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http://www.bbc.com/news/video_and_a...ide-electric-blue-waves-wash-california-shore
A dazzling neon blue tide in San Diego, California, has filled its beaches with electric aqua colours.
By day the plankton turn the water red, but come nightfall they radiate a blue glow when the algae are disturbed by movement, such as waves crashing on to the shoreline.
Bioluminescent light shows are not uncommon globally, but the last red tide in San Diego was in 2013 - and it's no less beautiful each time they grace the oceans.
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Red tides may be pretty but some of these phytoplankton contain shell fish toxins that are consumed by clams, oysters, lobsters, etc. I've had food poisoning once (airline chicken not properly cleaned/cooked) & it was nothing compared to a severe case of shellfish poisoning I had from eating a boiled lobster lunch.
Marine bioluminesence is pretty common apart from red tides. I vacationed once in the FL Keys & at night the shallow ocean by the shore was alight with beautiful, brightly glowing creatures.
A dazzling neon blue tide in San Diego, California, has filled its beaches with electric aqua colours.
By day the plankton turn the water red, but come nightfall they radiate a blue glow when the algae are disturbed by movement, such as waves crashing on to the shoreline.
Bioluminescent light shows are not uncommon globally, but the last red tide in San Diego was in 2013 - and it's no less beautiful each time they grace the oceans.
=====================================
Red tides may be pretty but some of these phytoplankton contain shell fish toxins that are consumed by clams, oysters, lobsters, etc. I've had food poisoning once (airline chicken not properly cleaned/cooked) & it was nothing compared to a severe case of shellfish poisoning I had from eating a boiled lobster lunch.
Marine bioluminesence is pretty common apart from red tides. I vacationed once in the FL Keys & at night the shallow ocean by the shore was alight with beautiful, brightly glowing creatures.