Concentrations of DOC, TOC, Tot N and Tot P in enrichment water, mesocosms (final day) and natural systems (Råne, Öre and Daugava rivers) and their recipient estuaries.

a<p>average of 3 measurements at 1 sampling location.</p>b<p>average of 3 measurement at 6 sampling locations.</p>c<p>average of 1 measurement at 6 sampling locations.</p>d<p>average of 1 measurement at 5 sampling locations.</p><p>Numbers within brackets are standard deviation.