Trends in mean summer chlorophyll a concentrations in coastal waters of the Baltic Sea, the Mediterranean (Italian and Greek waters) and the Greater North Sea (mainly the southern and eastern North Sea and the Skagerrak), 1985-2004

Figure Created 12 Nov 2009 Published 12 Nov 2009 Last modified 29 Nov 2012, 11:36 AM
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Trend analyses are based on time series 1985-2003/04 from each monitoring station having at least 3 years data in the period 1997-2003 and at least 5 years data in all


European data


Additional information

Number of stations in brackets. Baltic Sea (incl. the Belt Sea and the Kattegat) data from: Denmark, Estonia, Finland, Germany, Latvia, Lithuania, Poland, Sweden and ICES. Mediterranean data from: Greece and Italy North Sea (incl. the Skagerrak) data from: Belgium, Denmark, Netherlands, Norway, Sweden, UK and ICES.

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