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The Water Framework Directive – opportunities and new developments in freshwater conservation

Main goal of the WFD is to reach the "good status" of all European freshwater bodies by 2015. This is defined by the "good ecological status" and the "good chemical status".

Mayfly larvae
enlarge picture Mayfly larvae (Ephemera sp.)

Ecological status assessment is based on "Biological Quality Elements" and supported by hydromorphological and chemical parameters.

For rivers and lakes, the relevant Biological Quality Elements are:

This website describes the assessment procedure for the Quality Element "benthic invertebrates".


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Prachtlibelle auf Grashalm

© 2017Universität Duisburg Essen | Datum: 26.03.2017
Online: http://fliessgewaesserbewertung.de/en/gewaesserbewertung/anlass/index.php