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Blue-green algae (Cyanobacteria) blooming in polluted water. Photosynthetic bacteria organisms grow in rivers or lakes. A close-up.
Close up lake surface.Stock photo.
An algae bloom covers the surface of a pond.
Green Algae
String Algae, ludwigia  and duckweed, weaving in the flow of water in the swamp, Loop Road, Big Cypress National Preserve, Florida
A water bloom floats on a river.
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.
The textures of aquatic plan growth in an outdoor pond.
Blooming green water. Green algae polluted river
Algae bloom on the Havel River, Brandenburg-State
The rapid flow of a shallow river overgrown with algae and silt. Algae pattern and texture
Green Algae Goo Sludge on Pond Surface Detail - Detail of organic material with vibrant green colors.
macro view of the vibrant-green water micro vegetation lying on the water surface of a little drain
Small mere in  Wachirabenchathat Park (Rot Fai Park) in Bangkok
Blooming green water. Green algae polluted river
Pollution by flowering green algae. Eutrophic water
green swamp algae still water lake with gas bubble
aquatic plants
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.
Above view of Algae in river Corrib, Wild Atlantic Way, Galway, Ireland.
Turkey Landscape  Photo
Pond weed and algae on the surface of a stagnant pond in Cambridgeshire.
Water pollution by blooming blue-green algae - Cyanobacteria is world environmental problem. Water bodies, rivers and lakes with harmful algal blooms. Ecology concept of polluted nature.
Close up of algae growing on a pond in the summer
Swamp water in the tank. Lots of green water. Facilities for water purification in the city. Tina in the swamp.
Green Algae Pond Scum - Closeup detail of bright green algae, sticks, mud and rocks detail.
Green plants over the water
Fish in clear lake
Long river algae flooded with clear transparent water of a fast mountain river with a rocky bottom during the autumn flood rushing after the stream forms a unique picture of wild nature
Some interesting vegitation growing around the pond.
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