SD Least Wanted.comAquatic invasive Species

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european rudd


Western and Central Europe


Rudd resemble native golden shiners but can be distinguished by the presence of scales that completely cover the belly (shiners lack a fully scaled belly).


These fish quickly outgrow predation making them of little use to predatory fish.

They have been known to hybridize with golden shiners which are a native prey fish of predators such as walleye or pike. Hybridization may have detrimental effects to the genetics of native shiner populations.

Range Expansion:

Rudd are very difficult to distinguish from native shiners. They are often misidentified and sold as bait.

South Dakota Distribution:
Asian Carp Distribution Map

Keep Aquatic Invasive Species Out of South Dakota's Waters


  • Remove aquatic plants and animals before leaving any waterbody.
  • Drain water from bait bucket, live well, bilge and motor before leaving any waterbody.
  • Dispose of unwanted bait, fish parts, and worms in the trash.
  • Spray/wash boat, trailer, and equipment with high pressure hot water on your way home or at home -OR- dry everything for at least 5 days.
  • Always report questionable species.


  • Never release live animals or plants - this includes all aquarium species, bait, pets or water garden plants. Do not release these into the wild. If you cannot find another home for animals, dispose of them in a trash can or bury them. Seal plants in plastic bags and dispose.


Because these hitchhikers can:

  • Reduce game fish populations
  • Ruin boat engines and jam steering equipment
  • Make lakes/rivers unusable by boaters and swimmers
  • Dramatically increase the operating costs of drinking water plants, power plants, dam maintenance, and industrial processes
  • Reduce native species
  • Degrade ecosystems
  • Affect human health
  • Reduce property values
  • Affect local economies of water-dependent communities.
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