GLANSIS

Gymnocephalus cernua

Ruffe

Collection Information for Gymnocephalus cernua

Results limited to HUC #04010301.
To see the collection list for the entire Great Lakes region, click here.
To see the collection list for the entire United States, click here.
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Specimen ID	State	County	Locality	Year	HUC Number	Drainage Name	Status
158998	WI	Douglas	Amnicon River	2002	04010301	Beartrap-Nemadji	established
158999	WI	Douglas	Amnicon River	2002	04010301	Beartrap-Nemadji	established
159000	WI	Douglas	Amnicon River	2002	04010301	Beartrap-Nemadji	established
159001	WI	Douglas	Amnicon River	2002	04010301	Beartrap-Nemadji	established
156401	WI	Douglas	Amnicon River	2001	04010301	Beartrap-Nemadji	established
156376	WI	Douglas	Amnicon River	2000	04010301	Beartrap-Nemadji	established
159016	WI	Douglas	Amnicon River	2002	04010301	Beartrap-Nemadji	established
156416	WI	Douglas	Amnicon River	2001	04010301	Beartrap-Nemadji	established
159110	WI	Douglas	Amnicon River	2003	04010301	Beartrap-Nemadji	established
156399	WI	Douglas	Amnicon River	2001	04010301	Beartrap-Nemadji	established
156400	WI	Douglas	Amnicon River	2001	04010301	Beartrap-Nemadji	established
156374	WI	Douglas	Amnicon River	2000	04010301	Beartrap-Nemadji	established
156375	WI	Douglas	Amnicon River	2000	04010301	Beartrap-Nemadji	established
46579	WI	Douglas	Amnicon River	1998	04010301	Beartrap-Nemadji	established
156390	WI	Douglas	Amnicon River	2000	04010301	Beartrap-Nemadji	established
46611	WI	Douglas	Amnicon River	1998	04010301	Beartrap-Nemadji	established
46580	WI	Douglas	Amnicon River	1998	04010301	Beartrap-Nemadji	established
46581	WI	Douglas	Amnicon River	1998	04010301	Beartrap-Nemadji	established
46582	WI	Douglas	Amnicon River	1998	04010301	Beartrap-Nemadji	established
159070	WI	Douglas	Amnicon River [near mouth, ~5 mi E of Superior, WI]	2003	04010301	Beartrap-Nemadji	established
159142	WI	Douglas	Amnicon River [near mouth, ~5 mi E of Superior, WI]	2004	04010301	Beartrap-Nemadji	established
46197	WI	Douglas	Amnicon River [near mouth, ~5 mi E of Superior, WI]	1999	04010301	Beartrap-Nemadji	established
46336	WI	Douglas	Anmicon River, at mouth, at Lake Superior	1991	04010301	Beartrap-Nemadji	established
46184	WI	Douglas	Brule River, a trib of so. L. Superior about 10 miles east of Superior, WI	1991	04010301	Beartrap-Nemadji	established
46337	WI	Douglas	Brule River, at mouth	1991	04010301	Beartrap-Nemadji	established
156403	WI	Bayfield	Flag River [near Port Wing, WI]	2001	04010301	Beartrap-Nemadji	established
156404	WI	Bayfield	Flag River [near Port Wing, WI]	2001	04010301	Beartrap-Nemadji	established
159075	WI	Bayfield	Flag River [near Port Wing, WI]	2003	04010301	Beartrap-Nemadji	established
46627	WI	Bayfield	Flag River [near Port Wing, WI]	1999	04010301	Beartrap-Nemadji	established
46629	WI	Bayfield	Flag River [near Port Wing, WI]	1999	04010301	Beartrap-Nemadji	established
159003	WI	Bayfield	Flag River [near Port Wing, WI]	2002	04010301	Beartrap-Nemadji	established
156402	WI	Bayfield	Flag River [near Port Wing, WI]	2001	04010301	Beartrap-Nemadji	established
159004	WI	Bayfield	Flag River [near Port Wing, WI]	2002	04010301	Beartrap-Nemadji	established
159002	WI	Bayfield	Flag River [near Port Wing, WI]	2002	04010301	Beartrap-Nemadji	established
156405	WI	Bayfield	Flag River [near Port Wing, WI]	2001	04010301	Beartrap-Nemadji	established
156377	WI	Bayfield	Flag River [near Port Wing, WI]	2000	04010301	Beartrap-Nemadji	established
156378	WI	Bayfield	Flag River [near Port Wing, WI]	2000	04010301	Beartrap-Nemadji	established
156379	WI	Bayfield	Flag River [near Port Wing, WI]	2000	04010301	Beartrap-Nemadji	established
46630	WI	Bayfield	Flag River [near Port Wing, WI]	1999	04010301	Beartrap-Nemadji	established
46631	WI	Bayfield	Flag River [near Port Wing, WI]	1999	04010301	Beartrap-Nemadji	established
159006	WI	Bayfield	Iron River	2002	04010301	Beartrap-Nemadji	established
159076	WI	Bayfield	Iron River	2003	04010301	Beartrap-Nemadji	established
156406	WI	Bayfield	Iron River	2001	04010301	Beartrap-Nemadji	established
156407	WI	Bayfield	Iron River	2001	04010301	Beartrap-Nemadji	established
156408	WI	Bayfield	Iron River	2001	04010301	Beartrap-Nemadji	established
156380	WI	Bayfield	Iron River	2000	04010301	Beartrap-Nemadji	established
156381	WI	Bayfield	Iron River	2000	04010301	Beartrap-Nemadji	established
156382	WI	Bayfield	Iron River	2000	04010301	Beartrap-Nemadji	established
159005	WI	Bayfield	Iron River	2002	04010301	Beartrap-Nemadji	established
159007	WI	Bayfield	Iron River	2002	04010301	Beartrap-Nemadji	established
46635	WI	Bayfield	Iron River [near mouth]	1999	04010301	Beartrap-Nemadji	established
46632	WI	Bayfield	Iron River [near mouth]	1999	04010301	Beartrap-Nemadji	established
46633	WI	Bayfield	Iron River [near mouth]	1999	04010301	Beartrap-Nemadji	established
46634	WI	Bayfield	Iron River [near mouth]	1999	04010301	Beartrap-Nemadji	established
159143	WI	Bayfield	Iron River [near mouth]	2004	04010301	Beartrap-Nemadji	established
46368	WI	Bayfield	Iron River, (from the mouth upstream about 1/2 mile near Hwy 13 bridge) southwest shore of Lake Superior about 30 miles east of Superior, WI	1992	04010301	Beartrap-Nemadji	established
644330	WI	Douglas	Amnicon River	2014	04010301	Beartrap-Nemadji	established
159112	WI	Bayfield	Lake Superior at Roman Point [~2.5 mi NW of Cornucopia]	2003	04010301	Beartrap-Nemadji	established
46370	WI	Douglas	Middle River, near Brule, WI	1991	04010301	Beartrap-Nemadji	established
46211	WI	Douglas	Middle River (near Wentworth, WI)	1996	04010301	Beartrap-Nemadji	established
46604	WI	Bayfield	Iron River	1998	04010301	Beartrap-Nemadji	established
1247607	WI	Ashland	Lake Superior, Chequamegon Bay	2015	04010301	Beartrap-Nemadji	established
1247608	WI	Ashland	Lake Superior, Chequamegon Bay	2015	04010301	Beartrap-Nemadji	established
792938	WI	Bayfield	Iron River at RM 0.3	1992	04010301	Beartrap-Nemadji	established
792939	WI	Bayfield	Flag River at RM 0.2	1992	04010301	Beartrap-Nemadji	established
792940	WI	Bayfield	Sand River at RM 0.3	1992	04010301	Beartrap-Nemadji	established
792943	WI	Douglas	Allouez Bay at RM 1.5	1992	04010301	Beartrap-Nemadji	established
792944	WI	Douglas	Bois Brule River at RM 1	1992	04010301	Beartrap-Nemadji	established
792948	WI	Bayfield	Flag River at RM 0.2	1992	04010301	Beartrap-Nemadji	established
792960	WI	Douglas	[No specific locality provided]	1995	04010301	Beartrap-Nemadji	established
792961	WI	Douglas	[No specific locality provided]	1999	04010301	Beartrap-Nemadji	established
792963	WI	Douglas	[No specific locality provided]	2001	04010301	Beartrap-Nemadji	established
792967	WI	Douglas	[No specific locality provided]	2002	04010301	Beartrap-Nemadji	established
792969	WI	Douglas	Dutchman Creek	2004	04010301	Beartrap-Nemadji	established
792970	WI	Douglas	Amnicon River	2005	04010301	Beartrap-Nemadji	established
792971	WI	Douglas	Poplar River	2005	04010301	Beartrap-Nemadji	established
1401307	WI	Ashland	Chequamegon Bay	2015	04010301	Beartrap-Nemadji	established
1401337	WI	Bayfield	Sand River	2014	04010301	Beartrap-Nemadji	established
1401342	WI	Ashland	Chequamegon Bay	2015	04010301	Beartrap-Nemadji	established
1401386	WI	Bayfield	Sand River	2014	04010301	Beartrap-Nemadji	established
1401431	WI	Bayfield	Flag River	2012	04010301	Beartrap-Nemadji	established
1401437	WI	Douglas	St. Louis River	2014	04010301	Beartrap-Nemadji	established
1401444	WI	Bayfield	Flag River	2012	04010301	Beartrap-Nemadji	established
1401455	WI	Bayfield	Flag River	2012	04010301	Beartrap-Nemadji	established
1401501	WI	Bayfield	Flag River	2012	04010301	Beartrap-Nemadji	established
1401513	WI	Ashland	Chequamegon Bay	2010	04010301	Beartrap-Nemadji	established
1401545	WI	Ashland	Chequamegon Bay	2014	04010301	Beartrap-Nemadji	established
1401583	WI	Ashland	Chequamegon Bay	2013	04010301	Beartrap-Nemadji	established
1605666	WI	Ashland	[No locality description provided]	2015	04010301	Beartrap-Nemadji	established
1554513	WI	Douglas	[No locality description provided]	2010	04010301	Beartrap-Nemadji	established
792941	WI	Douglas	[No specific locality provided]	1992	04010301	Beartrap-Nemadji	established
792949	WI	Bayfield	Iron River at RM 0.3	1992	04010301	Beartrap-Nemadji	established
792950	WI	Bayfield	Siskiwit River at RM 0.1	1993	04010301	Beartrap-Nemadji	established
792951	WI	Bayfield	Raspberry River at RM 0.1	1993	04010301	Beartrap-Nemadji	established
792952	WI	Douglas	Amnicon River at RM 0.4	1993	04010301	Beartrap-Nemadji	established
792954	WI	Bayfield	Lost Creek Slough at RM 0.1	1993	04010301	Beartrap-Nemadji	established
792957	WI	Douglas	Middle River at RM 1	1993	04010301	Beartrap-Nemadji	established
792959	WI	Douglas	[No specific locality provided]	1995	04010301	Beartrap-Nemadji	established
792972	WI	Douglas	Lake Superior	2008	04010301	Beartrap-Nemadji	established
792974	WI	Ashland	[No specific locality provided]	2012	04010301	Beartrap-Nemadji	established
792975	WI	Douglas	[No specific locality provided]	2012	04010301	Beartrap-Nemadji	established
792977	WI	Douglas	[No specific locality provided]	2012	04010301	Beartrap-Nemadji	established
849263	WI	Douglas	mouth of unnamed creek just E of Bear Creek mouth at Allouez Bay	2013	04010301	Beartrap-Nemadji	established
849329	WI	Douglas	mouth of unnamed creek just E of Bear Creek mouth at Allouez Bay	2011	04010301	Beartrap-Nemadji	established
586830	WI	Douglas	[No locality description provided by MARIS]	2005	04010301	Beartrap-Nemadji	established
586831	WI	Douglas	[No locality description provided by MARIS]	1987	04010301	Beartrap-Nemadji	established
586832	WI	Douglas	[No locality description provided by MARIS]	1989	04010301	Beartrap-Nemadji	established
586833	WI	Douglas	[No locality description provided by MARIS]	1990	04010301	Beartrap-Nemadji	established
586834	WI	Douglas	[No locality description provided by MARIS]	2004	04010301	Beartrap-Nemadji	established
586835	WI	Douglas	[No locality description provided by MARIS]	2005	04010301	Beartrap-Nemadji	established
586828	WI	Douglas	[No locality description provided by MARIS]	1990	04010301	Beartrap-Nemadji	established
644336	WI	Douglas	Amnicon River	2014	04010301	Beartrap-Nemadji	established
644337	WI	Douglas	Amnicon River	2014	04010301	Beartrap-Nemadji	established
644335	WI	Douglas	Amnicon River	2014	04010301	Beartrap-Nemadji	established
644332	WI	Douglas	Poplar River	2014	04010301	Beartrap-Nemadji	established
46623	WI	Douglas	Amnicon River [near mouth, ~5 mi E of Superior, WI]	1999	04010301	Beartrap-Nemadji	established
46624	WI	Douglas	Amnicon River [near mouth, ~5 mi E of Superior, WI]	1999	04010301	Beartrap-Nemadji	established
46636	WI	Douglas	Middle River [near mouth]	1999	04010301	Beartrap-Nemadji	established
159144	WI	Bayfield	Flag River, near mouth	2004	04010301	Beartrap-Nemadji	established
46202	WI	Douglas	Amnicon River [near mouth, ~5 mi E of Superior, WI]	1988	04010301	Beartrap-Nemadji	established
156394	WI	Douglas	Middle River	2000	04010301	Beartrap-Nemadji	established
46605	WI	Bayfield	Iron River	1998	04010301	Beartrap-Nemadji	established
46606	WI	Bayfield	Iron River	1998	04010301	Beartrap-Nemadji	established
46607	WI	Bayfield	Iron River	1998	04010301	Beartrap-Nemadji	established
46193	WI	Bayfield	Siskiwit River, southwest shore of Lake Superior near Cornucopia, WI	1993	04010301	Beartrap-Nemadji	established
46194	WI	Bayfield	Iron River, (upstream and downstream for 1/4 mile from the Hwy 13 bridge) southwest shore of Lake Superior about 30 miles east of Superior, WI	1992	04010301	Beartrap-Nemadji	established
46338	WI	Bayfield	Iron River, at mouth, at Lake Superior	1991	04010301	Beartrap-Nemadji	established
46210	WI	Ashland	Kakagon River, (Lake Superior) about 7 miles northeast of Ashland, WI	1995	04010301	Beartrap-Nemadji	established
159111	WI	Douglas	Amnicon North	2003	04010301	Beartrap-Nemadji	established
46189	WI	Bayfield	Red Cliff Creek, trib of Brandywine Creek (100 yards up from the mouth) on the southw4est shore of Lake Superior 8 miles north of Bayfield, WI	1993	04010301	Beartrap-Nemadji	established
46190	WI	Bayfield	Sioux River (100 yards from mouth), southwest shore of Lake Superior about 5 miles north of Washburn, WI	1993	04010301	Beartrap-Nemadji	established
46192	WI	Bayfield	Lost Creek Slough (50 yards from the mouth), southwest shore of Lake Superior 3 miles west of Cornucopia, WI	1993	04010301	Beartrap-Nemadji	established
159113	WI	Bayfield	Lake Superior, Sikiwit Bay (Squaw Pt.)	2003	04010301	Beartrap-Nemadji	established
46560	WI	Douglas	Amnicon River [near mouth, ~5 mi E of Superior, WI]	1999	04010301	Beartrap-Nemadji	established
46198	WI	Bayfield	Flag River, a trib on the southwest shore of Lake Superior near Herbster WI, at Port Wing Marina	1992	04010301	Beartrap-Nemadji	established
46200	WI	Bayfield	Flag River, a trib on the southwest shore of Lake Superior near Herbster WI, at Port Wing Marina	1992	04010301	Beartrap-Nemadji	established
1247598	WI	Ashland	Lake Superior, Chequamegon Bay	2015	04010301	Beartrap-Nemadji	established
1247605	WI	Ashland	Lake Superior, Chequamegon Bay	2015	04010301	Beartrap-Nemadji	established
1247606	WI	Ashland	Lake Superior, Chequamegon Bay	2015	04010301	Beartrap-Nemadji	established
159115	WI	Douglas	Brule River West	2003	04010301	Beartrap-Nemadji	established

Citation for this information:
U.S. Geological Survey, 2025, Gymnocephalus cernua: U.S. Geological Survey, Nonindigenous Aquatic Species Database, Gainesville, FL, https://nas.er.usgs.gov, Access Date: 12/11/2025