Reduce filamentous algae growth

Filamentous green algae (Chlorophyceae) are macroscopic plants typically attached to rocks, bottom sediments, dock pilings, etc., though some forms (e.g., Spirogyra) can remain suspended in the water column. Like all plants, filamentous algae release oxygen as part of the photosynthetic process. Oxygen produced by filamentous algae growing on soft, mucky sediments will often cause these algae to lift off the bottom to form thick algal mats floating on the pond surface due to bubbles trapped in the algal matrix. Although not visually appealing, these filamentous algae are completely different from blue-green algae in that filamentous green algae not toxic, are eaten by fish and waterfowl, and do not produce noxious odors.

We have seen significant reductions in filamentous algae in many SolarBee ponds, with typically greater reductions in the second and subsequent years. The underlying mechanism is hypothesized to be due to continual oxidation of near-shore sediments with the return flow of oxygen-rich water back to the SolarBee. This enhanced sediment oxidation promotes sediment compaction, reducing nutrient availability from interstitial pore water and giving the algae a firmer substrate, thus making it more difficult for the attached algae to dislodge from the bottom and float to the surface. With improved water clarity with blue-green algae control, occasionally filamentous algae will actually increase during the first summer, followed by significant reductions in subsequent years. Nevertheless, in the over 300 water bodies where SolarBees are installed, we have not seen filamentous algae become prominent where it had not previously been.

Reduce Invasive weed growth

Improve fish habitats

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