There is an emphasis on freshwater waterways, exotic forest species, and exotic marine species in estuaries and coastal waters. With regard to water management, the national programme of dams expected to provide hydroelectricity (2007) foresees construction of ten new dams on Portuguese rivers (subject to environmental impact assessments). A national water plan was due in 2010, pursuant to the EU Water Framework Directive. In the area of sea management, there is a national strategy of the sea (2006).