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Sea sparkle

Alexandrium fraterculus

Photo by remco.douma
Published on Project Noah
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-34.9088, -54.824

Field Notes

Description:

Alexandrium fraterculus is a genus of dinoflagellates that exhibit bioluminescence in movement. For several days, the waves around Punta del Este were lit by these microorganisms.

More photos and a video in the link.

Species ID Suggestions

Comments (12)

Thank you Bhagya, Leuba and venusflytrap2000!
Brilliant video. Thanks so much. Video here http://uruguay-foto.com/noctilucas/h40fbc589#h41190a3b
Great series remco.douma,just beautiful,congrats on the Project Noah Fact of the Day and thanks for sharing
Beautiful !! I love watching this stuff behind ships at night. The trail can sometimes stretch to the horizon.
Congratulations remco.douma! Your spotting has been chosen for Project Noah Fact of the Day:"Have you ever seen the sea glow at night? The chance is this was caused by bioluminescence. Bioluminescence is light produced by a chemical reaction within a living organism. Bioluminescence is found in fireflies and some fungi, but most bioluminescent organisms are found in the ocean. In plankton, tiny organisms called dinoflagellates produce bioluminescence as a defense mechanism against predators. Minute forces on their surface are enough to trigger the phenomenon. Bioluminescent dinoflagellates are most often observed in warm water lagoons. Sea sparkles (Alexandrium fraterculus), bioluminescent dinoflagellates spotted in Maldonado, Uruguay, by Project Noah user remco.douma" https://www.facebook.com/projectnoah/photos/a.10150595289465603.674700.10150120463815603/10155412864700603/?type=1&theater
Photographed
PublishedApril 6, 2015

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