The map shows the results of the European Fish Index (EFI+) for a selection of sites from the EFI+ project database and highlights the ecological status of 2,948 sites based on the composition of the observed fish assemblage.
see also:
EFI+ Consortium (2007). Improvement and spatial extension of the European Fish Index (EFI+), D1.1 – D1.3, Lists and descriptions of sampling methods, type of fish data, environmental variables and pressure variables [online]. (link)
EFI+ Consortium (2009). Manual for the application of the new European Fish Index – EFI+, Improvement and spatial extension of the European Fish Index [online]. (link)
with support provided by: EU Sixth Framework Programme EFI+ project
Florian Pletterbauer 
, Andreas Melcher & Stefan Schmutz
Florian Pletterbauer, Andreas Melcher & Stefan Schmutz
Institute of Hydrobiology and Aquatic Ecosystem Management
Department of Water, Atmosphere and Environment
BOKU – University of Natural Resources and Life Sciences
Max Emanuel-Straße 17, 1180 Vienna, Austria
website: www.wau.boku.ac.at
EFI+ was developed during the 6th framework programme project "EFI+", contract number 044096.
