Résumé original Original abstract
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Spanish Mediterranean coasts support the pressures derived for the increasing of the population. This problem is not only related to the big cities located in the coastal areas, as Barcelona, Valencia and other medium size cities (e.g. Alicante, Málaga, Almería...) but to the general increasing of the population in coastal areas, especially in the last decades. Pressures of the urban nucleus on the marine environment can negatively affect marine ecosystems. Yet some important sources, as the nearly invisible submarine groundwater discharges (SGD), that are important supplier of pollutants to the coastal habitats and ecosystems, are ignored. The identification of sources and pollutants (surfactants, metals, etc.) are key points for the assessment of the environmental quality of marine ecosystems. However, recordings of pollutants in marine ecosystems do not provide information about their effects. An integrated ecotoxicological approach should be taken account for evaluating the anthropogenic risk on the marine ecosystems.
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