The mangrove is a specific ecosystem of the intertidal zone, having developed adaptation capacities to the extremely selective environment, and which the distribution of different plant species is based on parameters such as salinity (Walsh, 1974), duration of flooding (McKee, 1993), sedimentation rate (Ellison, 1998). The mangrove is, with Rainforest, one of the most productive ecosystems in land area, i.e. 30.0 Tmol C/y (Twilley et al. 1992; Jennerjahn and Ittekkot, 2002, Alongi et al., 2005, Kristensen and al., 2008). The mangrove is crucial .at both ecologically and economically levels. The mangrove has a key role in the conservation of tropical coastlines. First, it stabilizes the shoreline, and serves as barrier against erosion caused by waves, by reducing wave energy, and changing hydrocirculations. Moreover, because of its high productivity, the mangrove is the basis of nutrient cycling in coastal environments. Coastal waters bordering mangroves are generally rich in shrimps and. fishes; mangrove has ,thus a vital importance to the fishing industry. Moreover, the mangrove acts as a home to a large animal biodiversity, notably endangered species live there. Some fishes come to reproduce, others ensure their growth. It serves as protection for juveniles before migrating into coastal waters. Predators come to feed. Crabs are numerous. Inmonetary terms, income related to fisheries undertaken by the presence of mangroves is estimated at 10000 $ per hectare per year, with a high variability between areas and market value. The total value of goods and services paid by the mangroves can reach up to 200000 $ per hectare per year. Currently, the mangrove occupies about 75 percent of tropical coastlines, on nearly 200 000 km2, and its vegetation is composed of +/-19 families, made up to +/-27 genera and +/-70 species (Ellison and Farnsworth, 2001). However, due to population growth, increased urbanization, expansion of industrial activities, exploration and exploitation of natural resources, the mangrove is now fading at a rate of 1 to 2 percent per year. This rate is equivalent or even higher than that of threatened ecosystems such as coral reefs or primary rainforest (UNEP- WCMC, 2006, Valiela et al. 2001; Wilkie and Fortuna. 2003). The destruction.of the ecosystem takes place all-around the world,