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Water Framework Directive Intercalibration Technical Report: Lake phytobenthos ecological assessment methods

Kelly, M; Acs, E; Bertin, V; Bennion, H; Borics, G; Burgess, A; Denys, L; (2014) Water Framework Directive Intercalibration Technical Report: Lake phytobenthos ecological assessment methods. (JRC Technical Report EUR 2651 ). European Union: Luxembourg, Luxembourg. Green open access

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Abstract

The European Water Framework Directive (WFD) requires the national classifications of good ecological status to be harmonised through an intercalibration exercise. In this exercise, significant differences in status classification among Member States are harmonized by comparing and, if necessary, adjusting the good status boundaries of the national assessment methods. Intercalibration is performed for rivers, lakes, coastal and transitional waters, focusing on selected types of water bodies (intercalibration types), anthropogenic pressures and Biological Quality Elements. Intercalibration exercises were carried out in Geographical Intercalibration Groups - larger geographical units including Member States with similar water body types - and followed the procedure described in the WFD Common Implementation Strategy Guidance document on the intercalibration process (European Commission, 2011). In a first phase, the intercalibration exercise started in 2003 and extended until 2008. The results from this exercise were agreed on by Member States and then published in a Commission Decision, consequently becoming legally binding (EC, 2008). A second intercalibration phase extended from 2009 to 2012, and the results from this exercise were agreed on by Member States and laid down in a new Commission Decision (EC, 2013) repealing the previous decision. Member States should apply the results of the intercalibration exercise to their national classification systems in order to set the boundaries between high and good status and between good and moderate status for all their national types. Annex 1 to this Decision sets out the results of the intercalibration exercise for which intercalibration is successfully achieved, within the limits of what is technically feasible at this point in time. The Technical report on the Water Framework Directive intercalibration describes in detail how the intercalibration exercise has been carried out for the water categories and biological quality elements included in that Annex. The Technical report is organized in volumes according to the water category (rivers, lakes, coastal and transitional waters), Biological Quality Element and Geographical Intercalibration group. This volume addresses the intercalibration of the cross-GIG phytobenthos ecological assessment methods.

Type: Report
Title: Water Framework Directive Intercalibration Technical Report: Lake phytobenthos ecological assessment methods
Open access status: An open access version is available from UCL Discovery
Publisher version: http://ies.jrc.ec.europa.eu/
Additional information: This version is the version of record. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: WFD, Intercalibration, lakes, diatoms, ecological assessment, phytobenthios
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL SLASH
UCL > Provost and Vice Provost Offices > UCL SLASH > Faculty of S&HS
UCL > Provost and Vice Provost Offices > UCL SLASH > Faculty of S&HS > Dept of Geography
URI: https://discovery.ucl.ac.uk/id/eprint/1501136
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