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Mangrove ecosystems represent natural capital capable of producing a wide range of goods and services for coastal environments and communities and society as a whole. Some of these outputs, such as timber, are freely exchanged in formal markets. Value is determined in these markets through exchange and quantified in terms of price. Mangroves are important for aquatic life and home for many species of fish.
Ecologically, mangroves provide habitats for many marine organisms, such as fish, shellfish, and prawn, as well as for many land-based organisms, such as birds and crocodiles. They also help to maintain water quality via nutrient cycling. (In fact, wastewater is sometimes treated with mangroves!) Furthermore, they slow water, encouraging sediment to settle down, and also serve as breakwaters in storms or tsunamis, protecting the coasts.
Mangroves are also protected by several treaties or organizations, including both international treaties like the Ramsar Convention, and national marine protected areas in various countries.