Filamentous Green Algae

Threadlike filamentous green algae growing in the shallows of Copley Retention Dam. These soft strands consist of a chain of cells, giving a thread-like appearance. Oxygen production as a by-product of underwater photosynthesis creates buoyancy, causing the strands to incline toward the surface.

Filamentous green algae from Copley Retention Dam. Magnification 20x.
Oxygen bubbles generated by filamentous green algae.
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