Waves at California beaches glow with bioluminescent algae at night
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Beachgoers were treated to the site of the shores of Long Beach, California, glowing with bioluminescent waves on the night of Dec. 28 due to the effects of red tide caused by algae.
Jan. 5 (UPI) -- An unusual type of algae is coming close to shore in California, leading to a phenomenon known as bioluminescent -- or glowing -- waves.
Visitors to Orange County beaches this week reported spotting the glowing blue waves in multiple locations during nighttime hours, and charter boat services have been offering special after dark tours of the illuminated waters.
The phenomenon is caused by an algae known as lingulodinium polydra, which is known for its bioluminescence, or natural glowing, when it reacts to being moved by the water.
The glowing waves correspond with the red tide, an algae bloom that can cause the waters to appear red, brown or orange during the day due to the presence of the algae.
"It's the same type of organism when you have a red tide, which gives the water kind of an orangish brown, red kind of tint when they are in high density during the day," Nate Jaros, senior director of fish and invertebrates at the Aquarium of the Pacific told KTLA-TV. "But at night when disturbed, they produce bioluminescence. So, when there's a lot of agitation in the surf, it can activate that bioluminescence which makes the waves appear to be glowing."
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