Most of the macroalgae species inhabit shallow coastal waters and coral reefs, but some are planktonic (free-floating) or pelagic after being detached from reefs during storms. Sargassum includes two …

Named after the Sargasso Sea where it originally proliferated, Sargassum is a type of floating brown algae that provides food, protection, and habitat for many marine species.

Feb 11, 2025 · Dive into the Sargassum Hub to discover more about the ongoing initiatives relating to the Sargassum phenomenon happening in coastal areas around the globe.

Jul 31, 2025 · Sargassum is a group of brown algae that provides food, refuge, and breeding ground for many marine animals, such as turtles, crabs, shrimp, fish, and seabirds.

Jul 25, 2025 · Sargassum is a genus of large brown algae that can exist in two forms: attached to the seafloor or free-floating. The free-floating species, primarily Sargassum natans and Sargassum …

We are the world’s N°1 sargassum citizen science network. We raise local sargassum issues to the global audience. We monitor all areas and countries affected by sargassum. We share best practices …

Nov 23, 2025 · Sargassum, genus of about 150 species of brown algae (family Sargassaceae) generally attached to rocks along coasts in temperate regions or occurring as pelagic (free-floating) algae in …

Jun 5, 2025 · A record amount of sargassum is currently impacting shores throughout the Caribbean, from Puerto Rico to Guyana, scientists say. The prickly, brown algae releases toxic gas, killing wildlife.

Dec 4, 2025 · Blooms of yellowish-brown seaweed along the Equator are breaking records and defiling beaches, while a centuries-old patch farther north is disappearing.

3 days ago · This is the impact of the Great Atlantic Sargassum Belt — a rapidly growing floating mass of seaweed that now spans over 5,000 miles across the Atlantic Ocean.