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What Makes a Screen to a Fish Protection Screen?

The functional components of a fish protection system

Publication
Citation

Wagner, Falko 2021: What makes a screen to a fish protection screen? The functional components of a fish protection system. Jena: Institute of Aquatic Ecology and Fish Biology, IGF Jena.

This fact sheet examines the functional elements of a fish protection system and explains when a rake is a fish protection rake. The fact sheet "What makes a screen to a fish protection screen" is available for download.

The key messages of Fact Sheet No. 05 are:

  • A fish protection system must provide three functions: Blocking, guiding and transferring.
  • Fish protection screens and bypasses form a functional unit in fish protection systems. Screens without bypasses or bypasses without a suitable screen do not constitute a protection system.
  • Horizontally angled fish protection screens guide fish across the entire water column to the bypass. The fish can remain in their natural swimming horizon.
  • Vertically angled fish protection screens can guide fish to bypass inlets or collection devices near the surface across the entire width of the turbine inlet.

More content from this project

Languages
German
English
Authorship
Falko Wagner (Institut für Gewässerökologie & Fischereibiologie Jena)
Credits

Graphic design and layout: Jennifer Rahn
Editing: Melanie Kemper

Funding
Year
Dimension
13 pp.
Project
Project ID
Keywords
Water Framework Directive, WFD, river, nature conservation, biodiversity, energy, hydropower, fish, migration, watercourse, connectivity, restoration, hydromorphology, protection

Source URL: https://www.ecologic.eu/18193