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Home / Parks, Recreation and Open Spaces / Learn about sargassum (seaweed) on Miami-Dade County beaches

Learn about sargassum (seaweed) on Miami-Dade County beaches

April 19, 2024 — Parks, Recreation and Open Spaces
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Sargassum on the beach

Sargassum, also often referred to as seaweed, is a naturally occurring seaweed that floats freely on the ocean surface and is abundant in the Atlantic Ocean and the Gulf of Mexico. It provides crucial habitat for many marine species, including endangered sea turtles, which, upon hatching on our beaches, make their way out to the sargassum to spend their juvenile years feeding and growing amongst the seaweed mats. It is also an important element in shoreline stability. Sargassum also provides nutrients to the shoreline and can replenish areas that suffer beach erosion due to hurricanes and storms, thereby helping to keep our shorelines resilient.

Over the past several years, South Florida and the Caribbean have experienced high levels of sargassum in coastal waters and on local beaches. Excessive amounts of sargassum in populated areas are causing concern worldwide.

Maintaining our beautiful beaches remains a priority for Miami-Dade County Parks, Recreation and Open Spaces Department. Clean-up crews operate on a daily basis to remove the buildup of seaweed on the water line.

Learn more about Sargassum

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