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They bioluminesce (glow) when disturbed.

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15y ago
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Anonymous

Lvl 1
4y ago

Bloom does not refer to their behaviour when disturbed but to the affect also known as red tide, where and when the right conditions are met they reproduce readily to as much as 50 - 60 million cells per litre turning the water a reddish colour. many dinoflagellates produce toxins so during red tides people that eat fish that ate these dinoflagellates can become seriously ill and die. Dinoflagellates can live for several days or up to a year so often a rare 'red tide' or 'bloom' event will provide several evenings and nights of bioluminescent Coastlines providing the conditions remain optimal for the Dinoflagellates to live.

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Q: What does it mean that dinoflagellates bloom?
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