Eurasian Ruffe

Scientific name: Gymnocephalus cernuus (Linnaeus, 1758)

Synonyms: Acerina cernua (Linnaeus, 1758), Acerina czekanowskii (Dybowski, 1874), Acerina fischeri (Eichwald, 1873), Acerina vulgaris (Cuvier in Cuvier and Valenciennes, 1829), Perca cernua (Linnaeus, 1758)

Common name: Eurasian ruffe

Native To: Northern Europe and Asia (Fuller et al. 2012)

Date of U.S. Introduction: 1986 (Fuller et al. 2012)

Images: Invasive.org and Google

Means of Introduction: Possibly via ballast water (Fuller et al. 2012)

Impact: Competes with native species (Fuller et al. 2012)

Current U.S. Distribution: Great Lakes (NAS Database map)

Management Plans: Aquatic Species / Ruffe

Selected Internet Resources:

• Federal Government
• State Government
• University/Academic
• International
• Organizations

Ruffe (Gymnocephalus cernuus)
Aquatic Nuisance Species Task Force.
Identification/Description; Photographs; Introduction History; Impacts; Habitat; Controls

Gymnocephalus cernuus
Integrated Taxonomic Information System.
Taxonomy

Ruffe - Gymnocephalus cernuus - Aquatic Nuisance Species Research Program (PDF | 330 KB)
DOD. USACE. Engineer Research and Development Center. Environmental Laboratory.
Taxonomy; Identification/Description; Photographs; Impacts; Life Cycle; Distribution; Controls; Special Note: References

Gymnocephalus cernuus Article Citation Search - AGRICOLA Database
USDA. National Agricultural Library.
Research; Special Note: NAL Catalog Search (resources)

Gymnocephalus cernuus - Nonindigenous Aquatic Species Database
DOI. USGS. Southeast Ecological Science Center.
Identification/Description; Photographs; Introduction History; Impacts; Distribution; Special Note: Distribution maps and collection information (State and County)

Eurasian Ruffe
DOI. USGS. Great Lakes Science Center.
Photographs; Introduction History; Impacts; Controls

Eurasian Ruffe
DOI. USGS. Upper Midwest Environmental Sciences Center.
Identification/Description; Photographs; Introduction History; Impacts; Habitat; Distribution; Research

Aquatic Invasive Species: Ruffe (Oct 2005; PDF | 162 KB)
Indiana Department of Natural Resources.
Identification/Description; Photographs; Introduction History; Impacts; Life Cycle; Distribution; Dispersion; Controls

Ruffe Fact Sheet (PDF | 53 KB)
Iowa Department of Natural Resources.
Identification/Description; Illustrations; Introduction History; Impacts; Distribution

Ruffe - Field Guide to Invasive Plants and Animals
Minnesota Department of Natural Resources. Ecological Services Division.
Identification/Description; Photographs; Illustrations; Introduction History; Impacts; Dispersion

Eurasian Ruffe
Ohio Department of Natural Resources. Wildlife.
Illustrations; Distribution; Controls

Ruffe - Literature Review (PDF | 107 KB)
Wisconsin Department of Natural Resources.
Identification/Description; Photographs; Introduction History; Legal Aspects

Eurasian Ruffe and Ruffe: A New Threat to our Fisheries (PDF | 259 KB)
Minnesota Sea Grant.
Identification/Description; Photographs; Illustrations; Introduction History; Impacts; Controls; Special Note: Includes contact information

Ruffe - Exotic Aquatics on the Move
National Sea Grant Network and Geographic Education Alliances.
Identification/Description; Photographs; Introduction History; Impacts; Distribution; Controls

Ruffe - Introduced Species Summary Project
Columbia University. Center for Environmental Research and Conservation.
Taxonomy; Identification/Description; Photographs; Introduction History; Impacts; Life Cycle; Habitat; Distribution; Controls

Ruffe - National Aquatic Nuisance Species Clearinghouse
New York Sea Grant.
Taxonomy; Identification/Description; Introduction History; Impacts; Life Cycle; Habitat; Controls; Research

Eurasian Ruffe (PDF | 364 KB)
Pennsylvania State University. Pennsylvania Sea Grant.
Identification/Description; Photographs; Introduction History; Impacts; Distribution

Ruffe - Fish of the Great Lakes
Wisconsin Sea Grant.
Identification/Description; Photographs; Introduction History; Life Cycle; Habitat; Distribution; Legal Aspects

Gymnocephalus cernuus - Invasive Species Compendium
Centre for Agricultural Bioscience International (CABI).
Taxonomy; Identification/Description; Photographs; Impacts; Life Cycle; Habitat; Distribution; Controls

Ruffe - Species Summary
FishBase.org.
Taxonomy; Identification/Description; Photographs; Life Cycle; Habitat; Distribution; Dispersion

Ruffe
Ontario Federation of Anglers and Hunters (Canada).
Identification/Description; Illustrations; Impacts; Distribution

Gymnocephalus cernuus (fish) - ISSG Global Invasive Species Database
World Conservation Union. Invasive Species Specialist Group.
Identification/Description; Impacts; Habitat; Distribution; Dispersion; Controls

Ruffe in the Great Lakes Region
Great Lakes Information Network.
Identification/Description; Photographs; Introduction History; Impacts; Life Cycle; Special Note: Includes links to other Web sites

Eurasian Ruffe
Tip of the Mitt Watershed Council (Michigan).
Identification/Description; Photographs; Illustrations; Introduction History; Impacts

Citations

Fuller, P., G. Jacobs, J. Larson, and A. Fusaro. 2012. Gymnocephalus cernua. USGS Nonindigenous Aquatic Species Database, Gainesville, FL.