This research aimed to detail, from a systemic view, the mangrove ecosystem on the Brazil scale, based on the Units scale, and on the ecosystem definitions. The multiplicity of mangrove phytophysiognomies along the Brazilian coast requires specific knowledge about the conditioning agents that explain such configurations, so we sought to detail the energy signature of the Brazilian coast to better understand the dispersion, diversity and zoning of the mangrove vegetation. The database was secondary, collected in national and international articles, theses and dissertations and official websites. The results are: 1- Nine Environmental Units for the Brazilian Coastal Domain were identified, based on their general characteristics, where a previous study established eight Units; 2- The flowcharts for each Unit were prepared based on subsidiary energies, that is, average annual sunshine; annual average temperature; average annual precipitation; nutrients; average annual flow; average tidal range, thus resulting in an environmental characterization for each Unit. 3- In response to the Energy Signature of each Unit, it was possible to identify patterns of dispersion / occurrence of mangrove species with occurrence. 4- For Brazil, the most diverse genus is Rhizophora, which occurs throughout the Brazilian coast. However, only the Rhizophora mangle is present from the mouth of the Oiapoque-AM to Santa Catarina. R. racemosa and R. harrisonii are dispersed from the North Region with its southern limit in the Delta of the river Parnaíba-PI in the Northeast of Brazil.