Collection and evaluation of ecological data for rivers and lakes (application of directive 2000/60/E.U.) The project was carried out on behalf the Ministry of Development for the purposes of national preparation for the implementation of the Water Framework Directive. The goal of the project was to assess the quality and adequacy of the existing biological data on Greek lakes and rivers and the capacity to develop tools for ecological status assessment. Biological data for rivers and lakes that refer to systematic distribution, abundance and species ecology were collected and recorded for four groups of organisms, which consist the biocriteria for ecological classification according to the WFD: benthic macroinvertabrates, fish, plankton, macrophytes and phytobenthos. Moreover the existing literature for these groups of organisms was gathered, analysed and evaluated.

Final Report