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Sargassum
References & Edit History Quick Facts & Related Topics
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Close-up of Sargassum algae with golden-brown fronds and numerous round, yellow air bladders clustered among the leaves. A young boy in a neon yellow shirt and red shorts sits in shallow water on a sandy shore, with a dense blanket of brown sargassum algae covering the sea near Fajardo, Puerto Rico. A Sargassum fish, Histrio histrio, camouflaged among floating brown sargassum algae near the ocean surface in the tropical Pacific. A red tractor with a front loader removes large piles of brown sargassum seaweed from the sandy beach near the ocean in Playa del Carmen, Mexico. Sargassum

Sargassum: References & Edit History

Article Contributors

Primary Contributors

  • Melissa Petruzzello
    Melissa Petruzzello (she/her) is Assistant Managing Editor and covers plants, algae, fungi, insects, spiders, renewable energy and environmental engineering. She also handles certain topics in Christianity, notably Protestant history and churches. 

Other Encyclopedia Britannica Contributors

Article History

Type Description Contributor Date
Article title updated for style. Nov 06, 2026
Noted the release of ammonia during decomposition. Mentioned the 2026 Great Atlantic Sargassum Belt. Jul 14, 2026
Article thoroughly revised and updated. Jun 30, 2026
Replaced media and added a taxonomic box. Apr 22, 2026
Article thoroughly revised. Feb 01, 2017
Deleted Web site: ''Sargassum'' reproduction. Aug 15, 2013
Media added. Nov 11, 2008
Added new Web site: Marine Life Information Network - Wireweed - Sargassum muticum. Sep 15, 2008
Article revised and updated. Nov 02, 2007
Article added to new online database. Jul 20, 1998
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