cyanobacteria mixed with iron.
Algae at a beach of the Baltic Sea
The wind blows across the river surface, causing different ripples, and the silt at the bottom of the river can be seen through the river water
Transparent water in the river and sandy shore in the morning. Natural background. Background for design.
Chalan Kanoa, Saipan, Northern Mariana Islands: Rippled shallow sea water surface background with golden sand sea bottom - beach on the  west coast (Philippine Sea, Pacific Ocean).
in a  sandy beach there are algae and stones in the middle of the sand
Sea water on the coast of Guinea Bissau
View of the water on the sunny day. Copy space. Natural background.
Texture of the seaweed in the piers wall of the southern coast of UK England
Abstract blured macro shoot of sea weed on low tide - background
Pollution by flowering green algae. Eutrophic water
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