Indonesia is a rich country, we should be proud of our country. we have the largest mangrove forest in the world, the spread of the exotic coral reefs, sea grass that lie in almost all the beaches, which are invaluable sources of many fisheries. by Rusila Noor, et al. (1999) Indonesia is a country that has the largest mangrove forest biodiversity in the world with the world's largest and most varied structures in the world. What is lacking ... try entar deh data problems we see below. Mangrove forests or mangroves commonly called, although the mention of mangroves because it does not fit exactly only mangroves is one of the species itself is kind of mangrove Rhizophora spp. Mangrove forest is a typical forest types and grows along the coast or estuaries are influenced by tides. Mangroves are often found in coastal areas are protected from the onslaught of the waves and gently sloping areas in the tropics and sub tropics (FAO, 2007). According Gunarto (2004) thrives in the mangrove estuaries or estuarine area that is the ultimate goal of organic particles, or silt carried from upstream akibar erosion. Fertility of this area is also determined by the presence of tidal nutrient transporting. Based on data from Directorate General of Land Rehabilitation and Social Forestry (2001) in Gunarto (2004) Mangrove forest cover in Indonesia in 1999 is estimated at 8.60 million hectares will be but about 5:30 million hectares in damaged condition. While the FAO data (2007) Mangrove forest area in Indonesia in 2005 reached only 3,062,300 ha or 19% of the Mangrove forest in the world and the largest in the world than Australia (10%) and Brazil (7%).