This infographic shows examples of screen bar shapes for fish protection screens at hydropower sites. Small screen bar spacing for better fish protection also causes the screen to become clogged with debris more quickly, which can impair the operation of the hydropower plant. To counteract this, particularly flow-optimised, round, drop-shaped or Y-shaped screen bar shapes are used, as well as combinations of these shapes. Furthermore, high-performance screen cleaning is indispensable. The infographic is part of the fact sheet "Technical Functionality of Large Fish Protection Screens Confirmed in Practice."

The infographic is published under a creative commons license CC BY 4.0. That means it can be copied and redistributed in any medium or format and for any purpose as long as appropriate credit to the authors (Ecologic Institute, Ingenieurbüro Floecksmühle GmbH, Aachen) is given.