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Indicator Assessment Chlorophyll in transitional, coastal and marine waters (CSI 023) - Assessment published Jul 2011
In 2008, the highest summer chlorophyll-a concentrations were observed in coastal areas and estuaries where nutrient concentrations are high, namely in the Gulf of Riga, the Gulf of Finland and along the coast of France and Belgium. Although nutrient concentrations in some European sea areas decreased from 1985 to 2008 (see Core Set Indicator 21), these changes were not clearly reflected in chlorophyll-a concentrations: of the 546 stations reported to the EEA the majority of the stations (89%) indicated no statistically significant change. Changes were detected mainly in Finnish, Dutch, Norwegian, Swedish and Italian coastal waters. At the Finnish and Swedish monitoring stations chlorophyll-a concentrations showed both decreasing and increasing trends, whereas in Italy, Netherlands and Norway concentrations were mainly decreasing. An analysis of changes based on satellite imagery show significantly increasing trends of ocean colour (equivalent to chl-a)along the Mediterranean coast, whereas trends are significantly decreasing in large parts of the central Mediterranean and Black Seas. It also shows significantly increasing trends in the Baltic Sea, but here the analysis is less certain.  
Located in Data and maps Indicators Chlorophyll in transitional, coastal and marine waters
Indicator Assessment Chlorophyll in transitional, coastal and marine waters (CSI 023) - Assessment published Mar 2013
In 2010, the highest summer chlorophyll-a concentrations were observed in coastal areas and estuaries where nutrient concentrations are also generally high (see CSI 021 Nutrients in transitional, coastal and marine waters). These include the Gulf of Riga, Gulf of Gdansk, Gulf of Finland and along the German coast in the Baltic Sea, coastal areas in Belgium and The Netherlands in the Greater North Sea and in few locations along the coast of Ireland and France in the Celtic Seas and Bay of Biscay, respectively. High chlorophyll concentrations were also observed along the Gulf of Lions and in Montenegro coastal waters in the Mediterranean Sea, and along Romanian coastal waters in the Black Sea. Low summer chlorophyll concentrations were mainly observed in the Kattegat and open sea stations in the Greater North Sea, and in open sea stations in southern Baltic Sea.  Between 1985 to 2010, decreasing chlorophyll concentrations (showed in 8% of all the stations in the European seas reported to the EEA) were predominantly found along the southern coast of the Greater North Sea, along the Finnish coast in the Bothnian Bay in the Baltic Sea and in a few stations in the Western Mediterranean Sea and Adriatic Sea. In the Black Sea, it was not possible to make an overall assessment due to the lack of time series data. Increasing concentrations (observed in 5% of the reported stations) were generally observed in coastal locations in the Northern Baltic Sea but also in the open sea stations outside the north of the Celtic Seas. Most stations (87%) however showed no changes over time.
Located in Data and maps Indicators Chlorophyll in transitional, coastal and marine waters
Figure Chlorophyll-a concentrations in European seas in 2010
The map shows Chlorophyll-a concentrations in European coastal and open seas in 2010. The class boundaries “high”, “moderate” and “low” concentration are determined by the 80/20 percentiles of the data set in each sea (sub)region. The low category refers to values within the lowest 20th percentile and the high category refers to values within the upper 20th percentile of concentrations.
Located in Data and maps Maps and graphs
Figure Chlorophyll-a concentrations in European seas
The map shows summer chlorophyll-a concentrations observed in 2012 in European coastal and open seas. The class boundaries “high”, “moderate” and “low” concentration are determined by the 80/20 percentiles of the data set for the years 2007-2012 in each regional sea.
Located in Data and maps Maps and graphs
Figure Chlorophyll-a concentrations in European seas, 2008
Chlorophyll-a concentrations in European seas in 2008 based on observations
Located in Data and maps Maps and graphs
File Troff document Climate change — time to act
Climate change is a real and current threat. To avoid major irreversible impacts on society and ecosystems, we must act now.
Located in Media Audiovisuals
Figure Comparison of urban residential sprawl spatial distribution, by administrative regions and by grid-cells
Urban residential sprawl, i.e
Located in Data and maps Maps and graphs
Figure D source code Conservation status of forest-related species of Community interest listed in the EU Habitats Directive in the EU-25 (number of assessments in brackets)
Conservation status of forest-related species of Community interest listed in the EU Habitats Directive in the EU-25 (number of assessments in brackets)
Located in Data and maps Maps and graphs
Figure Conservation status of forest-related habitat types of European Union interest listed in the EU Habitats Directive in the EU-25 (number of assessments in brackets)
Conservation status of habitats per biogeographic area in forest ecosystems. Statistics by region on the left, overall statistics on the right.
Located in Data and maps Maps and graphs
Figure Conservation status of habitat types of European Union interest in heath and scrub ecosystems
statistics by region on the left, overall statistics on the right.
Located in Data and maps Maps and graphs
European Environment Agency (EEA)
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