University of South Florida

USF College of Marine Science

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Masses Of Seaweed Threaten Fisheries And Foul Beaches

 A picture taken in April shows sargassum seaweed on the French Caribbean Island of Guadeloupe. Helene Valenzuela /AFP/Getty Images

A picture taken in April shows sargassum seaweed on the French Caribbean Island of Guadeloupe. Helene Valenzuela /AFP/Getty Images

Washington, D.C. – If you’ve been to a beach this summer, anywhere from Texas to the Carolinas, you’ve likely seen it. Masses of brown seaweed, sometimes a few clumps, often big mounds, line the shore. It’s sargassum, a floating weed that’s clogging bays and piling up on beaches in the Gulf and Caribbean.

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Our blue planet faces a suite of challenges and opportunities for understanding and innovation. Our mission is to advance understanding of the interconnectivity of ocean systems and human-ocean interactions using a cross-disciplinary approach, to empower the next workforce of the blue economy with a world-class education experience, and to share our passion for a healthy environment and science-informed decision-making with community audiences near and far.