The issue of fish protection and downstream fish migration is discussed intensively - even controversially - between and within the individual disciplines and areas of competence, both from a technical and an environmental policy perspective. The German Participatory Forum on Fish Protection and Downstream Migration has been dedicated to this discussion since 2012. This report, which concludes the German Participatory Forum on Fish Protection and Downstream Migration summarizes a selection of key issues from the forum's workshops across six central topics.

This infographic shows, color-coded for the three developmental stages of domestic fish, body proportion-based bar spacing of rakes that can prevent fish from swimming into the high-risk areas.

This report summarizes the results of the Hydromorphology workshop series (2008, 2012, 2016, 2021) of the German Federal Environment Agency in the form of a synthesis.

The illustration exemplifies the derivation of the study parameters in field studies for the determination of the site injury rate. It is part of a fact sheet on fish protection and downstream fish migration measures.

This illustration provides an overview of concrete fish conservation measures and targets in German federal states. It is part of a fact sheet on fish protection and downstream fish migration measures.

This illustration shows the group and individual approach to quantifying passage-related injuries at a hydropower site. It is part of a fact sheet on primary injury to fish at hydropower sites.

This illustration shows advantages and disadvantages of using naturally downstream migrating fish or an experimental approach to determine the mortality and injury risk. It is part of a fact sheet on primary injury to fish at hydropower sites.

This illustration shows a comparison of the injuries of a common Nase before and after the passage of a hydropower site. It is part of a fact sheet on primary injury to fish at hydropower sites.

This infographic provides an overview of the Measures for fish protection and downstream fish migration in Europe. The infographic is part of a fact sheet on fish protection targets in Europe.

This infographic provides an overview of the prevalence of strategic concepts for hydropower utilisation and general methods or recommendations for ensuring downstream continuity in Europe. The infographic is part of a fact sheet on fish protection targets in Europe.

The illustration provides an overview of the information structure of the Atlas sites. It is part of a fact sheet on fish protection and downstream fish migration measures.

This infographic shows the permeability for juveniles and adults of different fish species on 20- and 10 mm screens. The infographic is part of the fact sheet "What makes a screen to a fish protection screen? The functional components of a fish protection system."

This infographic evaluates the information on the aspects of the monitoring studies (multiple answers possible) at the sites entered in the Atlas of Fish Protection & Downstream Fishways. The infographic is part of a fact sheet on fish protection and downstream fish migration measures.

For 65 sites, the rake bar spacing is given in the atlas. This is registered in five classes. This infographic visualizes the information. The infographic is part of a fact sheet on fish protection and downstream fish migration measures.

This schema shows the three functions of a fish protection system: blocking, guiding, transferring. The infographic is part of the fact sheet "What makes a screen to a fish protection screen? The functional components of a fish protection system."