Gymnocephalus cernua
Gymnocephalus cernua
(Ruffe)
Fishes
Exotic
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110 results for Gymnocephalus cernua (Ruffe)
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Page:12345
Specimen IDStateCountyLocalityYear HUC Number What's this? Drainage nameStatus
1565570 MIHoughton[No locality description provided]2014 04020103 Keweenaw Peninsulaestablished
1610399 MIHoughton[No locality description provided]2017 04020103 Keweenaw Peninsulaestablished
1605821 MIHoughton[No locality description provided]2019 04020103 Keweenaw Peninsulaestablished
1401471 MIHoughtonKeweenaw Waterway2016 04020103 Keweenaw Peninsulaestablished
1401503 MIHoughtonKeweenaw Waterway2016 04020103 Keweenaw Peninsulaestablished
1401523 MIHoughtonKeweenaw Waterway2016 04020103 Keweenaw Peninsulaestablished
1401483 MIHoughtonKeweenaw Waterway2016 04020103 Keweenaw Peninsulaestablished
1401311 MIHoughtonKeweenaw Waterway2016 04020103 Keweenaw Peninsulaestablished
1401318 MIHoughtonKeweenaw Waterway2016 04020103 Keweenaw Peninsulaestablished
1401346 MIHoughtonKeweenaw Waterway2016 04020103 Keweenaw Peninsulaestablished
1401358 MIHoughtonKeweenaw Waterway2016 04020103 Keweenaw Peninsulaestablished
1401375 MIHoughtonKeweenaw Waterway2016 04020103 Keweenaw Peninsulaestablished
1401399 MIHoughtonKeweenaw Waterway2016 04020103 Keweenaw Peninsulaestablished
1401411 MIHoughtonKeweenaw Waterway2016 04020103 Keweenaw Peninsulaestablished
1401528 MIHoughtonKeweenaw Waterway2016 04020103 Keweenaw Peninsulaestablished
159146 MIHoughtonKeweenaw Waterway (Pike Bay) [near Houghton, MI]2004 04020103 Keweenaw Peninsulaestablished
238686 MIHoughtonKeweenaw Waterway (Pike Bay) [near Houghton, MI]2006 04020103 Keweenaw Peninsulaestablished
238687 MIHoughtonKeweenaw Waterway (Pike Bay) [near Houghton, MI]2006 04020103 Keweenaw Peninsulaestablished
159147 MIHoughtonKeweenaw Waterway (South Entry - Portage Lake) [S of Houghton, MI]2004 04020103 Keweenaw Peninsulaestablished
238688 MIHoughtonKeweenaw Waterway (South Entry - Portage Lake) [S of Houghton, MI]2006 04020103 Keweenaw Peninsulaestablished
238691 MIHoughtonKeweenaw Waterway (Torch Lake Canal) [Hubbell, MI]2006 04020103 Keweenaw Peninsulaestablished
1907402 MIHoughtonLake Superior, at Keweenaw Waterway, MI2016 04020103 Keweenaw Peninsula 
1907403 MIHoughtonLake Superior, at Keweenaw Waterway, MI2016 04020103 Keweenaw Peninsula 
1904761 MIHoughtonLake Superior, at Keweenaw Waterway, MI2016 04020103 Keweenaw Peninsula 
1904763 MIHoughtonLake Superior, at Keweenaw Waterway, MI2016 04020103 Keweenaw Peninsula 
Page:12345

Data Disclaimer: Number of records does not imply species abundance. This summary represent collection records only and may not reflect the actual distribution of established populations. These data are preliminary or provisional and are subject to revision. They are being provided to meet the need for timely best science. The data have not received final approval by the U.S. Geological Survey (USGS) and are provided on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from the authorized or unauthorized use of the data.

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The data represented on this site vary in accuracy, scale, completeness, extent of coverage and origin. It is the user's responsibility to use these data consistent with their intended purpose and within stated limitations. We highly recommend reviewing metadata files prior to interpreting these data.

Citation information: U.S. Geological Survey. [2026]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [4/10/2026].

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For general information and questions about the database, contact Wesley Daniel. For problems and technical issues, contact Matthew Neilson.