Barriers to Stop the Spread of Invasive Crayfish
Raphael Krieg (University of Applied Sciences and Arts Northwestern Switzerland)
Signal Crayfish Virtual Sympsoium
12 Apr 2024
Crayfish barriers are the only way to stop the non-anthropogenic spread of non-native crayfish species. Various barriers have been installed in Switzerland in recent years. In addition, field trials have been carried out to check their effectiveness and fish passability.
Armin Zenker and Raphael Krieg, are founders of the “Swiss Coordination Office for Crayfish” on behalf of the Federal Office for the Environment in Switzerland, which campaigns for the protection of native crayfish species. As part of their activities, they have carried out various scientific projects on crayfish barriers, population genetic studies and work closely with local fisheries authorities.