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• n  brown algae with rounded bladders forming dense floating masses in tropical Atlantic waters as in the Sargasso Sea

• The masses and banks of sargassum weed impeded Columbus for a fortnight on his first voyage to the New World (September, 1492).
• In three searches, they had not found the "plains and meadows" of sargassum weed commonly reported as forming the Sargasso Sea (PTI, July 20) east of the West Indies.

• gulfweed
• sargasso
• Sargassum bacciferum

News & Articles

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• Seaweed-lined beaches push Gulf Shores, Orange Beach to bury the issue (photos)
  While sargassum is a common sight along the Alabama Gulf Coast, over the last few weeks Baldwin County's shoreline has been blanketed with what some are calling an unprecedented amount of the seaweed, prompting officials to act.
  June 13, 2013 - Mobile Press-Register