European Rudd (Scardinius erythrophthalmus)
Where did European rudd come from?
European ruddCredit: John Lyons, Wisconsin Dept. of Natural Resources
Why is it a problem?
- 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.
How do European rudd spread?
- 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 we control European rudd?
- Rudd have been introduced by sport fishers in many bodies of water.
- They are also able to disperse within connected water bodies.
- 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.