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The mangrove, a forest that grows in salt water

26 July is the international day for the conservation of mangroves. This atypical maritime forest, subject to the tides and trade winds, plays an essential role in the dynamics of tropical shores and provides unsuspected services to populations and the environment.The mangrove, a forest that grows in salt water

Mangrove plot replanted with the species "Rhizophora" in the Mahakam Delta, Indonesia
Mangrove plot replanted with the species "Rhizophora" in the Mahakam Delta, Indonesia
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A habitat for many species of fish and crustaceans, an effective carbon trap, a natural barrier that attenuates the energy of storms and tsunamis, and a filter for certain pollutants, mangroves are still degraded and fragmented in many countries. Today covering nearly 150,000 km2, its global surface area has decreased by nearly 20% until the end of the 2000s. Today, still faced with intensive shrimp farming, timber harvesting and urban development, its decline is however less marked, under the influence of protection measures and awareness of its vulnerability.

Sensitive to changes in sea level and the recurrence of extreme climatic events linked to the ocean, the mangrove is also at the forefront of ecosystems threatened by the climate crisis.

Discover, through our videos and photos, a prolific and fragile ecosystem that scientists are studying to protect and conserve, particularly in French territories where mangroves cover nearly 100,000 hectares.

A book about mangroves (only available in French)

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A very unique phenomenon is taking place on the French Guyanese coastline. In the heart of the mangrove, shoals of mud and vegetation roam along the coasts and greatly modify the contour of the coastline. This dynamic marshland ecosystem is being studied by geographer Antoine Gardel and his team, who have developed observation techniques to better understand this ever-changing natural environment.

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French Guiana and its changing coastline
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Nanoplastics with a size of less than a thousandth of a millimetre are the finest form of plastic pollution. The Pepsea research project focusses on a type of nanowaste that is still poorly understood. Researchers chose Guadeloupe to study its impact on the environment. The island is exposed to the ocean and the North Atlantic Gyre making it an area of plastic accumulation. It is the perfect field of study for researchers who are going to explore its beaches and mangroves. They investigate the…

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Nanoplastics, a bitter-tasting soup?

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