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Chlorophyll in transitional, coastal and marine waters (CSI 023) - Assessment published Mar 2013
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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.
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Chlorophyll in transitional, coastal and marine waters
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Distribution of outcomes of assessments of species of European interest in coastal ecosystems
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Winter oxidized nitrogen (NO2 + NO3) concentrations in European seas in 2008
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The map shows the winter oxidized nitrogen concentrations in the European coastal and open waters in 2008.
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 in a regional sea
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Total catch in International Council for Exploration of the Sea (ICES) and General Fisheries Commission for the Mediterranean (GFCM) fishing regions in Europe
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The map shows the total catch in ICES and GFCM fishing regions of Europe. Status of fish stocks was assessed in 2009 (ICES) and from 2002-2009 (GFCM), although data refers to 2008 in the ICES regions and 2005 in the GFCM regions.
Catch is divided into proportions of catch of assessed stocks (green) and catch of unassessed stocks (white).
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Status of fish stocks and catch quotas in relation to MSY
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Trend in winter oxidized nitrogen concentrations in coastal and open waters of the Baltic, North East Atlantic (Greater North Sea, Celtic Seas) and Mediterranean Sea (Adriatic Sea), 1985 - 2010
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The figure shows trend in winter oxidized nitrogen (nitrate + nitrite) concentrations in coastal and open waters of the Baltic, North East Atlantic (Greater North Sea, Celtic Seas) and Mediterranean Sea (Adriatic Sea) (% of stations showing a statistically significant change within the period 1985-2010). Numbers in parentheses indicate the number of stations included in the analysis for each country. "Open sea" is the total of all off-shore stations (>20km) within a (sub)region.
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Change in winter orthophosphate concentrations in coastal and open waters of the North East Atlantic, Baltic, Mediterranean and North Seas
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The figure shows change in winter orthophosphate concentrations in coastal and open waters of the North East Atlantic, Baltic, Mediterranean and North Seas, 1985-2008
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Aggregated assessment of hazardous substances in biota measured in the North East Atlantic, Baltic Sea, and Mediterranean Sea
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The pies show the proportion of stations on map with low (green), moderate (yellow) and high (red) concentrations in the latest monitoring year for each of the seven hazardous substances. In the case of the three metals the boundary between moderate and high is set using foodstuff limits. The arrow indicates the general trend for each category where one can be identified
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Fish catches by the EU-27, 1950–2008 (tonnes) for different categories of fish and invertebrates
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Average change in Marine Trophic Index in seas in Europe
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