The moment of a plankton bloom - the root of our essential food chain
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The moment of a plankton bloom - the root of our essential food chain

by John Bruun, University of Exeter, Exeter, United Kingdom of Great Britain and Northern Ireland

I saw this on day when we were about to swim: the sea had turned green-yellow!
This is photosynthesis in action and the base of much of our food chain.
It's not so obvious sometimes to see this remarkable phenomena and this was special: clearly a plankton bloom had just ocurred. A few days before the sea was much clearer.