GLANSIS

Gymnocephalus cernua

Ruffe

Collection Information for Gymnocephalus cernua

Results limited to HUC #04180000.
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.
Results also available in (click to export table to spreadsheet)

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Specimen ID	State	County	Locality	Year	HUC Number	Drainage Name	Status
46185	WI	Bayfield	Bark Bay Slough, (southwest shore of Lake Superior) just east of Herbster, WI	1991	04180000	Lake Superior	established
46201	WI	Bayfield	Sand River, southwest shore of Lake Superior about 15 miles east of Cornucopia, WI, in the estuary 1/4 mile from the mouth	1992	04180000	Lake Superior	established
46371	WI	Bayfield	Raspberry River, (100 yards from the mouth) southwest shore of Lake Superior about 15 miles north of Bayfield, WI	1993	04180000	Lake Superior	established
263288	WI	Iron	Lake Superior at Saxon Harbor	1994	04180000	Lake Superior	established
46204	WI	Ashland	Lake Superior in Chequamegon Bay near Ashland, WI	1994	04180000	Lake Superior	established
46205	WI	Ashland	Lake Superior in Chequamegon Bay near Ashland, WI	1994	04180000	Lake Superior	established
46206	WI	Ashland	Lake Superior in Chequamegon Bay near Ashland, WI	1994	04180000	Lake Superior	established
46199	WI	Iron	Lake Superior at Saxon Harbor (a marina with breakwalls)	1994	04180000	Lake Superior	established
46213	WI	Ashland	Lake Superior at Bear Island of the Apostle Island Group	1997	04180000	Lake Superior	established
46601	WI	Bayfield	Flag River, a trib on the southwest shore of Lake Superior near Herbster WI, at Port Wing Marina	1998	04180000	Lake Superior	established
46614	WI	Bayfield	Chequamegon Bay	1998	04180000	Lake Superior	established
46602	WI	Bayfield	Flag River, a trib on the southwest shore of Lake Superior near Herbster WI, at Port Wing Marina	1998	04180000	Lake Superior	established
46583	WI	Bayfield	Chequamegon Bay (Kakagon River Estuary)	1998	04180000	Lake Superior	established
46592	WI	Bayfield	Chequamegon Bay, Lake Superior	1998	04180000	Lake Superior	established
46584	WI	Bayfield	Chequamegon Bay (Kakagon River Estuary)	1998	04180000	Lake Superior	established
46585	WI	Bayfield	Chequamegon Bay (Kakagon River Estuary)	1998	04180000	Lake Superior	established
46593	WI	Bayfield	Chequamegon Bay (2nd Landing)	1998	04180000	Lake Superior	established
46594	WI	Bayfield	Chequamegon Bay (2nd Landing)	1998	04180000	Lake Superior	established
46586	WI	Bayfield	Chequamegon Bay (Kakagon River Estuary)	1998	04180000	Lake Superior	established
46587	WI	Bayfield	Chequamegon Bay (Kakagon River Estuary)	1998	04180000	Lake Superior	established
46595	WI	Bayfield	Chequamegon Bay (2nd Landing)	1998	04180000	Lake Superior	established
46596	WI	Bayfield	Chequamegon Bay (2nd Landing)	1998	04180000	Lake Superior	established
46588	WI	Bayfield	Chequamegon Bay (Kakagon River Estuary)	1998	04180000	Lake Superior	established
46589	WI	Bayfield	Chequamegon Bay (Kakagon River Estuary)	1998	04180000	Lake Superior	established
46597	WI	Bayfield	Chequamegon Bay (2nd Landing)	1998	04180000	Lake Superior	established
46598	WI	Bayfield	Chequamegon Bay (2nd Landing)	1998	04180000	Lake Superior	established
46599	WI	Bayfield	Chequamegon Bay (2nd Landing)	1998	04180000	Lake Superior	established
46591	WI	Bayfield	Chequamegon Bay (Kakagon River Estuary)	1998	04180000	Lake Superior	established
46600	WI	Bayfield	Chequamegon Bay (2nd Landing)	1998	04180000	Lake Superior	established
46618	WI	Bayfield	Raspberry River [near mouth]	1998	04180000	Lake Superior	established
46616	WI	Bayfield	Raspberry River [near mouth]	1998	04180000	Lake Superior	established
46615	WI	Bayfield	Raspberry River [near mouth]	1998	04180000	Lake Superior	established
46619	WI	Bayfield	Raspberry River [near mouth]	1998	04180000	Lake Superior	established
46603	WI	Bayfield	Flag River, a trib on the southwest shore of Lake Superior near Herbster WI, at Port Wing Marina	1998	04180000	Lake Superior	established
46620	WI	Bayfield	Raspberry River [near mouth]	1998	04180000	Lake Superior	established
46617	WI	Bayfield	Raspberry River [near mouth]	1998	04180000	Lake Superior	established
46187	WI	Douglas	Lake Superior (Superior Entry-Bark Point)[Superior, WI]	1999	04180000	Lake Superior	established
46626	WI	Bayfield	Chequamegon Bay (Kakagon River Estuary)	1999	04180000	Lake Superior	established
46625	WI	Bayfield	Chequamegon Bay, Lake Superior	1999	04180000	Lake Superior	established
46644	WI	Ashland	Chequamegon Bay, Lake Superior	1999	04180000	Lake Superior	established
46639	WI	Bayfield	Raspberry River [near mouth]	1999	04180000	Lake Superior	established
156392	WI	Ashland	Chequamegon Bay, Lake Superior	2000	04180000	Lake Superior	established
156393	WI	Ashland	Chequamegon Bay, Lake Superior	2000	04180000	Lake Superior	established
156420	WI	Ashland	Chequamegon Bay (Sandcut) [Lake Superior]	2001	04180000	Lake Superior	established
156421	WI	Ashland	Chequamegon Bay (Pig Iron Dock) [Lake Superior]	2001	04180000	Lake Superior	established
156422	WI	Douglas	Lake Superior nearshore off Superior Entry (Station 17, N of Amnicon River)	2001	04180000	Lake Superior	established
156428	WI	Douglas	Lake Superior nearshore off Superior Entry (Station 99, NW of Amnicon River)	2001	04180000	Lake Superior	established
156426	WI	Douglas	Lake Superior nearshore off Superior Entry (Station 30, N of Dutch Creek)	2001	04180000	Lake Superior	established
156423	WI	Douglas	Lake Superior nearshore off Superior Entry (Station 18, N of Middle River)	2001	04180000	Lake Superior	established
156424	WI	Douglas	Lake Superior nearshore off Superior Entry (Station 19, NE of Poplar River)	2001	04180000	Lake Superior	established
156425	WI	Douglas	Lake Superior nearshore off Superior Entry (Station 25)	2001	04180000	Lake Superior	established
156427	WI	Douglas	Lake Superior nearshore off Superior Entry (Station 32)	2001	04180000	Lake Superior	established
156429	WI	Bayfield	Lake Superior nearshore off Iron River (Station 14)	2001	04180000	Lake Superior	established
156430	WI	Douglas	Lake Superior nearshore off Iron River (Station 15)	2001	04180000	Lake Superior	established
156431	WI	Bayfield	Lake Superior at Siskiwit Bay (Station 84)	2001	04180000	Lake Superior	established
156432	WI	Bayfield	Lake Superior at Siskiwit Bay (Station 84)	2001	04180000	Lake Superior	established
156433	WI	Bayfield	Lake Superior at Squaw Bay (Station 23)	2001	04180000	Lake Superior	established
156594	WI	Bayfield	Lake Superior at Bark Point [~ 8 mi. NE of Herbster, WI]	2002	04180000	Lake Superior	established
156595	WI	Bayfield	Lake Superior at Raspberry Island (Apostle Islands)	2002	04180000	Lake Superior	established
156597	WI	Ashland	Lake Superior at Stockton Island (Apostle Islands)	2002	04180000	Lake Superior	established
46166	WI	Douglas	St. Louis estuary and the Lake Superior Duluth Harbor	1987	04180000	Lake Superior	established
157539	WI	Bayfield	Apostle Islands National Lakeshore	1999	04180000	Lake Superior	established
159017	WI	Bayfield	Chequamegon Bay (Stations 313, 315,324)	2002	04180000	Lake Superior	established
159018	WI	Ashland	Chequamegon Bay (Station 27)	2002	04180000	Lake Superior	established
159019	WI	Ashland	Chequamegon Bay (Station 73)	2002	04180000	Lake Superior	established
159020	WI	Ashland	Chequamegon Bay (Station 73)	2002	04180000	Lake Superior	established
159021	WI	Bayfield	Chequamegon Bay (Houghton Point) (Station 54)	2002	04180000	Lake Superior	established
159022	WI	Ashland	Chequamegon Bay (Sandcut) [Lake Superior]	2002	04180000	Lake Superior	established
265702	WI	Bayfield	Lake Superior at Bark Point [~ 8 mi. NE of Herbster, WI]	2002	04180000	Lake Superior	established
265703	WI	Bayfield	Lake Superior at Raspberry Island (Apostle Islands)	2002	04180000	Lake Superior	established
265704	WI	Ashland	Lake Superior at Stockton Island (Apostle Islands)	2002	04180000	Lake Superior	established
159027	WI	Ashland	Lake Superior at Stockton Island (Apostle Islands)	2002	04180000	Lake Superior	established
159114	WI	Bayfield	Lake Superior at Bark Point West	2003	04180000	Lake Superior	established
159116	WI	Ashland	Chequamegon Bay, Lake Superior	2003	04180000	Lake Superior	established
159117	WI		Lake Superior, Apostle Islands waters	2003	04180000	Lake Superior	established
159121	WI	Bayfield	Lake Superior at Mawikwe Bay [vicinity of Apostle Islands National Lakeshore]	2003	04180000	Lake Superior	established
159122	WI	Douglas	Lake Superior, Superior-Entry, Superior, WI	2003	04180000	Lake Superior	established
164463	WI	Douglas	Lake Superior in St. Louis Bay, near the Blatnick Bridge, Wisconsin waters, NE shore of Conners Point, Superior, WI	1994	04180000	Lake Superior	established
164464	WI	Douglas	Lake Superior in St. Louis Bay, near the Blatnick Bridge, Wisconsin waters, NE shore of Conners Point, Superior, WI	1995	04180000	Lake Superior	established
261822	WI	Ashland	Lake Superior, Chequamegon Bay at Ashland by a coal dock	2008	04180000	Lake Superior	established
792965	WI	Ashland	[No specific locality provided]	2002	04180000	Lake Superior	established
792930	WI	Douglas	Superior Bay at RM 0.2	1989	04180000	Lake Superior	established
792933	WI	Douglas	Superior Bay at RM 0.2	1990	04180000	Lake Superior	established
792934	WI	Douglas	Allouez Bay at RM 0	1990	04180000	Lake Superior	established
792942	WI	Douglas	Allouez Bay at RM 0.6	1992	04180000	Lake Superior	established
792953	WI	Bayfield	Bark Bay Slough at RM 0.5	1993	04180000	Lake Superior	established
792955	WI	Bayfield	Red Cliff Creek at RM 0.1	1993	04180000	Lake Superior	established
792956	WI	Bayfield	Sioux River at RM 0.1	1993	04180000	Lake Superior	established
792980	WI	Bayfield	Lake Superior	2014	04180000	Lake Superior	established
792981	WI	Ashland	Lake Superior	2014	04180000	Lake Superior	established
792983	WI	Iron	Oronto Creek	2014	04180000	Lake Superior	established
1247508	WI	Ashland	Lake Superior, Apostle Islands	2015	04180000	Lake Superior	established
1247510	WI	Ashland	Lake Superior, off Ashland	2015	04180000	Lake Superior	established
1247514	WI	Bayfield	Lake Superior, Chequamegon Bay	2015	04180000	Lake Superior	established
1247516	WI	Bayfield	Lake Superior, Chequamegon Bay	2015	04180000	Lake Superior	established
1247524	WI	Ashland	Lake Superior, Chequamegon Bay	2015	04180000	Lake Superior	established
1247526	WI	Bayfield	Lake Superior, Chequamegon Bay	2015	04180000	Lake Superior	established
1247529	WI	Bayfield	Lake Superior, Chequamegon Bay off Washburn	2015	04180000	Lake Superior	established
1247531	WI	Bayfield	Lake Superior, Chequamegon Bay	2015	04180000	Lake Superior	established
1247533	WI	Ashland	Lake Superior, Chequamegon Bay	2015	04180000	Lake Superior	established
1247536	WI	Ashland	Lake Superior, Chequamegon Bay	2015	04180000	Lake Superior	established
1247539	WI	Ashland	Lake Superior, Chequamegon Bay	2015	04180000	Lake Superior	established
1247542	WI	Ashland	Lake Superior, Chequamegon Bay	2015	04180000	Lake Superior	established
1247543	WI	Ashland	Lake Superior, Chequamegon Bay	2015	04180000	Lake Superior	established
1247546	WI	Bayfield	Lake Superior, Chequamegon Bay	2015	04180000	Lake Superior	established
1247548	WI	Bayfield	Lake Superior, Chequamegon Bay off Washburn	2015	04180000	Lake Superior	established
1247550	WI	Bayfield	Lake Superior, Chequamegon Bay off Washburn	2015	04180000	Lake Superior	established
1247551	WI	Bayfield	Lake Superior, Chequamegon Bay near Washburn	2015	04180000	Lake Superior	established
1247553	WI	Bayfield	Lake Superior, Chequamegon Bay, N of Washburn	2015	04180000	Lake Superior	established
1247556	WI	Bayfield	Lake Superior, Chequamegon Bay off Washburn	2015	04180000	Lake Superior	established
1247558	WI	Ashland	Lake Superior, Chequamegon Bay	2015	04180000	Lake Superior	established
1247560	WI	Ashland	Lake Superior, Chequamegon Bay	2015	04180000	Lake Superior	established
1247562	WI	Ashland	Lake Superior, Chequamegon Bay	2015	04180000	Lake Superior	established
1247564	WI	Ashland	Lake Superior, Chequamegon Bay	2015	04180000	Lake Superior	established
1247566	WI	Ashland	Lake Superior, Chequamegon Bay	2015	04180000	Lake Superior	established
1247568	WI	Ashland	Lake Superior, Chequamegon Bay	2015	04180000	Lake Superior	established
1247570	WI	Ashland	Lake Superior, Chequamegon Bay	2015	04180000	Lake Superior	established
1247572	WI	Ashland	Lake Superior, Chequamegon Bay	2015	04180000	Lake Superior	established
1247574	WI	Ashland	Lake Superior, off Bayfield	2015	04180000	Lake Superior	established
1247580	WI	Eau Claire	Lake Superior	2015	04180000	Lake Superior	established
1247581	WI	Bayfield	Lake Superior	2015	04180000	Lake Superior	established
1247582	WI	Douglas	Lake Superior, near city of Superior	2015	04180000	Lake Superior	established
1247583	WI	Douglas	Lake Superior, near city of Superior	2015	04180000	Lake Superior	established
1247584	WI	Bayfield	Lake Superior	2015	04180000	Lake Superior	established
1247596	WI	Ashland	Lake Superior, Chequamegon Bay	2015	04180000	Lake Superior	established
1247597	WI	Ashland	Lake Superior, Chequamegon Bay	2015	04180000	Lake Superior	established
1247599	WI	Ashland	Lake Superior, Chequamegon Bay	2015	04180000	Lake Superior	established
1247600	WI	Bayfield	Lake Superior, Chequamegon Bay	2015	04180000	Lake Superior	established
1247601	WI	Bayfield	Lake Superior, Chequamegon Bay	2015	04180000	Lake Superior	established
1247602	WI	Bayfield	Lake Superior, Chequamegon Bay	2015	04180000	Lake Superior	established
1247603	WI	Bayfield	Lake Superior, Chequamegon Bay	2015	04180000	Lake Superior	established
1247604	WI	Ashland	Lake Superior, Chequamegon Bay	2015	04180000	Lake Superior	established
1247609	WI	Bayfield	Lake Superior, Chequamegon Bay	2015	04180000	Lake Superior	established
1247610	WI	Bayfield	Lake Superior, Chequamegon Bay	2015	04180000	Lake Superior	established
1247611	WI	Bayfield	Lake Superior, Chequamegon Bay	2015	04180000	Lake Superior	established
1247615	WI	Douglas	Lake Superior, St. Louis River at mouth	2015	04180000	Lake Superior	established
1247617	WI	Douglas	Lake Superior, St. Louis River at mouth	2015	04180000	Lake Superior	established
1401222	WI	Ashland	Lake Superior [SW of Madeline Island]	2016	04180000	Lake Superior	established
1401223	WI	Ashland	Lake Superior [S of Madeline Island]	2016	04180000	Lake Superior	established
1401224	WI	Ashland	Lake Superior [between Madeline and Stock islands]	2016	04180000	Lake Superior	established
1401225	WI	Ashland	Lake Superior [between Stock and Outer islands]	2016	04180000	Lake Superior	established
1401226	WI	Ashland	Lake Superior [SW of Madeline Island]	2016	04180000	Lake Superior	established
1401227	WI	Bayfield	Lake Superior [SE of Washburn]	2016	04180000	Lake Superior	established
1401230	WI	Ashland	Lake Superior [just off mouth of Bad River]	2016	04180000	Lake Superior	established
1401228	WI	Bayfield	Lake Superior [SE of Washburn]	2016	04180000	Lake Superior	established
1401229	WI	Ashland	Lake Superior [ NW off mouth of Bad River]	2016	04180000	Lake Superior	established
1401231	WI	Bayfield	Lake Superior [SW end of Madeline Island, near Bayfield]	2016	04180000	Lake Superior	established
1401232	WI	Ashland	Lake Superior [W of Madeline Island, S of Basswood Island]	2016	04180000	Lake Superior	established
1401233	WI	Ashland	Lake Superior [W of Madeline Island, S of Basswood Island]	2016	04180000	Lake Superior	established
1401234	WI	Ashland	Lake Superior [W of Madeline Island, S of Basswood Island]	2016	04180000	Lake Superior	established
1401235	WI	Ashland	Lake Superior [W of Madeline Island, S of Basswood Island]	2016	04180000	Lake Superior	established
1401236	WI	Bayfield	Lake Superior [off Cornucopia]	2016	04180000	Lake Superior	established
1401488	WI	Douglas	St. Louis River	2008	04180000	Lake Superior	established
1401529	WI	Douglas	St. Louis River	2008	04180000	Lake Superior	established
1401478	WI	Douglas	St. Louis River	2008	04180000	Lake Superior	established
1401530	WI	Douglas	St. Louis River	2008	04180000	Lake Superior	established
1401481	WI	Douglas	St. Louis River	2008	04180000	Lake Superior	established
1401493	WI	Ashland	Chequamegon Bay	2009	04180000	Lake Superior	established
1401421	WI	Ashland	Chequamegon Bay	2009	04180000	Lake Superior	established
1401482	WI	Ashland	Chequamegon Bay	2009	04180000	Lake Superior	established
1401473	WI	Ashland	Chequamegon Bay	2009	04180000	Lake Superior	established
1401534	WI	Ashland	Chequamegon Bay	2009	04180000	Lake Superior	established
1401494	WI	Bayfield	Chequamegon Bay	2009	04180000	Lake Superior	established
1401422	WI	Bayfield	Chequamegon Bay	2009	04180000	Lake Superior	established
1401511	WI	Ashland	Chequamegon Bay	2009	04180000	Lake Superior	established
1401564	WI	Ashland	Chequamegon Bay	2009	04180000	Lake Superior	established
1401547	WI	Ashland	Chequamegon Bay	2009	04180000	Lake Superior	established
1401372	WI	Ashland	Chequamegon Bay	2010	04180000	Lake Superior	established
1401432	WI	Ashland	Chequamegon Bay	2010	04180000	Lake Superior	established
1401456	WI	Ashland	Chequamegon Bay	2010	04180000	Lake Superior	established
1401459	WI	Bayfield	Chequamegon Bay	2010	04180000	Lake Superior	established
1401512	WI	Ashland	Chequamegon Bay	2010	04180000	Lake Superior	established
1401565	WI	Ashland	Chequamegon Bay	2010	04180000	Lake Superior	established
1401548	WI	Ashland	Chequamegon Bay	2010	04180000	Lake Superior	established
1401460	WI	Ashland	Chequamegon Bay	2010	04180000	Lake Superior	established
1401593	WI	Ashland	Chequamegon Bay	2010	04180000	Lake Superior	established
1401581	WI	Ashland	Chequamegon Bay	2010	04180000	Lake Superior	established
1401500	WI	Ashland	Chequamegon Bay	2010	04180000	Lake Superior	established
1401566	WI	Ashland	Chequamegon Bay	2010	04180000	Lake Superior	established
1401315	WI	Douglas	St. Louis River	2010	04180000	Lake Superior	established
1401447	WI	Douglas	St. Louis River	2010	04180000	Lake Superior	established
1401436	WI	Douglas	St. Louis River	2010	04180000	Lake Superior	established
1401364	WI	Douglas	St. Louis River	2010	04180000	Lake Superior	established
1401536	WI	Douglas	St. Louis River	2010	04180000	Lake Superior	established
1401445	WI	Douglas	St. Louis River	2011	04180000	Lake Superior	established
1401433	WI	Douglas	St. Louis River	2011	04180000	Lake Superior	established
1401457	WI	Douglas	St. Louis River	2011	04180000	Lake Superior	established
1401322	WI	Douglas	St. Louis River	2011	04180000	Lake Superior	established
1401578	WI	Douglas	St. Louis River	2011	04180000	Lake Superior	established
1401446	WI	Douglas	St. Louis River	2011	04180000	Lake Superior	established
1401308	WI	Ashland	Chequamegon Bay	2011	04180000	Lake Superior	established
1401320	WI	Ashland	Chequamegon Bay	2011	04180000	Lake Superior	established
1401356	WI	Ashland	Chequamegon Bay	2011	04180000	Lake Superior	established
1401497	WI	Ashland	Chequamegon Bay	2011	04180000	Lake Superior	established
1401439	WI	Ashland	Chequamegon Bay	2011	04180000	Lake Superior	established
1401367	WI	Ashland	Chequamegon Bay	2011	04180000	Lake Superior	established
1401427	WI	Ashland	Chequamegon Bay	2011	04180000	Lake Superior	established
1401451	WI	Ashland	Chequamegon Bay	2011	04180000	Lake Superior	established
1401429	WI	Bayfield	Flag River	2012	04180000	Lake Superior	established
1401453	WI	Bayfield	Flag River	2012	04180000	Lake Superior	established
1401521	WI	Douglas	St. Louis River	2012	04180000	Lake Superior	established
1401537	WI	Douglas	St. Louis River	2012	04180000	Lake Superior	established
1401449	WI	Ashland	Chequamegon Bay	2012	04180000	Lake Superior	established
1401438	WI	Ashland	Chequamegon Bay	2012	04180000	Lake Superior	established
1401472	WI	Bayfield	Chequamegon Bay	2012	04180000	Lake Superior	established
1401366	WI	Douglas	St. Louis River	2013	04180000	Lake Superior	established
1401426	WI	Douglas	St. Louis River	2013	04180000	Lake Superior	established
1401522	WI	Douglas	St. Louis River	2013	04180000	Lake Superior	established
1401575	WI	Douglas	St. Louis River	2013	04180000	Lake Superior	established
1401579	WI	Bayfield	Chequamegon Bay	2013	04180000	Lake Superior	established
1401406	WI	Ashland	Chequamegon Bay	2013	04180000	Lake Superior	established
1401394	WI	Ashland	Chequamegon Bay	2013	04180000	Lake Superior	established
1401334	WI	Bayfield	Chequamegon Bay	2013	04180000	Lake Superior	established
1401601	WI	Bayfield	Chequamegon Bay	2013	04180000	Lake Superior	established
1401509	WI	Bayfield	Chequamegon Bay	2013	04180000	Lake Superior	established
1401392	WI	Ashland	Chequamegon Bay	2013	04180000	Lake Superior	established
1401332	WI	Ashland	Chequamegon Bay	2013	04180000	Lake Superior	established
1401558	WI	Ashland	Chequamegon Bay	2013	04180000	Lake Superior	established
1401538	WI	Douglas	St. Louis River	2014	04180000	Lake Superior	established
1401602	WI	Bayfield	Chequamegon Bay	2014	04180000	Lake Superior	established
1401510	WI	Ashland	Chequamegon Bay	2014	04180000	Lake Superior	established
1401563	WI	Bayfield	Chequamegon Bay	2014	04180000	Lake Superior	established
1401452	WI	Bayfield	Chequamegon Bay	2014	04180000	Lake Superior	established
1401441	WI	Ashland	Chequamegon Bay	2014	04180000	Lake Superior	established
1401369	WI	Ashland	Chequamegon Bay	2014	04180000	Lake Superior	established
1401390	WI	Ashland	Chequamegon Bay	2014	04180000	Lake Superior	established
1401542	WI	Ashland	Chequamegon Bay	2014	04180000	Lake Superior	established
1401330	WI	Ashland	Chequamegon Bay	2014	04180000	Lake Superior	established
1401379	WI	Ashland	Chequamegon Bay	2014	04180000	Lake Superior	established
1401504	WI	Ashland	Chequamegon Bay	2014	04180000	Lake Superior	established
1401487	WI	Ashland	Chequamegon Bay	2014	04180000	Lake Superior	established
1401353	WI	Bayfield	Chequamegon Bay	2014	04180000	Lake Superior	established
1401380	WI	Bayfield	Chequamegon Bay	2015	04180000	Lake Superior	established
1401404	WI	Bayfield	Chequamegon Bay	2015	04180000	Lake Superior	established
1401586	WI	Bayfield	Chequamegon Bay	2015	04180000	Lake Superior	established
1401415	WI	Douglas	St. Louis River	2015	04180000	Lake Superior	established
1401400	WI	Douglas	St. Louis River	2016	04180000	Lake Superior	established
1401388	WI	Douglas	St. Louis River	2016	04180000	Lake Superior	established
1401584	WI	Douglas	St. Louis River	2016	04180000	Lake Superior	established
1715769	WI	Bayfield	Sand River, Lake Superior, WI	1995	04180000	Lake Superior
1715770	WI	Bayfield	Sand River, Lake Superior, WI	2014	04180000	Lake Superior
1905138	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2017	04180000	Lake Superior
1905144	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2017	04180000	Lake Superior
1905147	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2017	04180000	Lake Superior
1905150	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2017	04180000	Lake Superior
1905514	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2018	04180000	Lake Superior
1905524	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2018	04180000	Lake Superior
1905527	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2018	04180000	Lake Superior
1905529	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2018	04180000	Lake Superior
1905536	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2018	04180000	Lake Superior
1905541	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2018	04180000	Lake Superior
1905546	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2018	04180000	Lake Superior
1905551	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2018	04180000	Lake Superior
1905556	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2018	04180000	Lake Superior
1905559	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2018	04180000	Lake Superior
1905561	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2018	04180000	Lake Superior
1905562	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2018	04180000	Lake Superior
1905583	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2018	04180000	Lake Superior
1905586	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2018	04180000	Lake Superior
1905590	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2018	04180000	Lake Superior
1905686	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2018	04180000	Lake Superior
1905690	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2018	04180000	Lake Superior
1905694	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2018	04180000	Lake Superior
1905698	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2018	04180000	Lake Superior
1905703	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2018	04180000	Lake Superior
1905708	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2018	04180000	Lake Superior
1905713	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2018	04180000	Lake Superior
1905718	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2018	04180000	Lake Superior
1905727	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2018	04180000	Lake Superior
1905773	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2019	04180000	Lake Superior
1905804	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2019	04180000	Lake Superior
1905805	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2019	04180000	Lake Superior
1905880	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2019	04180000	Lake Superior
1905884	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2019	04180000	Lake Superior
1906039	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2019	04180000	Lake Superior
1906043	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2019	04180000	Lake Superior
1906046	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2019	04180000	Lake Superior
1906049	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2019	04180000	Lake Superior
1906052	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2019	04180000	Lake Superior
1906060	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2019	04180000	Lake Superior
1906063	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2019	04180000	Lake Superior
1906251	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2019	04180000	Lake Superior
1906144	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2019	04180000	Lake Superior
1906146	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2019	04180000	Lake Superior
1906157	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2019	04180000	Lake Superior
1906162	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2019	04180000	Lake Superior
1906167	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2019	04180000	Lake Superior
1906172	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2019	04180000	Lake Superior
1906177	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2019	04180000	Lake Superior
1906186	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2019	04180000	Lake Superior
1906191	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2019	04180000	Lake Superior
1906355	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2010	04180000	Lake Superior
1906360	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2010	04180000	Lake Superior
1906362	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2010	04180000	Lake Superior
1906386	WI	Bayfield	Lake Superior, at Chequamegon Bay, WI	2010	04180000	Lake Superior
1906388	WI	Ashland	Lake Superior, at Chequamegon Bay, WI	2010	04180000	Lake Superior
1906394	WI	Ashland	Lake Superior, at Chequamegon Bay, WI	2010	04180000	Lake Superior
1906392	WI	Ashland	Lake Superior, at Chequamegon Bay, WI	2010	04180000	Lake Superior
1906393	WI	Ashland	Lake Superior, at Chequamegon Bay, WI	2010	04180000	Lake Superior
1906389	WI	Ashland	Lake Superior, at Chequamegon Bay, WI	2010	04180000	Lake Superior
1906391	WI	Ashland	Lake Superior, at Chequamegon Bay, WI	2010	04180000	Lake Superior
1906398	WI	Ashland	Lake Superior, at Chequamegon Bay, WI	2010	04180000	Lake Superior
1906399	WI	Ashland	Lake Superior, at Chequamegon Bay, WI	2010	04180000	Lake Superior
1906400	WI	Ashland	Lake Superior, at Chequamegon Bay, WI	2010	04180000	Lake Superior
1906401	WI	Ashland	Lake Superior, at Chequamegon Bay, WI	2010	04180000	Lake Superior
1906404	WI	Ashland	Lake Superior, at Chequamegon Bay, WI	2010	04180000	Lake Superior
1906406	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2010	04180000	Lake Superior
1906418	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2010	04180000	Lake Superior
1906441	WI	Ashland	Lake Superior, at Chequamegon Bay, WI	2011	04180000	Lake Superior
1906442	WI	Ashland	Lake Superior, at Chequamegon Bay, WI	2011	04180000	Lake Superior
1906446	WI	Ashland	Lake Superior, at Chequamegon Bay, WI	2011	04180000	Lake Superior
1906448	WI	Ashland	Lake Superior, at Chequamegon Bay, WI	2011	04180000	Lake Superior
1906449	WI	Ashland	Lake Superior, at Chequamegon Bay, WI	2011	04180000	Lake Superior
1906452	WI	Ashland	Lake Superior, at Chequamegon Bay, WI	2011	04180000	Lake Superior
1906455	WI	Ashland	Lake Superior, at Chequamegon Bay, WI	2011	04180000	Lake Superior
1906458	WI	Ashland	Lake Superior, at Chequamegon Bay, WI	2011	04180000	Lake Superior
1906599	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2011	04180000	Lake Superior
1906607	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2011	04180000	Lake Superior
1906610	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2011	04180000	Lake Superior
1906666	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2011	04180000	Lake Superior
1906669	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2011	04180000	Lake Superior
1906671	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2011	04180000	Lake Superior
1906766	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2012	04180000	Lake Superior
1906774	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2012	04180000	Lake Superior
1906804	WI	Ashland	Lake Superior, at Chequamegon Bay, WI	2012	04180000	Lake Superior
1906808	WI	Ashland	Lake Superior, at Chequamegon Bay, WI	2012	04180000	Lake Superior
1906811	WI	Bayfield	Lake Superior, at Chequamegon Bay, WI	2012	04180000	Lake Superior
1906822	WI	Bayfield	Lake Superior, at Chequamegon Bay, WI	2013	04180000	Lake Superior
1906830	WI	Ashland	Lake Superior, at Chequamegon Bay, WI	2013	04180000	Lake Superior
1906831	WI	Bayfield	Lake Superior, at Chequamegon Bay, WI	2013	04180000	Lake Superior
1906832	WI	Bayfield	Lake Superior, at Chequamegon Bay, WI	2013	04180000	Lake Superior
1906834	WI	Ashland	Lake Superior, at Chequamegon Bay, WI	2013	04180000	Lake Superior
1906839	WI	Ashland	Lake Superior, at Chequamegon Bay, WI	2013	04180000	Lake Superior
1906842	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2013	04180000	Lake Superior
1906848	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2013	04180000	Lake Superior
1906867	WI	Bayfield	Lake Superior, at Chequamegon Bay, WI	2013	04180000	Lake Superior
1906869	WI	Ashland	Lake Superior, at Chequamegon Bay, WI	2013	04180000	Lake Superior
1906870	WI	Ashland	Lake Superior, at Chequamegon Bay, WI	2013	04180000	Lake Superior
1906872	WI	Ashland	Lake Superior, at Chequamegon Bay, WI	2013	04180000	Lake Superior
1906880	WI	Bayfield	Lake Superior, at Chequamegon Bay, WI	2013	04180000	Lake Superior
1906901	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2013	04180000	Lake Superior
1906902	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2013	04180000	Lake Superior
1906961	WI	Ashland	Lake Superior, at Chequamegon Bay, WI	2014	04180000	Lake Superior
1906963	WI	Ashland	Lake Superior, at Chequamegon Bay, WI	2014	04180000	Lake Superior
1906965	WI	Bayfield	Lake Superior, at Chequamegon Bay, WI	2014	04180000	Lake Superior
1906966	WI	Bayfield	Lake Superior, at Chequamegon Bay, WI	2014	04180000	Lake Superior
1906969	WI	Ashland	Lake Superior, at Chequamegon Bay, WI	2014	04180000	Lake Superior
1906971	WI	Bayfield	Lake Superior, at Chequamegon Bay, WI	2014	04180000	Lake Superior
1907021	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2014	04180000	Lake Superior
1907053	WI	Bayfield	Lake Superior, at Chequamegon Bay, WI	2014	04180000	Lake Superior
1907056	WI	Ashland	Lake Superior, at Chequamegon Bay, WI	2014	04180000	Lake Superior
1907057	WI	Ashland	Lake Superior, at Chequamegon Bay, WI	2014	04180000	Lake Superior
1907058	WI	Ashland	Lake Superior, at Chequamegon Bay, WI	2014	04180000	Lake Superior
1907062	WI	Bayfield	Lake Superior, at Chequamegon Bay, WI	2014	04180000	Lake Superior
1907064	WI	Bayfield	Lake Superior, at Chequamegon Bay, WI	2014	04180000	Lake Superior
1907066	WI	Ashland	Lake Superior, at Chequamegon Bay, WI	2014	04180000	Lake Superior
1907068	WI	Ashland	Lake Superior, at Chequamegon Bay, WI	2014	04180000	Lake Superior
1907069	WI	Ashland	Lake Superior, at Chequamegon Bay, WI	2014	04180000	Lake Superior
1907070	WI	Ashland	Lake Superior, at Chequamegon Bay, WI	2014	04180000	Lake Superior
1907073	WI	Ashland	Lake Superior, at Chequamegon Bay, WI	2014	04180000	Lake Superior
1907075	WI	Ashland	Lake Superior, at Chequamegon Bay, WI	2014	04180000	Lake Superior
1907191	WI	Bayfield	Lake Superior, at Chequamegon Bay, WI	2015	04180000	Lake Superior
1907193	WI	Bayfield	Lake Superior, at Chequamegon Bay, WI	2015	04180000	Lake Superior
1907195	WI	Bayfield	Lake Superior, at Chequamegon Bay, WI	2015	04180000	Lake Superior
1907163	WI	Ashland	Lake Superior, at Chequamegon Bay, WI	2015	04180000	Lake Superior
1907167	WI	Ashland	Lake Superior, at Chequamegon Bay, WI	2015	04180000	Lake Superior
1907169	WI	Bayfield	Lake Superior, at Chequamegon Bay, WI	2015	04180000	Lake Superior
1907175	WI	Bayfield	Lake Superior, at Chequamegon Bay, WI	2015	04180000	Lake Superior
1907178	WI	Bayfield	Lake Superior, at Chequamegon Bay, WI	2015	04180000	Lake Superior
1907184	WI	Ashland	Lake Superior, at Chequamegon Bay, WI	2015	04180000	Lake Superior
1907240	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2015	04180000	Lake Superior
1907367	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2016	04180000	Lake Superior
1907370	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2016	04180000	Lake Superior
1907372	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2016	04180000	Lake Superior
1910400	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2021	04180000	Lake Superior
1910404	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2021	04180000	Lake Superior
1910451	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2021	04180000	Lake Superior
1910453	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2021	04180000	Lake Superior
1910456	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2021	04180000	Lake Superior
1910458	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2021	04180000	Lake Superior
1910464	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2021	04180000	Lake Superior
1910470	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2021	04180000	Lake Superior
1910471	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2021	04180000	Lake Superior
1910492	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2021	04180000	Lake Superior
1910503	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2021	04180000	Lake Superior
1910519	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2021	04180000	Lake Superior
1910599	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2021	04180000	Lake Superior
1910604	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2021	04180000	Lake Superior
1915591	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2022	04180000	Lake Superior
1915593	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2022	04180000	Lake Superior
1915713	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2022	04180000	Lake Superior
1915715	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2022	04180000	Lake Superior
1915717	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2022	04180000	Lake Superior
1915719	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2022	04180000	Lake Superior
1915732	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2022	04180000	Lake Superior
1915798	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2022	04180000	Lake Superior
1915802	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2022	04180000	Lake Superior
1915804	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2022	04180000	Lake Superior
1915805	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2022	04180000	Lake Superior
1916626	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2023	04180000	Lake Superior
1916630	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2023	04180000	Lake Superior
1916632	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2023	04180000	Lake Superior
1916721	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2023	04180000	Lake Superior
1916728	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2023	04180000	Lake Superior
1916828	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2023	04180000	Lake Superior
1916863	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2023	04180000	Lake Superior
1916865	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2023	04180000	Lake Superior
1916868	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2023	04180000	Lake Superior
1916921	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2023	04180000	Lake Superior
1916982	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2023	04180000	Lake Superior
1919592	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2024	04180000	Lake Superior
1919597	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2024	04180000	Lake Superior
1919600	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2024	04180000	Lake Superior
1919609	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2024	04180000	Lake Superior
1919613	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2024	04180000	Lake Superior
1919492	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2024	04180000	Lake Superior
1919564	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2024	04180000	Lake Superior
1919567	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2024	04180000	Lake Superior
1919569	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2024	04180000	Lake Superior
1919582	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2024	04180000	Lake Superior
1919586	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2024	04180000	Lake Superior
1919589	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2024	04180000	Lake Superior
1919618	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2024	04180000	Lake Superior
1919623	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2024	04180000	Lake Superior
1919677	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2024	04180000	Lake Superior
1919681	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2024	04180000	Lake Superior
1919686	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2024	04180000	Lake Superior
1922389	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2025	04180000	Lake Superior
1922562	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2025	04180000	Lake Superior
1922643	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2025	04180000	Lake Superior
1922272	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2025	04180000	Lake Superior
1922204	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2025	04180000	Lake Superior
1922975	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2025	04180000	Lake Superior
1923208	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2025	04180000	Lake Superior
1922469	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2025	04180000	Lake Superior
1922951	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2025	04180000	Lake Superior
1922901	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2025	04180000	Lake Superior
1922728	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2025	04180000	Lake Superior
1922286	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2025	04180000	Lake Superior
1922244	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2025	04180000	Lake Superior
1922308	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2025	04180000	Lake Superior
1922859	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2025	04180000	Lake Superior
1922514	WI	Douglas	Lake Superior, at St. Louis River, MN/WI	2025	04180000	Lake Superior

Citation for this information:
U.S. Geological Survey, 2026, Gymnocephalus cernua: U.S. Geological Survey, Nonindigenous Aquatic Species Database, Gainesville, FL, https://nas.er.usgs.gov, Access Date: 4/19/2026