The marine fisheries and aquaculture sector are very important to Greece due to its economic, social and cultural contribution to coastal areas, both for islands and mainland Greece. Significant aquaculture development has resulted in remarkable results not only regarding the production of domestic fresh, cheap and high quality fish (especially seabass and gilthead seabream), but also the creation of a socio-economic structure that directly and indirectly involves thousands of employees, particularly in the fisheries-dependent areas of the country. In addition, mariculture is the only productive activity that has colonized uninhabited islands and rock-islands which are normally excluded from other investments.