Quote:
Originally Posted by ApS
Your neighbor may be referring to the precursor to cyanobacteria "poisonous blue-green algae blooms", which are the gloeotrichia. Those are the tiny gray dots that come within easy view of the surface on warm and windless days In late summer.
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Just to be clear, gloeotrichia sighting is not a pre-cursor to a blue-green algae bloom. It is it’s own very special variety of Cyanobacteria which in very high concentrations forms a yellowish scum, but otherwise looks like tiny yellow/gray dots suspended at various levels under the water.
The Cyanobacteria spotted at Bear earlier this summer was not gloeotrichia, if I recall correctly, it was one of the more distinctly green varieties.
Sighting map here:
https://www.winnipesaukee.org/weekly...oom-watch-map/
Images of Cyanobacteria here:
https://www.winnipesaukee.org/wp-con...ance_FINAL.pdf