{"id":3063,"date":"2026-03-06T06:23:31","date_gmt":"2026-03-06T10:23:31","guid":{"rendered":"https:\/\/www.blueboatrental.fr\/?p=3063"},"modified":"2026-03-06T06:23:34","modified_gmt":"2026-03-06T10:23:34","slug":"les-sargasses-dans-le-monde-un-fleau-global-aux-racines-complexes-dans-la-caraibe","status":"publish","type":"post","link":"https:\/\/www.blueboatrental.fr\/en\/les-sargasses-dans-le-monde-un-fleau-global-aux-racines-complexes-dans-la-caraibe\/","title":{"rendered":"Sargassum Worldwide and in Guadeloupe: Understanding the Phenomenon and Continuing to Dream."},"content":{"rendered":"

A natural phenomenon on a global scale.<\/p><\/blockquote>

Amidst climate upheavals and ocean imbalances, sargassum is multiplying on the coasts of the Atlantic and the Caribbean. A new, complex, and global health and ecological challenge!<\/p>

What are sargassum?<\/h4>

Sargassum are floating brown algae belonging to the genus Sargassum. Originally from the Sargasso Sea, an area located in the North Atlantic, they were historically part of a balanced ecosystem.<\/p>

Since when?<\/h4>

As early as 1492, Christopher Columbus reported the presence of brown algae in his journal. A calm and mysterious area named the Sargasso Sea, which he crossed without incident before the discovery of Guadeloupe. An oceanographic map by Otto Kr\u00fcmmel dating from 1891 also attests to their presence in the Atlantic.<\/p>

Now, and for over a decade, massive sargassum invasions have been severely disrupting coastal ecosystems, as well as economic activities and public health in tropical regions, particularly in Guadeloupe. These brown algae, once confined to the North Atlantic, are now proliferating on a global scale.<\/p>

\"Carte
Map of Sargassum in 1891 according to Otto Krummel<\/figcaption><\/figure>

A global phenomenon<\/h4>

Since 2011, a \u201cGreat Atlantic Sargassum Belt\u201d has formed. It stretches for almost 8,000 km.<\/p>

The most affected countries are:<\/p>