Caribbean Sargassum Levels Drop as Fall Season Takes Hold

Sargassum concentrations have begun their seasonal descent across the Atlantic and Caribbean, with September data from the University of South Florida's Optical Oceanography Lab showing continued retreat.

Even as the decline gathers pace, researchers note that seaweed volumes remain elevated compared to what the region typically experiences. The pattern reflects the annual cycle that scientists monitor to track the health of local beaches and ocean conditions.