Data-limited diadromous species – review of European status

This report (i) indicates specific cases where changes in the status of diadromous species are occurring which are directly related to human impact and ecosystem changes, and (ii) reviews the current status of selected species based on existing national and international criteria. All data-limited diadromous species are not covered in this report. Therefore, it should only be used as an initial guidance for future work to cover possible data and management gaps. This report focuses mainly on species in the European area, and covers countries and species represented by WGDAM members.