Glittering Tides: Where to Spot Bioluminescence in the Bay Area | KQED
Briefly

Different forms of luciferin can produce different colors of light. Fireflies, for example, emit green light, whereas marine organisms like the dinoflagellates found around the shores of the San Francisco Bay emit blue light.
A rainy or windy day followed by a calm day can kick off the sequence of events leading to a bloom. Rainy days will bring nutrients like phosphate and nitrate into the sea.
For the best visibility, catch the bioluminescence on a moonless night or a night with minimal light pollution to fully experience the beauty of this natural phenomenon.
The mixing of deeper water, which has more nutrients, up to the surface is essential for bioluminescence to occur, as explained by aquatic biologist Haddock.
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