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Green Algae

Eutrophication of the Khadzhibey estuary, blooms in the water of the blue-green algae Microcystis aeruginosa and the mass development of the green algae Enteromorpha sp.

Ranunculus aquatilis, common water-crowfoot, white water-crowfoot in the river Semois, Semoy, Sesbach, Ardennes, Wallonia

Algae grows in large quantities.

green river water caused by microalgae growth. microorganisms in a pond in summer give the water a green color. The surface of green water. Tropical green water textures.

Green algae pollution on a water surface

Textured Beautiful view of pond in city park. Muddy green water, plants and reflection of trees in lake. Background of muddy water with lake algae close-up.

The textures of aquatic plan growth in an outdoor pond.

The river during the dawn in autumn , the waves on the river during the sunrise of the sun in the autumn season

Green Algae Goo Sludge on Pond Surface Detail - Detail of organic material with vibrant green colors.

Water flowing over weed and stones in shallow river.

Swamp by the stream

Lake muddy bottom in time of drought and water depletion.

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

The rapid flow of a shallow river overgrown with algae and silt. Algae pattern and texture

Algae bloom on the Havel River, Brandenburg-State

abandoned, pool, stone, empty

Fish in clear lake

Ranunculus aquatilis, common water-crowfoot, white water-crowfoot in the river Semois, Semoy, Sesbach, Ardennes, Wallonia

Tuzlata lake near Balchik town in Bulgaria.

Boat lift at the hydroelectric power station on river Thaya (Dyje) in Znojmo,South Moravian Region,Czech Republic,Europe

Summer landscape

Algae bloom in the river. Water with green algae on the shore. Ecological problems

Slate bridge by the stream

The National Park Thayatal guarantees, together with the Czech Národni park Podyjí the conservation of one of the most beautiful, romantic and biodiversity rich valley landscapes. There are not many places where such a diversity of flora and fauna can be found in a close space as here at the Thaya. Nature has the absolute priority. Retz and Hardegg in Austria and Znaim (Znoijmo) in the Czech Republic are located at the borders of the park.

River water in sunny days

Aerial view of Kopaki rit in spring before the floods, Croatia

Environmental pollution

Vegetation formed in the bed of the river Najerilla in Najera, La Rioja, Spain

Flooding of a river in Lombardy

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