Signal crayfish (Pacifastacus leniusculus) is introduced to Sweden from North America. Signal crayfish carry crayfish plague is fatal for crayfish, which in many places exterminated this. The signal crayfish is currently the most common cancer in southern Sweden. Discontinuation of crayfish requires the permission of the County Administrative Board.
Most efficient fishing methods
Information below is based upon thousands of real catch reports from the past two years.