Marine Protected Areas (MPAs) are a principal tool for conservation management in the coastal and marine environment. They range from large, zoned, multi-use areas to the more common smaller, usually un-zoned, sites in which all or certain extractive activities are prohibited. MPAs are locations within which certain types of human activity, and particularly fishing, are intended to be regulated more restrictively than they are outside those boundaries. However, the use of MPAs, with notable exceptions, remains unsophisticated in a majority of cases. Also, Marine Protected Areas (MPAs) are established to restore degraded habitats, to allow stock recovery following over-fishing, to protect representative samples of biodiversity (species, habitats, ecosystems), to support fisheries in surrounding areas, and to support social and economic development.