The authors are solely responsible for the content of this report. Material included herein does not represent the opinion of the European Community, and the European Community is not responsible for any use that might be made of it.
The involvement of estuarine specific expert groups (Regional Working Groups, RWGs) represents an integral part of several TIDE studies (JACOBS 2013 , CUTTS & HEMININGWAY 2013). For each study, the composition of the RWGs was defined according to the respective subject of discussion. In the frame of this study, RWGs at Weser, Elbe, Humber and Scheldt were involved in identifying the main pressures affecting the estuary zones of the TIDE estuaries as a basis to estimate measure effects in relation to the aims of the Water Framework Directive (see 3.2.2.1).