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Confidence rating of marine eutrophication assessments

image of Confidence rating of marine eutrophication assessments

This report presents the development of a methodology for assessing confidence in eutrophication status classifications. The method can be considered as a secondary assessment, supporting the primary assessment of eutrophication status. The confidence assessment is based on a transparent scoring of the 'value' of the indicators on which the primary assessment is made. Such secondary assessment of confidence represents a first step towards linking status classification with information regarding their accuracy and precision and ultimately a tool for improving or targeting actions to improve the health of the marine environment.

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Results and discussion

Confidence ratings were made for 189 areas of the Baltic Sea including the Kattegat and Danish Straits. These areas consisted of 172 coastal areas and 17 open water bodies. A summary of all confidence ratings is presented in Table 3.

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