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    Eutrophication
Eutrophication in marine, coastal and estuarine ecosystems is a consequence of nutrient over-enrichment, mostly inputs of nitrogen, phosphorus and organic matter from land-based sources (agriculture, urbanisation), marine activities (aquaculture) and from atmospheric deposition (e.g. from road transport and shipping emissions to the air). Eutrophication has been a problem in Europe’s coastal and marine waters for decades.
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