Gymnocephalus cernua
Gymnocephalus cernua
(Ruffe)
Fishes
Exotic
Collection Info
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Species Profile
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25 results for Gymnocephalus cernua (Ruffe)
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Specimen IDStateCountyLocalityYear HUC Number What's this? Drainage nameStatus
35613 MIOntonagonOntonagon River1998 04020102 Ontonagonestablished
156383 MIOntonagonOntonagon River2000 04020102 Ontonagonestablished
156384 MIOntonagonOntonagon River2000 04020102 Ontonagonestablished
156385 MIOntonagonOntonagon River2000 04020102 Ontonagonestablished
156409 MIOntonagonOntonagon River2001 04020102 Ontonagonestablished
156410 MIOntonagonOntonagon River2001 04020102 Ontonagonestablished
156411 MIOntonagonOntonagon River2001 04020102 Ontonagonestablished
159025 MIOntonagonOntonagon River2002 04020102 Ontonagonestablished
159009 MIOntonagonOntonagon River2002 04020102 Ontonagonestablished
159010 MIOntonagonOntonagon River2002 04020102 Ontonagonestablished
159026 MIOntonagonOntonagon River2002 04020102 Ontonagonestablished
159011 MIOntonagonOntonagon River2002 04020102 Ontonagonestablished
159077 MIOntonagonOntonagon River2003 04020102 Ontonagonestablished
159079 MIOntonagonOntonagon River2003 04020102 Ontonagonestablished
159118 MIOntonagonOntonagon River2003 04020102 Ontonagonestablished
159120 MIOntonagonOntonagon River2003 04020102 Ontonagonestablished
159082 MIOntonagonOntonagon River2003 04020102 Ontonagonestablished
159083 MIOntonagonOntonagon River2003 04020102 Ontonagonestablished
159119 MIOntonagonOntonagon River2003 04020102 Ontonagonestablished
159085 MIOntonagonOntonagon River2003 04020102 Ontonagonestablished
159078 MIOntonagonOntonagon River2003 04020102 Ontonagonestablished
35362 MIOntonagonOntonagon River [near mouth]1999 04020102 Ontonagonestablished
35363 MIOntonagonOntonagon River [near mouth]1999 04020102 Ontonagonestablished
159145 MIOntonagonOntonagon River [near mouth]2004 04020102 Ontonagonestablished
35378 MIOntonagonOntonagon River, a tributary of Lake Superior, just upstream from the mouth1994 04020102 Ontonagonestablished

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.

Disclaimer:

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 [1/18/2026].

Contact us if you are using data from this site for a publication to make sure the data are being used appropriately and for potential co-authorship if warranted.

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