European Rudd (Scardinius erythrophthalmus)

European rudd

Credit: John Lyons, Wisconsin Dept. of Natural Resources
Where did European rudd come from?
  • The European rudd is native to Europe and middle Asia.
  • The European rudd has been reported in at least 22 states.
  • It has also been reported in Canada, Morocco, New Zealand, Spain and Tunisia.
Why is it a problem?
  • European rudd are voracious eaters, and through their consumption of aquatic plants, they can out-compete native species for food.
  • Rudd may be putting vulnerable native aquatic plant communities at risk.
How do European rudd spread?
  • Rudd have been introduced by sport fishers in many bodies of water.
  • They are also able to disperse within connected water bodies.
How do we control European rudd?
  • Some studies have shown that fine-mesh monofilament gill can be potentially viable way of eliminating them.

For more photos and information about the European rudd, see the Wisconsin Fish Identification tool.