Gymnocephalus cernua
Gymnocephalus cernua
(Ruffe)
Fishes
Exotic
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13 results for Gymnocephalus cernua (Ruffe)
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Specimen IDStateCountyLocalityYear HUC Number What's this? Drainage nameStatus
35377 MIGogebicBlack River, a tributary to Lake Superior, just upstream from the mouth1994 04020101 Black-Presque Isleestablished
35378 MIOntonagonOntonagon River, a tributary of Lake Superior, just upstream from the mouth1994 04020102 Ontonagonestablished
46204 WIAshlandLake Superior in Chequamegon Bay near Ashland, WI1994 04180000 Lake Superiorestablished
46205 WIAshlandLake Superior in Chequamegon Bay near Ashland, WI1994 04180000 Lake Superiorestablished
46206 WIAshlandLake Superior in Chequamegon Bay near Ashland, WI1994 04180000 Lake Superiorestablished
164463 WIDouglasLake Superior in St. Louis Bay, near the Blatnick Bridge, Wisconsin waters, NE shore of Conners Point, Superior, WI1994 04180000 Lake Superiorestablished
164459 WIDouglasLake Superior, Superior Harbor, Superior1994 04010201 St. Louisestablished
164461 WIDouglasLake Superior, Superior Harbor, Superior1994 04010201 St. Louisestablished
164462 WIDouglasLake Superior, Superior Harbor, Superior1994 04010201 St. Louisestablished
263288 WIIronLake Superior at Saxon Harbor1994 04180000 Lake Superiorestablished
46199 WIIronLake Superior at Saxon Harbor (a marina with breakwalls)1994 04180000 Lake Superiorestablished
263289 WIIronLake Superior at the mouth of the Oronto River1994 04010302 Bad-Montrealestablished
46209 WIIronOronto Creek, (Lake Superior) north of Saxon, WI1994 04010302 Bad-Montrealestablished

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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Citation information: U.S. Geological Survey. [2026]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [2/23/2026].

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