An overview of ecological status, vulnerability and future perspectives of European large shallow, semi-enclosed coastal systems, lagoons and transitional waters. Estuarine, Coastal and Shelf Science,

a b s t r a c tThe applications of the Driver-Pressure-State-Impact-Response (DPSIR) framework were reviewed for several Social-Ecological Systems (SES), with an emphasis on the coastal environment. The evolution of DPSIR was traced from the Stress-Response framework to its present form. Discrepancies in the definitions of the DPSIR's information categories are presented. The application of the framework was explored both as a discrete tool and combined with other methods for different coastal and estuarine systems and biodiversity. The overall merits and limitations of the DPSIR framework are discussed in a critique. Several recommendations are suggested for refining the framework to overcome its limitations. Finally it is concluded that an updated DPSIR framework is a useful adaptive management tool for analyzing and identifying solutions to environmental problems.

No abstract

No abstract

The Ria Formosa is a shallow mesotidal lagoon on the south coast of Portugal, with natural biogeochemical cycles essentially regulated by tidal exchanges at the seawater boundaries and at the sediment interface. Existing data on nutrients in the water column and the sediment, together with chlorophyll a and oxygen saturation in the water column, are compared using different models for assessing eutrophication. The European Environmental Agency criteria are based on the comparison of nutrient concentrations which indicate that the situation in the Ria Formosa is ''poor'' to ''bad''. In contrast, the United States Estuarine Eutrophication Assessment is based on symptoms, including high chlorophyll a and low oxygen saturation, which indicate that the Ria Formosa is near pristine.Despite these contradictions, a preliminary assessment by Driving forces, Pressures, State, Impact, Reponses (DPSIR) of eutrophication demonstrate the potential for episodic eutrophic conditions from treated and untreated domestic effluent as well as from non-point source agricultural run off. Sediments are also an important source of nutrients in the lagoon, but their contribution to potential eutrophic conditions is unknown. r