> Many times when I see floating algae it is actually mats or rafts that have
> floated up from the algae that grows on the bottom. It seems that after we
> have a long stretch of warm sunny weather, the algae is photosynthesizing
> like crazy and the O2 gets trapped and lifts a raft to the surface. When
> it rains, the O2 is expelled and it sinks back to the bottom and decays.
For sometime I have been suspicious that the drastic change in barometric
pressure which usually accompanies a strong rain is the culprit in raising
algae mats. Is that possible?
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