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What Florida beaches will be affected by seaweed in 2023?

no matter how much Sargassum we'll land on the east coast beaches, the west coast of Florida is largely spared every year [and] this year is no exception, Dr. Hu says. Nevertheless, they still anticipate there will soon be an impact on beaches in South Florida where the brown seaweed washes ashore.



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Bits of Sargassum seaweed are washing ashore around Avenida 16-18 on Tuesday, May 23, 2023. Giant blobs of Sargassum hug the shoreline next to the William O Lockhart Municipal Pier in Lake Worth Beach, Florida on June 1, 2023. Sargassum accumulates on the beach at Phipps Ocean Park Tuesday May 30, 2023 in Palm Beach.

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Since 2011, 2023 still ranks in the top half of the worst sargassum seaweed seasons. With the latest data, USF researchers say in June, sargassum will likely decrease in the Gulf of Mexico, meaning beachgoers may not have such a smelly experience. The USF lab forecasts the decrease to continue through August.

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Florida's seaweed season typically runs from April until October, peaking in June and July. The seaweed comes in waves, depending on currents and wind direction. The seaweed itself is not harmful to humans, but decaying sargassum on beaches releases hydrogen sulfide that can impact people with breathing issues.

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As summer is now in full swing, however, scientists with the University of South Florida Optical Oceanography Lab found a drop in the amount of sargassum blooms. Sargassum seaweed on a Fort Lauderdale beach. May 2023. They noted that the amount of seaweed dropped by about 9 million metric tons between May and June.

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Florida's seaweed season typically runs from April until October, peaking in June and July. The seaweed comes in waves, depending on currents and wind direction. The seaweed itself is not harmful to humans, but decaying sargassum on beaches releases hydrogen sulfide that can impact people with breathing issues.

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Atlantic Beaches (North to South)
  • Jacksonville Beach (surfguru.com)
  • St. Augustine Beach (surfstationcam)
  • Flagler Beach Pier.
  • Ormond by the Sea.
  • Daytona Beach.
  • New Smyrna Beach.
  • Cocoa Beach (Jetty Park)
  • Cocoa Beach.


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That's because the seaweed will follow the Gulf Stream current, which moves around Cuba, past the Florida Keys and then makes its way around Miami and the east coast of Florida, its those beaches where the seaweed will likely wash ashore. It's a natural plant is not an invasive species.

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Sargassum season in the Mexican Caribbean typically runs from May through October, with July and August generally being the worst months for its arrival.

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Sargassum normally does not accumulate in places like Sarasota Bay or Tampa Bay,” says Tomasko. “The biggest problem has been around the resort beaches in the Caribbean and Southeast areas, like Miami Beach.”

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While exposed eastern shores are most likely to get hit by surges of sargassum, some beaches in Mexico have no sargassum. This includes Playa Norte on Isla Mujeres, Quintana Roo and Cozumel's western shore. They're generally seaweed-free.

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At this time, red tide is not present on St. Pete/Clearwater's beaches. Although many national news outlets reported about a massive seaweed or sargassum blob coming to Florida this summer, this is not affecting the beaches of St. Pete/Clearwater in any way.

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While the 2023 sargassum bloom isn't as large as originally expected, it will still be a major year for the algae and the lab expected it to continue increasing in the Caribbean Sea and Gulf of Mexico in March. It is expected to travel west from the Caribbean Sea and become a hazard on some beaches in Florida.

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DAYTONA BEACH, Fla. The seaweed called sargassum has been showing up for the last few weeks. Those on the beach in Volusia County think it could help rebuild the dunes and beaches after last year's hurricanes took several dozen feet of sand back to the ocean. “A lot of people think we move it. We don't move it.

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As a result of this, Fort Lauderdale crews are out daily, scooping up the fresh sargassum from the beaches. They take truckloads of it to a park where the city repurposes it and by the time it decomposes, it has very little smell and becomes fertile soil.

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Popular resort hubs, including Playa del Carmen and Tulum, have ramped up efforts to deter sargassum from affecting travelers. What is this? Both destinations have set up temporary barriers and hired more cleaners in an effort to attract more travelers.

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Study: Sargassum on beaches can hide notable amounts of Vibrio bacteria. COCOA BEACH, Fla. — The sight of bountiful seaweed coating parts of the shoreline of Florida's Atlantic coast is nothing new for the late spring and early summertime. What is new to researchers is what may be within the sargassum.

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

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Key West sargassum is probably the last thing you had in mind when planning your trip to the Florida Keys. Unfortunately, it's a natural occurrence year after year in South Florida.

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