Mangroves are crucial for the oceans as they protect coastlines from erosion, provide vital habitat for many marine species, capture CO2, and filter water pollutants.
Mangroves are true marine nurseries, hosting an astonishing biodiversity. Fish, crabs, and shrimp come to shelter here to grow peacefully before joining the open ocean. They also serve as a comfortable refuge for migratory birds that rest and feed before continuing their journey. Some rarer species, such as the famous manatee or the elusive Bengal tiger, directly depend on this unique and fragile ecosystem. Without mangroves, this delicate balance would quickly collapse, endangering a whole host of species.
Mangroves act as a natural barrier against storms, waves, and even some tsunamis, thus limiting coastal erosion caused by all these violent phenomena. The powerful network of roots of the mangroves slows the water's force, dissipating its energy before it reaches the lands behind. Furthermore, these same roots directly stabilize the soil by capturing sediments and preventing their washout to the ocean: a true natural anchor for the coasts. Without mangroves, many shorelines would be completely vulnerable, and entire communities could lose their homes after a single extreme weather event.
Mangroves act as true natural sponges. Their tangled roots capture sediments and particles, limiting excess pollution in the ocean. Thanks to this filtration, coastal waters become clearer and more conducive to the development of coral and numerous marine species. At the same time, the continuous decomposition of fallen leaves gradually releases essential nutrients such as nitrogen and phosphorus, thus nourishing an entire underwater food chain. As a result, mangroves naturally boost the productivity and balance of entire marine areas.
Mangroves are true champions at "absorbing" and storing carbon. Thanks to their complex roots and organic-rich soil, these coastal forests sequester up to four times more carbon than other traditional tropical forests. All the carbon captured by mangroves means less in the air, effectively contributing to slowing down climate change. Additionally, they keep this carbon securely locked underwater through a highly efficient long-term storage process. As a result, preserving mangroves is a concrete way to provide a strong boost in the face of the current climate crisis.
Although they cover less than 1% of coastlines worldwide, mangroves directly or indirectly support the survival of approximately 75% of commercially caught tropical fish.
The aerial roots of mangroves, called pneumatophores, allow these amazing trees to breathe underwater, a very rare adaptation mechanism among plants.
The Sundarbans mangrove, located between India and Bangladesh, is the largest mangrove forest in the world and serves as an essential sanctuary for the iconic Bengal tiger.
Mangroves act as a powerful natural shield: it is estimated that they can reduce the destructive power of tsunamis and coastal storms by up to 70%, thereby protecting populations and their habitats.
Mangroves act as natural barriers against coastal erosion, storms, and tsunamis. With their robust and complex root systems, they effectively stabilize coastal soils and absorb a significant portion of wave energy, thereby reducing physical damage caused by extreme weather events.
Mangroves naturally filter pollutants and excess nutrients present in coastal waters. Their roots slow down the flow of water, allowing sediments, contaminants, and heavy metals to settle, which significantly improves the quality of the surrounding water and creates healthier conditions for aquatic life.
Mangroves are extremely effective at sequestering and storing carbon, much more so than many other terrestrial forest ecosystems. Through this process, they play a crucial role in stabilizing the global climate by reducing the amounts of greenhouse gases in the atmosphere.
Among the main threats to mangroves are deforestation for urbanization and aquaculture, industrial, agricultural, and domestic pollution, as well as climate change exacerbating the impacts of rising sea levels and extreme weather events.
Mangroves provide a protected habitat rich in nutrients, ideal for the reproduction, feeding, and growth of many species. Their submerged roots and branches offer a safe refuge from predators, making these areas vital for various forms of marine life such as fish, crustaceans, birds, and marine mammals.
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