In Search of Marine Ecosystem Services Values The V-MESSES Database

Economic valuation of marine ecosystem services is strongly anchored within the logic of Marine Strategy Framework Directive (MSFD). An inventory and critical assessment of marine valuation studies was conducted within the European Union funded Policy-oriented marine Environmental Research for the Southern European Seas (PERSEUS) research project (http://www.perseus-net.eu/) and this information was fed into a suitable, spatially explicit valuation database, namely Valuation database for Marine Ecosystem Services of Southern European Seas (V-MESSES), with the objective of providing monetary values for Southern European Seas (SES) to be used in cost–benefit and cost-effectiveness applications. At present, the database contains 93 studies offering over 110 value estimates for four categories and 20 subcategories of marine ecosystem services covering all regions of Mediterranean and Black Sea. The database enables so far the estimation of the aggregated value of all ecosystem services. However, the selection of appropriate, policy relevant value estimates is not a simple and straightforward task, since several conditions should be met in order to conduct effective and efficient value transfers. Bearing in mind the above limitations, tentative reference value estimates are compiled from the V-MESSES database for a number of coastal and marine ecosystem services, although not all service categories are covered sufficiently.