Milky seas effect

Milky sea effect off the coast of Somalia in the Indian Ocean

Milky seas (Somali: Kaluunka iftiima; English: Milky seas), sometimes confused with mareel, are a luminous phenomenon in the ocean in which large areas of seawater (up to 100,000 km2 or 39,000 sq mi[1]) appear to glow diffusely and continuously (in varying shades of blue). Such occurrences glow brightly enough at night to be visible from satellites orbiting Earth. Unlike flashing waves or red-tide luminescence caused by "algae" such as dinoflagellates, milky seas are originate from luminous bacteria[2][3].

Mariners and other seafarers have reported that the ocean often emits a visible glow which extends for miles at night. In 2005, scientists announced that for the first time, they had obtained photographic evidence of this glow.[4][5] In a follow-up study, they observed a glow that persisted for over 40 days[1].

  1. ^ a b Miller, Steven D.; Haddock, Steven H. D.; Straka, William C.; Seaman, Curtis J.; Combs, Cynthia L.; Wang, Menghua; Shi, Wei; Nam, SungHyun (2021-07-29). "Honing in on bioluminescent milky seas from space". Scientific Reports. 11 (1): 15443. doi:10.1038/s41598-021-94823-z. ISSN 2045-2322. PMC 8322353. PMID 34326427.
  2. ^ Lapota, David; Galt, Charles; Losee, Jon R.; Huddell, Howard D.; Orzech, James K.; Nealson, Kenneth H. (1988-07-05). "Observations and measurements of planktonic bioluminescence in and around a milky sea". Journal of Experimental Marine Biology and Ecology. 119 (1): 55–81. Bibcode:1988JEMBE.119...55L. doi:10.1016/0022-0981(88)90152-9. ISSN 0022-0981.
  3. ^ Nealson, Kenneth H.; Hastings, J. Woodland (2006). "Quorum Sensing on a Global Scale: Massive Numbers of Bioluminescent Bacteria Make Milky Seas". Applied and Environmental Microbiology. 72 (4): 2295–2297. Bibcode:2006ApEnM..72.2295N. doi:10.1128/AEM.72.4.2295-2297.2006. PMC 1448986. PMID 16597922.
  4. ^ Britt, Robert Roy (October 4, 2005). "Mystery Ocean Glow Confirmed in Satellite Photos". Live Science.
  5. ^ Miller, Steven D.; Haddock, Steven H. D.; Elvidge, Christopher D.; Lee, Thomas F. (2005-10-04). "Detection of a bioluminescent milky sea from space". Proceedings of the National Academy of Sciences. 102 (40): 14181–14184. Bibcode:2005PNAS..10214181M. doi:10.1073/pnas.0507253102. PMC 1242338. PMID 16186481.

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