Cyanobacteria or "blue-green" algae, which develop at the surface of a slow flow river, in the Summer (Puy-de-Dôme - France).
Cyanobacteria at the surface of a slow flow river, in the Summer (Puy-de-Dôme - Auvergne - France). Those "blue-green" algae are not actually true algae; they grow when shallow water is rich in nutrients (nitrogen and phosphorus). Cyanobactéries (Cyanobacteria) à la surface d'une rivière à faible débit, en été (Puy-de-Dôme 63 - Auvergne - France).
Size: 5620px × 3747px
Location: France
Photo credit: © Emmanuel LATTES / Alamy / Afripics
License: Licensed
Model Released: No
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