In the last century, humanity has experienced extremely strong growth. However, to a large extent the development was carried out at the expense of the environment and without ensuring the sustainability of natural resources (Jackson et al. 2001; Butchart et al. 2010).
The European seas and coastal areas are particularly strongly affected by various anthropogenic pressures (Halpern et al. 2008; Korpinen et al. 2012; Micheli et al. 2013). Today marine ecosystems exhibit significant deterioration, many biological resources have led to collapse and there is great biodiversity loss (Jackson et al. 2001; Diaz and Rozenberg 2008).
The high and rapidly increasing demand of marine space for various purposes, such as human activities related to fisheries, aquaculture, energy production facilities from renewable sources, extraction of oil, gas and other raw materials, maritime transport, tourism, exercising multiple pressure on marine resources and the need to preserve ecosystems and biodiversity requires an integrated approach to management of the marine environment (Douvere 2008). Human activities at sea receive spatial management for decades (villagers fishing restrictions, zoning mining sites of raw materials, creation of marine protected areas, etc.). However, traditional management was a sectoral approach, where human activity is developing independently from others. Today managing sectoral and fragmented planning are insufficient for sustainable development. The modern concept of ecosystem approach to marine management requires coordinated planning of all human activities, aiming inter alia to protect biodiversity (Katsanevakis et al. 2011).
Coastal and marine ecosystems provide a wide variety of ecological functions that directly or indirectly translated into financial services and valuesfor humans (MEA 2005). The marine and coastal areas resources are mostly renewable sources, which provide effective if management will continue providing sustainable yields. However, in recent years the resources are depleted due mainly to anthropogenic pressures with serious socio-economic consequences (Remoundou et al. 2009).
The socio-economic evaluation is central to the development of marine strategies that require identification and analysis of the measures to be taken to achieve or maintain a good environmental status (Good Environmental Status, Directive 2008/56 / EC). To this end requires an economic assessment of the goods and services of the marine environment for the development of action plans with the objective of good environmental status in accordance with applied policies and directives. Many goods and services provided by ecosystems are not traded in markets and thus there are economic values that can be used as an indicator for assessing their value. However, the valuation of these goods and non-tradable services can be used in environmental valuation methods (Bergland et al. 1995; Garrod and Willis 1999; Navrud 2009; Bagstad et al. 2013).
The Maritime Spatial Planning as a cross-cutting policy tool, based on the approach based on the ecosystem and contribute to the integrated management of maritime areas, aiming both to promote sustainable development, and sustainable use of marine and coastal resources (Ehler and Douvere 2009; Katsanevakis et al. 2011). The current implementation of marine spatial plans consistent with simultaneous achievement of environmental and socio-economic objectives (Ehler and Douvere 2009). The Directive 2014/89 / EU of the European Parliament and the EU Council establishing a framework for Maritime Spatial Planning obliges Member States to adopt and implement maritime spatial plans for their waters as soon as possible and no later than March 2021.