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News Release Seaweed

New study quantifies sargassum’s multi-million dollar impact to U.S. coastal economies

WHOI led the study’s economic modeling and analysis, examining impacts across three sectors central to coastal economies: tourism, recreation, and fisheries.

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Tatiana Schlossberg
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Sargassum Patch
Juli Berwald
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Petroleum residues can survive long-distance transport by adhering to floating debris, dramatically extending how far oil pollution can travel in the marine environment. (Diane Buhler, Friends of Palm Beach)
A “black smoker” at the Piccard hydrothermal field, 5,000 meters below the surface, on the Mid-Cayman Rise. (Photo by Chris German / ROV Jason, ©WHOI, 2012)
Chart showing how HAB forecasts strengthen communities
HAB impacts on fisheries
What goes into a HAB forecast
Throughout 2025, WHOI’s Centennial Medals have highlighted a diverse group of ocean champions: world leaders, explorers, philanthropists, and advocates whose efforts have reshaped how societies understand and care for the ocean. (Photo credit: Daniel Hentz, ©WHOI)
A satellite image of Tahaa in French Polynesia
Impacts from flooding that occurred in Falmouth, Massachusetts on December 23, 2022. (Photo by Chris Piecuch)
Black shale
Sargassum Patch
europa clipper
A diver swims near a wreck draped with lost fishing nets. (Photo courtesy of NOAA)
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Close-up view of bacterial communities thriving at the vent site. The distance between the two green laser points is 9 cm, providing a scale for the dense microbial structures visible on the seafloor. (Photo by EXTREME25)
WHOI reef solutions field team
This year marks the fourth appearance of the Ocean Pavilion in the Blue Zone of a UN Climate Conference of the Parties. (Photo courtesy of the Ocean Pavilion)
spillhaus projection
Between 2016 and 2024, researchers collected 103 respiratory samples from 85 North Atlantic right whales using drones. Drones provide a stable, quiet platform, minimizing stress and disturbance to the animal. (Photo courtesy NEAq/WHOI, NMFS/NOAA Permit #21371)
Heidi Sosik
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