GLANSIS

Gymnocephalus cernua

Ruffe

Collection Information for Gymnocephalus cernua

Results limited to All Great Lakes Drainages.
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
35377	MI	Gogebic	Black River, a tributary to Lake Superior, just upstream from the mouth	1994	04020101	Black-Presque Isle	established
35624	MI	Ontonagon	Firesteel River near mouth (Lake Superior)[~7 mi. NE of Ontonagon, MI]	1999	04020103	Keweenaw Peninsula	established
159120	MI	Ontonagon	Ontonagon River	2003	04020102	Ontonagon	established
159082	MI	Ontonagon	Ontonagon River	2003	04020102	Ontonagon	established
159083	MI	Ontonagon	Ontonagon River	2003	04020102	Ontonagon	established
159025	MI	Ontonagon	Ontonagon River	2002	04020102	Ontonagon	established
156410	MI	Ontonagon	Ontonagon River	2001	04020102	Ontonagon	established
156411	MI	Ontonagon	Ontonagon River	2001	04020102	Ontonagon	established
159078	MI	Ontonagon	Ontonagon River	2003	04020102	Ontonagon	established
159085	MI	Ontonagon	Ontonagon River	2003	04020102	Ontonagon	established
159119	MI	Ontonagon	Ontonagon River	2003	04020102	Ontonagon	established
156409	MI	Ontonagon	Ontonagon River	2001	04020102	Ontonagon	established
156383	MI	Ontonagon	Ontonagon River	2000	04020102	Ontonagon	established
159009	MI	Ontonagon	Ontonagon River	2002	04020102	Ontonagon	established
159010	MI	Ontonagon	Ontonagon River	2002	04020102	Ontonagon	established
156385	MI	Ontonagon	Ontonagon River	2000	04020102	Ontonagon	established
35613	MI	Ontonagon	Ontonagon River	1998	04020102	Ontonagon	established
156384	MI	Ontonagon	Ontonagon River	2000	04020102	Ontonagon	established
159118	MI	Ontonagon	Ontonagon River	2003	04020102	Ontonagon	established
159026	MI	Ontonagon	Ontonagon River	2002	04020102	Ontonagon	established
159077	MI	Ontonagon	Ontonagon River	2003	04020102	Ontonagon	established
159079	MI	Ontonagon	Ontonagon River	2003	04020102	Ontonagon	established
159011	MI	Ontonagon	Ontonagon River	2002	04020102	Ontonagon	established
35362	MI	Ontonagon	Ontonagon River [near mouth]	1999	04020102	Ontonagon	established
35363	MI	Ontonagon	Ontonagon River [near mouth]	1999	04020102	Ontonagon	established
159145	MI	Ontonagon	Ontonagon River [near mouth]	2004	04020102	Ontonagon	established
35378	MI	Ontonagon	Ontonagon River, a tributary of Lake Superior, just upstream from the mouth	1994	04020102	Ontonagon	established
35395	MI	Gogebic	Presque Isle River at Lake Superior north of (Connorville, MI)	1996	04020101	Black-Presque Isle	established
155894	MI	Houghton	Sturgeon River Sloughs [~2 mi ESE of Chassell, MI]	2002	04020103	Keweenaw Peninsula	established
159008	MI	Houghton	Sturgeon River Sloughs [~2 mi ESE of Chassell, MI]	2002	04020103	Keweenaw Peninsula	established
159146	MI	Houghton	Keweenaw Waterway (Pike Bay) [near Houghton, MI]	2004	04020103	Keweenaw Peninsula	established
159147	MI	Houghton	Keweenaw Waterway (South Entry - Portage Lake) [S of Houghton, MI]	2004	04020103	Keweenaw Peninsula	established
164650	MI	Houghton	Torch Lake [Hubbell, MI]	2005	04020103	Keweenaw Peninsula	established
166764	MI	Luce	Little Lake [inlet along Lake Superior]	2006	04020201	Betsy-Chocolay	established
238686	MI	Houghton	Keweenaw Waterway (Pike Bay) [near Houghton, MI]	2006	04020103	Keweenaw Peninsula	established
238687	MI	Houghton	Keweenaw Waterway (Pike Bay) [near Houghton, MI]	2006	04020103	Keweenaw Peninsula	established
238688	MI	Houghton	Keweenaw Waterway (South Entry - Portage Lake) [S of Houghton, MI]	2006	04020103	Keweenaw Peninsula	established
238691	MI	Houghton	Keweenaw Waterway (Torch Lake Canal) [Hubbell, MI]	2006	04020103	Keweenaw Peninsula	established
644333	MI	Ontonagon	unnamed stream [Misery Bay tributary]	2014	04020103	Keweenaw Peninsula	established
644334	MI	Ontonagon	unnamed stream [Misery Bay tributary]	2014	04020103	Keweenaw Peninsula	established
849117	MI	Houghton	Snake River headwaters, SE of Houghton	2012	04020104	Sturgeon	established
877622	MI	Chippewa	Roxbury Creek, approximately 250 m upstream of mouth	2015	04020203	Waiska	established
1401291	MI	Luce	Little Lake (harbor) [along Lake Superior shore]	2016	04020201	Betsy-Chocolay	unknown
1401471	MI	Houghton	Keweenaw Waterway	2016	04020103	Keweenaw Peninsula	established
1401503	MI	Houghton	Keweenaw Waterway	2016	04020103	Keweenaw Peninsula	established
1401523	MI	Houghton	Keweenaw Waterway	2016	04020103	Keweenaw Peninsula	established
1401483	MI	Houghton	Keweenaw Waterway	2016	04020103	Keweenaw Peninsula	established
1401411	MI	Houghton	Keweenaw Waterway	2016	04020103	Keweenaw Peninsula	established
1401528	MI	Houghton	Keweenaw Waterway	2016	04020103	Keweenaw Peninsula	established
1401375	MI	Houghton	Keweenaw Waterway	2016	04020103	Keweenaw Peninsula	established
1401399	MI	Houghton	Keweenaw Waterway	2016	04020103	Keweenaw Peninsula	established
1401318	MI	Houghton	Keweenaw Waterway	2016	04020103	Keweenaw Peninsula	established
1401358	MI	Houghton	Keweenaw Waterway	2016	04020103	Keweenaw Peninsula	established
1401346	MI	Houghton	Keweenaw Waterway	2016	04020103	Keweenaw Peninsula	established
1401311	MI	Houghton	Keweenaw Waterway	2016	04020103	Keweenaw Peninsula	established
1565570	MI	Houghton	[No locality description provided]	2014	04020103	Keweenaw Peninsula	established
1610399	MI	Houghton	[No locality description provided]	2017	04020103	Keweenaw Peninsula	established
1605821	MI	Houghton	[No locality description provided]	2019	04020103	Keweenaw Peninsula	established
1904761	MI	Houghton	Lake Superior, at Keweenaw Waterway, MI	2016	04020103	Keweenaw Peninsula
1904763	MI	Houghton	Lake Superior, at Keweenaw Waterway, MI	2016	04020103	Keweenaw Peninsula
1904767	MI	Houghton	Lake Superior, at Keweenaw Waterway, MI	2016	04020103	Keweenaw Peninsula
1904770	MI	Houghton	Lake Superior, at Keweenaw Waterway, MI	2016	04020103	Keweenaw Peninsula
1904772	MI	Houghton	Lake Superior, at Keweenaw Waterway, MI	2016	04020103	Keweenaw Peninsula
1904774	MI	Houghton	Lake Superior, at Keweenaw Waterway, MI	2016	04020103	Keweenaw Peninsula
1904777	MI	Houghton	Lake Superior, at Keweenaw Waterway, MI	2016	04020103	Keweenaw Peninsula
1904779	MI	Houghton	Lake Superior, at Keweenaw Waterway, MI	2016	04020103	Keweenaw Peninsula
1904780	MI	Houghton	Lake Superior, at Keweenaw Waterway, MI	2016	04020103	Keweenaw Peninsula
1904781	MI	Houghton	Lake Superior, at Keweenaw Waterway, MI	2016	04020103	Keweenaw Peninsula
1904986	MI	Houghton	Lake Superior, at Keweenaw Waterway, MI	2017	04020103	Keweenaw Peninsula
1904989	MI	Houghton	Lake Superior, at Keweenaw Waterway, MI	2017	04020103	Keweenaw Peninsula
1904992	MI	Houghton	Lake Superior, at Keweenaw Waterway, MI	2017	04020103	Keweenaw Peninsula
1904995	MI	Houghton	Lake Superior, at Keweenaw Waterway, MI	2017	04020103	Keweenaw Peninsula
1904998	MI	Houghton	Lake Superior, at Keweenaw Waterway, MI	2017	04020103	Keweenaw Peninsula
1905001	MI	Houghton	Lake Superior, at Keweenaw Waterway, MI	2017	04020103	Keweenaw Peninsula
1905006	MI	Houghton	Lake Superior, at Keweenaw Waterway, MI	2017	04020103	Keweenaw Peninsula
1905009	MI	Houghton	Lake Superior, at Keweenaw Waterway, MI	2017	04020103	Keweenaw Peninsula
1905011	MI	Houghton	Lake Superior, at Keweenaw Waterway, MI	2017	04020103	Keweenaw Peninsula
1905014	MI	Houghton	Lake Superior, at Keweenaw Waterway, MI	2017	04020103	Keweenaw Peninsula
1905017	MI	Houghton	Lake Superior, at Keweenaw Waterway, MI	2017	04020103	Keweenaw Peninsula
1905019	MI	Houghton	Lake Superior, at Keweenaw Waterway, MI	2017	04020103	Keweenaw Peninsula
1905022	MI	Houghton	Lake Superior, at Keweenaw Waterway, MI	2017	04020103	Keweenaw Peninsula
1905025	MI	Houghton	Lake Superior, at Keweenaw Waterway, MI	2017	04020103	Keweenaw Peninsula
1905028	MI	Houghton	Lake Superior, at Keweenaw Waterway, MI	2017	04020103	Keweenaw Peninsula
1905031	MI	Houghton	Lake Superior, at Keweenaw Waterway, MI	2017	04020103	Keweenaw Peninsula
1905034	MI	Houghton	Lake Superior, at Keweenaw Waterway, MI	2017	04020103	Keweenaw Peninsula
1905036	MI	Houghton	Lake Superior, at Keweenaw Waterway, MI	2017	04020103	Keweenaw Peninsula
1905037	MI	Houghton	Lake Superior, at Keweenaw Waterway, MI	2017	04020103	Keweenaw Peninsula
1905038	MI	Houghton	Lake Superior, at Keweenaw Waterway, MI	2017	04020103	Keweenaw Peninsula
1905039	MI	Houghton	Lake Superior, at Keweenaw Waterway, MI	2017	04020103	Keweenaw Peninsula
1905040	MI	Houghton	Lake Superior, at Keweenaw Waterway, MI	2017	04020103	Keweenaw Peninsula
1905041	MI	Houghton	Lake Superior, at Keweenaw Waterway, MI	2017	04020103	Keweenaw Peninsula
1905381	MI	Houghton	Lake Superior, at Keweenaw Waterway, MI	2018	04020103	Keweenaw Peninsula
1905382	MI	Houghton	Lake Superior, at Keweenaw Waterway, MI	2018	04020103	Keweenaw Peninsula
1905386	MI	Houghton	Lake Superior, at Keweenaw Waterway, MI	2018	04020103	Keweenaw Peninsula
1905389	MI	Houghton	Lake Superior, at Keweenaw Waterway, MI	2018	04020103	Keweenaw Peninsula
1905390	MI	Houghton	Lake Superior, at Keweenaw Waterway, MI	2018	04020103	Keweenaw Peninsula
1905394	MI	Houghton	Lake Superior, at Keweenaw Waterway, MI	2018	04020103	Keweenaw Peninsula
1905397	MI	Houghton	Lake Superior, at Keweenaw Waterway, MI	2018	04020103	Keweenaw Peninsula
1905400	MI	Houghton	Lake Superior, at Keweenaw Waterway, MI	2018	04020103	Keweenaw Peninsula
1905402	MI	Houghton	Lake Superior, at Keweenaw Waterway, MI	2018	04020103	Keweenaw Peninsula
1905405	MI	Houghton	Lake Superior, at Keweenaw Waterway, MI	2018	04020103	Keweenaw Peninsula
1905408	MI	Houghton	Lake Superior, at Keweenaw Waterway, MI	2018	04020103	Keweenaw Peninsula
1905410	MI	Houghton	Lake Superior, at Keweenaw Waterway, MI	2018	04020103	Keweenaw Peninsula
1905412	MI	Houghton	Lake Superior, at Keweenaw Waterway, MI	2018	04020103	Keweenaw Peninsula
1905414	MI	Houghton	Lake Superior, at Keweenaw Waterway, MI	2018	04020103	Keweenaw Peninsula
1905416	MI	Houghton	Lake Superior, at Keweenaw Waterway, MI	2018	04020103	Keweenaw Peninsula
1905418	MI	Houghton	Lake Superior, at Keweenaw Waterway, MI	2018	04020103	Keweenaw Peninsula
1905422	MI	Houghton	Lake Superior, at Keweenaw Waterway, MI	2018	04020103	Keweenaw Peninsula
1905423	MI	Houghton	Lake Superior, at Keweenaw Waterway, MI	2018	04020103	Keweenaw Peninsula
1905941	MI	Houghton	Lake Superior, at Keweenaw Waterway, MI	2019	04020103	Keweenaw Peninsula
1905942	MI	Houghton	Lake Superior, at Keweenaw Waterway, MI	2019	04020103	Keweenaw Peninsula
1905945	MI	Houghton	Lake Superior, at Keweenaw Waterway, MI	2019	04020103	Keweenaw Peninsula
1905949	MI	Houghton	Lake Superior, at Keweenaw Waterway, MI	2019	04020103	Keweenaw Peninsula
1905952	MI	Houghton	Lake Superior, at Keweenaw Waterway, MI	2019	04020103	Keweenaw Peninsula
1905954	MI	Houghton	Lake Superior, at Keweenaw Waterway, MI	2019	04020103	Keweenaw Peninsula
1905955	MI	Houghton	Lake Superior, at Keweenaw Waterway, MI	2019	04020103	Keweenaw Peninsula
1905956	MI	Houghton	Lake Superior, at Keweenaw Waterway, MI	2019	04020103	Keweenaw Peninsula
1905958	MI	Houghton	Lake Superior, at Keweenaw Waterway, MI	2019	04020103	Keweenaw Peninsula
1905960	MI	Houghton	Lake Superior, at Keweenaw Waterway, MI	2019	04020103	Keweenaw Peninsula
1905963	MI	Houghton	Lake Superior, at Keweenaw Waterway, MI	2019	04020103	Keweenaw Peninsula
1905964	MI	Houghton	Lake Superior, at Keweenaw Waterway, MI	2019	04020103	Keweenaw Peninsula
1905967	MI	Houghton	Lake Superior, at Keweenaw Waterway, MI	2019	04020103	Keweenaw Peninsula
1905968	MI	Houghton	Lake Superior, at Keweenaw Waterway, MI	2019	04020103	Keweenaw Peninsula
1905969	MI	Houghton	Lake Superior, at Keweenaw Waterway, MI	2019	04020103	Keweenaw Peninsula
1907402	MI	Houghton	Lake Superior, at Keweenaw Waterway, MI	2016	04020103	Keweenaw Peninsula
1907403	MI	Houghton	Lake Superior, at Keweenaw Waterway, MI	2016	04020103	Keweenaw Peninsula
1916688	MI	Houghton	Lake Superior, at Keweenaw Waterway, MI	2023	04020103	Keweenaw Peninsula
1916689	MI	Houghton	Lake Superior, at Keweenaw Waterway, MI	2023	04020103	Keweenaw Peninsula
1919426	MI	Houghton	Lake Superior, at Keweenaw Waterway, MI	2024	04020103	Keweenaw Peninsula
1919428	MI	Houghton	Lake Superior, at Keweenaw Waterway, MI	2024	04020103	Keweenaw Peninsula
1919431	MI	Houghton	Lake Superior, at Keweenaw Waterway, MI	2024	04020103	Keweenaw Peninsula
1919434	MI	Houghton	Lake Superior, at Keweenaw Waterway, MI	2024	04020103	Keweenaw Peninsula
1919436	MI	Houghton	Lake Superior, at Keweenaw Waterway, MI	2024	04020103	Keweenaw Peninsula
1919442	MI	Houghton	Lake Superior, at Keweenaw Waterway, MI	2024	04020103	Keweenaw Peninsula
1919444	MI	Houghton	Lake Superior, at Keweenaw Waterway, MI	2024	04020103	Keweenaw Peninsula
1919447	MI	Houghton	Lake Superior, at Keweenaw Waterway, MI	2024	04020103	Keweenaw Peninsula
1919452	MI	Houghton	Lake Superior, at Keweenaw Waterway, MI	2024	04020103	Keweenaw Peninsula
1919455	MI	Houghton	Lake Superior, at Keweenaw Waterway, MI	2024	04020103	Keweenaw Peninsula
1919456	MI	Houghton	Lake Superior, at Keweenaw Waterway, MI	2024	04020103	Keweenaw Peninsula
1919457	MI	Houghton	Lake Superior, at Keweenaw Waterway, MI	2024	04020103	Keweenaw Peninsula
1919458	MI	Houghton	Lake Superior, at Keweenaw Waterway, MI	2024	04020103	Keweenaw Peninsula
35509	MI	Alpena	Lake Huron, mouth of Thunder Bay River	1995	04240002	Lake Huron	established
35510	MI	Alpena	Lake Huron, mouth of Thunder Bay River	1995	04240002	Lake Huron	established
159123	MI	Delta	Lake Michigan, Little Bay de Noc in Escanaba, MI	2003	04190000	Lake Michigan	established
238696	MI	Delta	Lake Michigan, Little Bay de Noc in Escanaba, MI	2006	04190000	Lake Michigan	established
238693	MI	Ontonagon	Misery River [NW corner of Ontonagon County]	2006	04180000	Lake Superior	established
35614	MI	Alpena	Thunder Bay (Shipping Canal)	1998	04240002	Lake Huron	established
35615	MI	Alpena	Thunder Bay (Shipping Canal)	1998	04240002	Lake Huron	established
35545	MI	Alpena	Thunder Bay (River Shipping Channel)	1999	04240002	Lake Huron	established
159124	MI	Alpena	Thunder Bay River	2003	04070006	Thunder Bay	established
35617	MI	Alpena	Thunder Bay River	1998	04070006	Thunder Bay	established
156396	MI	Alpena	Thunder Bay River	2000	04070006	Thunder Bay	established
156397	MI	Alpena	Thunder Bay River	2000	04070006	Thunder Bay	established
156395	MI	Alpena	Thunder Bay River	2000	04070006	Thunder Bay	established
35616	MI	Alpena	Thunder Bay River	1998	04070006	Thunder Bay	established
35621	MI	Alpena	Thunder Bay River (~0.5-1 mi from the mouth)	1999	04070006	Thunder Bay	established
35622	MI	Alpena	Thunder Bay River (~0.5-1 mi from the mouth)	1999	04070006	Thunder Bay	established
35623	MI	Alpena	Thunder Bay River (~0.5-1 mi from the mouth)	1999	04070006	Thunder Bay	established
35394	MI	Alpena	Thunder Bay River (drains into Lake Huron)	1996	04070006	Thunder Bay	established
35582	MI	Alpena	Thunder Bay River at marina in Alpena, MI [Lake Huron]	1997	04240002	Lake Huron	established
35581	MI	Alpena	Thunder Bay River city boat launch near MDNR downstream to river mouth, Alpena, MI [Lake Huron]	1997	04070006	Thunder Bay	established
35589	MI	Alpena	Thunder Bay River city boat launch near MDNR downstream to river mouth, Alpena, MI [Lake Huron]	1997	04070006	Thunder Bay	established
35584	MI	Alpena	Thunder Bay River city boat launch near MDNR downstream to river mouth, Alpena, MI [Lake Huron]	1997	04070006	Thunder Bay	established
35585	MI	Alpena	Thunder Bay River city boat launch near MDNR downstream to river mouth, Alpena, MI [Lake Huron]	1997	04070006	Thunder Bay	established
35586	MI	Alpena	Thunder Bay River city boat launch near MDNR downstream to river mouth, Alpena, MI [Lake Huron]	1997	04070006	Thunder Bay	established
35587	MI	Alpena	Thunder Bay River city boat launch near MDNR downstream to river mouth, Alpena, MI [Lake Huron]	1997	04070006	Thunder Bay	established
35588	MI	Alpena	Thunder Bay River city boat launch near MDNR downstream to river mouth, Alpena, MI [Lake Huron]	1997	04070006	Thunder Bay	established
35583	MI	Alpena	Thunder Bay River upstream from 2nd St. bridge on south bank near Island Park, Alpena, MI [Lake Huron]	1997	04070006	Thunder Bay	established
35610	MI	Alpena	Thunder Bay River, Alpena, MI ~1 mile upstream from mouth around island park	1998	04070006	Thunder Bay	established
35606	MI	Alpena	Thunder Bay River, Alpena, MI just outside mouth in shipping channel within plume of river,	1998	04070006	Thunder Bay	established
35607	MI	Alpena	Thunder Bay River, Alpena, MI just outside mouth in shipping channel within plume of river,	1998	04070006	Thunder Bay	established
35608	MI	Alpena	Thunder Bay River, Alpena, MI just outside mouth in shipping channel within plume of river,	1998	04070006	Thunder Bay	established
35609	MI	Alpena	Thunder Bay, near Alpena, at LaFarge Cement Corp. near turning basin at dock	1998	04070006	Thunder Bay	established
35393	MI	Alpena	Thunder Bay River near mouth, Alpena, MI [Lake Huron]	1996	04070006	Thunder Bay	established
35365	MI	Alpena	Thunder Bay River near mouth, Alpena, MI [Lake Huron]	1999	04070006	Thunder Bay	established
35360	MI	Alpena	Thunder Bay River near mouth, Alpena, MI [Lake Huron]	1999	04070006	Thunder Bay	established
35590	MI	Alpena	Thunder Bay River near mouth, Alpena, MI [Lake Huron]	1998	04070006	Thunder Bay	established
35611	MI	Alpena	Thunder Bay River near mouth, Alpena, MI [Lake Huron]	1998	04070006	Thunder Bay	established
35612	MI	Alpena	Thunder Bay River near mouth, Alpena, MI [Lake Huron]	1998	04070006	Thunder Bay	established
155524	MI	Delta	Little Bay de Noc [Lake Michigan], Escanaba Harbor, Escanaba, MI	2002	04190000	Lake Michigan	established
156024	MI	Delta	Lake Michigan, Little Bay de Noc at Escanaba Harbor, Escanaba, MI (Upper Peninsula)	2002	04190000	Lake Michigan	established
159028	MI	Delta	Lake Michigan, Little Bay de Noc at Escanaba Harbor, Escanaba, MI (Upper Peninsula)	2002	04190000	Lake Michigan	established
156025	MI	Delta	Lake Michigan, Little Bay de Noc just north of Gladstone (Upper Peninsula)	2002	04190000	Lake Michigan	established
159449	MI	Alpena	Thunder Bay River and river mouth	2003	04070006	Thunder Bay	established
159427	MI	Alpena	Thunder Bay River and river mouth	2000	04070006	Thunder Bay	established
159442	MI	Alpena	Thunder Bay River and river mouth	2002	04070006	Thunder Bay	established
159443	MI	Alpena	Thunder Bay River and river mouth	2002	04070006	Thunder Bay	established
160240	MI	Delta	Lake Michigan, in Big Bay de Noc	2004	04190000	Lake Michigan	established
161261	MI	Marquette	Lake Superior in lower Marquette Harbor	2004	04180000	Lake Superior	established
163755	MI	Ontonagon	Misery River, 1.6 km from the mouth at the Misery River dam [tributary of Lake Superior]	2004	04180000	Lake Superior	established
238694	MI	Chippewa	Tahquamenon River at the mouth into Lake Superior	2006	04180000	Lake Superior	established
166707	MI	Chippewa	Tahquamenon River at the mouth into Lake Superior	2006	04180000	Lake Superior	established
166708	MI	Alger	Lake Superior, in West Bay at Grand Marais	2006	04180000	Lake Superior	established
238692	MI	Luce	Lake Superior at Little Lake Harbor	2006	04180000	Lake Superior	established
269004	MI	Alpena	Lake Huron [Thunder Bay ship canal] near Alpena	1995	04240002	Lake Huron	established
276480	MI	Chippewa	Lake Superior, north of Whitefish Point [Upper Peninsula]	2011	04180000	Lake Superior	established
276483	MI	Chippewa	Lake Superior, near Tahquamenon Bay	2011	04180000	Lake Superior	established
279879	MI	Presque Isle	Trout River, in Rogers City	2008	04070003	Lone Lake-Ocqueoc	unknown
282084	MI	Cheboygan	Cheboygan River, in Cheboygan	2011	04070004	Cheboygan	established
159426	MI	Alpena	Thunder Bay - within ship channel	2000	04240002	Lake Huron	established
156398	MI	Alpena	Thunder Bay - within ship channel	2000	04240002	Lake Huron	established
324371	MI	Keweenaw	Lake Superior [west of Keweenaw Peninsula]	2011	04180000	Lake Superior	unknown
324372	MI	Keweenaw	Lake Superior [west of Keweenaw Peninsula]	2012	04180000	Lake Superior	established
644328	MI	Chippewa	Tahquamenon River, 100 m downstream from boat launch	2014	04180000	Lake Superior	established
644331	MI	Ontonagon	Misery River	2014	04180000	Lake Superior	established
645244	MI	Chippewa	Lake Superior, within 100m of the mouth of Pendills Creek on the east side of the mouth	2014	04180000	Lake Superior	established
1247496	MI	Chippewa	Lake Superior at Naomikong	2014	04180000	Lake Superior	established
1247497	MI	Chippewa	Lake Superior at Naomikong	2014	04180000	Lake Superior	established
1247498	MI	Chippewa	Lake Superior at Naomikong	2014	04180000	Lake Superior	established
1247499	MI	Chippewa	Lake Superior at Shallows	2014	04180000	Lake Superior	established
1247500	MI	Chippewa	Lake Superior at Shallows	2014	04180000	Lake Superior	established
1247501	MI	Chippewa	Lake Superior at Shallows	2014	04180000	Lake Superior	established
1247504	MI	Baraga	Lake Superior, Keweenaw Bay	2015	04180000	Lake Superior	established
1247505	MI	Baraga	Lake Superior, at Huron Bay	2015	04180000	Lake Superior	established
1247506	MI	Delta	Lake Michigan, at Little Bay de Noc	2015	04190000	Lake Michigan	established
1401292	MI	Delta	Lake Michigan, Little Bay de Noc at Gladstone	2016	04190000	Lake Michigan	established
1401293	MI	Alger	Lake Superior at Grand Marais	2016	04180000	Lake Superior	established
1401294	MI	Alger	Lake Superior at Grand Marais	2016	04180000	Lake Superior	established
1401295	MI	Alger	Lake Superior at Grand Marais	2016	04180000	Lake Superior	established
1401296	MI	Delta	Lake Michigan, Little Bay de Noc, N of Gladstone	2016	04190000	Lake Michigan	established
1401297	MI	Delta	Lake Michigan, Little Bay de Noc at Gladstone	2016	04190000	Lake Michigan	established
1401335	MI	Baraga	Keweenaw Bay	2016	04180000	Lake Superior	established
1401327	MI	Baraga	Keweenaw Bay	2016	04180000	Lake Superior	established
1401376	MI	Baraga	Huron Bay	2016	04180000	Lake Superior	established
1401323	MI	Marquette	Marquette Lower Harbor	2016	04180000	Lake Superior	established
1401539	MI	Marquette	Marquette Lower Harbor	2016	04180000	Lake Superior	established
1401507	MI	Marquette	Marquette Upper Harbor	2016	04180000	Lake Superior	established
1420983	MI	Chippewa	St. Marys River near Brimley	2017	04200002	St. Marys	unknown
1421450	MI	Delta	Escanaba - Little Bay De Noc	2017	04190000	Lake Michigan	unknown
1428242	MI	Delta	Lake Michigan, Green Bay, Little Bay de Noc	2017	04190000	Lake Michigan	established
1548308	MI	Chippewa	St. Marys River, at Lime Island	2019	04200002	St. Marys	unknown
1549403	MI	Delta	[No locality description provided]	2002	04190000	Lake Michigan	established
1549408	MI	Delta	[No locality description provided]	2004	04190000	Lake Michigan	established
1606117	MI	Chippewa	[No locality description provided]	2016	04180000	Lake Superior	established
1695422	MI	Chippewa	Tahquamenon River mouth area in Luce County, MI	2022	04180000	Lake Superior	established
1711808	MI	Chippewa	Upper River	2022	04200002	St. Marys
1711809	MI	Chippewa	Upper River	2020	04200002	St. Marys
1711810	MI	Chippewa	Upper River	2020	04200002	St. Marys
1711811	MI	Chippewa	Upper River	2020	04200002	St. Marys
1715771	MI	Delta	Little Bay de Noc, Lake Michigan	2002	04190000	Lake Michigan
1715772	MI	Delta	Little Bay de Noc, Lake Michigan	2014	04190000	Lake Michigan
1715773	MI	Delta	Little Bay de Noc, Lake Michigan	2015	04190000	Lake Michigan
1715774	MI	Alpena	Thunder Bay, Lake Huron	1996	04240002	Lake Huron
1715775	MI	Alpena	Thunder Bay, Lake Huron	2003	04240002	Lake Huron
1724123	MI	Chippewa	Lake George, St. Marys River	2023	04200002	St. Marys	established
1724125	MI	Chippewa	Lake George, St. Marys River	2023	04200002	St. Marys	established
1724126	MI	Chippewa	Lake George, St. Marys River	2023	04200002	St. Marys	established
1724127	MI	Chippewa	Lake George, St. Marys River	2023	04200002	St. Marys	established
1736427	MI	Chippewa	Near De Tour Village in the the St. Mary's River	2024	04200002	St. Marys
1736570	MI	Chippewa	near Raber Island in the Saint Marys River	2024	04200002	St. Marys
1736571	MI	Chippewa	Lake George portion of the St. Marys River (collections both in US and Canadian waters)	2023	04200002	St. Marys
1889893	MI	Chippewa	[No locality description provided]	2025	04180000	Lake Superior
1897727	MI	Delta	Lake Michigan, at Escanaba, MI	2017	04190000	Lake Michigan
1903300	MI	Alpena	Lake Huron, at Thunder Bay Area, MI	2017	04240002	Lake Huron
1903301	MI	Alpena	Lake Huron, at Thunder Bay Area, MI	2017	04070006	Thunder Bay
1904803	MI	Marquette	Lake Superior, at Marquette, MI	2016	04180000	Lake Superior
1904806	MI	Marquette	Lake Superior, at Marquette, MI	2016	04180000	Lake Superior
1904811	MI	Marquette	Lake Superior, at Marquette, MI	2016	04180000	Lake Superior
1904909	MI	Baraga	Lake Superior, at Keweenaw and Huron Bays, MI	2017	04180000	Lake Superior
1904926	MI	Baraga	Lake Superior, at Keweenaw and Huron Bays, MI	2017	04180000	Lake Superior
1905054	MI	Marquette	Lake Superior, at Marquette, MI	2017	04180000	Lake Superior
1905065	MI	Marquette	Lake Superior, at Marquette, MI	2017	04180000	Lake Superior
1905340	MI	Marquette	Lake Superior, at Marquette, MI	2018	04180000	Lake Superior
1905342	MI	Marquette	Lake Superior, at Marquette, MI	2018	04180000	Lake Superior
1905344	MI	Marquette	Lake Superior, at Marquette, MI	2018	04180000	Lake Superior
1905351	MI	Marquette	Lake Superior, at Marquette, MI	2018	04180000	Lake Superior
1905356	MI	Marquette	Lake Superior, at Marquette, MI	2018	04180000	Lake Superior
1905985	MI	Baraga	Lake Superior, at Keweenaw and Huron Bays, MI	2019	04180000	Lake Superior
1905986	MI	Baraga	Lake Superior, at Keweenaw and Huron Bays, MI	2019	04180000	Lake Superior
1905988	MI	Baraga	Lake Superior, at Keweenaw and Huron Bays, MI	2019	04180000	Lake Superior
1905992	MI	Baraga	Lake Superior, at Keweenaw and Huron Bays, MI	2019	04180000	Lake Superior
1906026	MI	Baraga	Lake Superior, at Keweenaw and Huron Bays, MI	2019	04180000	Lake Superior
1906035	MI	Baraga	Lake Superior, at Keweenaw and Huron Bays, MI	2019	04180000	Lake Superior
1907299	MI	Baraga	Lake Superior, at Keweenaw and Huron Bays, MI	2016	04180000	Lake Superior
1907312	MI	Baraga	Lake Superior, at Keweenaw and Huron Bays, MI	2016	04180000	Lake Superior
1907317	MI	Baraga	Lake Superior, at Keweenaw and Huron Bays, MI	2016	04180000	Lake Superior
1907334	MI	Baraga	Lake Superior, at Keweenaw and Huron Bays, MI	2016	04180000	Lake Superior
1909423	MI	Chippewa	Lake Superior, at St. Marys River, MI/ON	2020	04200002	St. Marys
1909424	MI	Chippewa	Lake Superior, at St. Marys River, MI/ON	2020	04200002	St. Marys
1909425	MI	Chippewa	Lake Superior, at St. Marys River, MI/ON	2020	04200002	St. Marys
1913360	MI	Delta	Lake Michigan, at Escanaba, MI	2022	04190000	Lake Michigan
1913369	MI	Delta	Lake Michigan, at Escanaba, MI	2022	04190000	Lake Michigan
1913358	MI	Delta	Lake Michigan, at Escanaba, MI	2022	04190000	Lake Michigan
1913366	MI	Delta	Lake Michigan, at Escanaba, MI	2022	04190000	Lake Michigan
1913357	MI	Delta	Lake Michigan, at Escanaba, MI	2022	04190000	Lake Michigan
1913359	MI	Delta	Lake Michigan, at Escanaba, MI	2022	04190000	Lake Michigan
1913361	MI	Delta	Lake Michigan, at Escanaba, MI	2022	04190000	Lake Michigan
1913362	MI	Delta	Lake Michigan, at Escanaba, MI	2022	04190000	Lake Michigan
1913363	MI	Delta	Lake Michigan, at Escanaba, MI	2022	04190000	Lake Michigan
1913364	MI	Delta	Lake Michigan, at Escanaba, MI	2022	04190000	Lake Michigan
1913365	MI	Delta	Lake Michigan, at Escanaba, MI	2022	04190000	Lake Michigan
1913367	MI	Delta	Lake Michigan, at Escanaba, MI	2022	04190000	Lake Michigan
1913368	MI	Delta	Lake Michigan, at Escanaba, MI	2022	04190000	Lake Michigan
1913370	MI	Delta	Lake Michigan, at Escanaba, MI	2022	04190000	Lake Michigan
1913371	MI	Delta	Lake Michigan, at Escanaba, MI	2022	04190000	Lake Michigan
1913736	MI	Chippewa	Lake Superior, at St. Marys River, MI/ON	2022	04200002	St. Marys
1917576	MI	Delta	Lake Michigan, at Escanaba, MI	2023	04190000	Lake Michigan
1917578	MI	Delta	Lake Michigan, at Escanaba, MI	2023	04190000	Lake Michigan
1917579	MI	Delta	Lake Michigan, at Escanaba, MI	2023	04190000	Lake Michigan
1917581	MI	Delta	Lake Michigan, at Escanaba, MI	2023	04190000	Lake Michigan
1916995	MI	Delta	Lake Michigan, at Escanaba, MI	2023	04190000	Lake Michigan
1917031	MI	Delta	Lake Michigan, at Escanaba, MI	2023	04190000	Lake Michigan
1917034	MI	Delta	Lake Michigan, at Escanaba, MI	2023	04190000	Lake Michigan
1917038	MI	Delta	Lake Michigan, at Escanaba, MI	2023	04190000	Lake Michigan
1917040	MI	Delta	Lake Michigan, at Escanaba, MI	2023	04190000	Lake Michigan
1917043	MI	Delta	Lake Michigan, at Escanaba, MI	2023	04190000	Lake Michigan
1917055	MI	Delta	Lake Michigan, at Escanaba, MI	2023	04190000	Lake Michigan
1917577	MI	Delta	Lake Michigan, at Escanaba, MI	2023	04190000	Lake Michigan
1917580	MI	Delta	Lake Michigan, at Escanaba, MI	2023	04190000	Lake Michigan
1917800	MI	Chippewa	Lake Huron, at St. Marys River, MI/ON	2023	04200002	St. Marys
1917802	MI	Chippewa	Lake Huron, at St. Marys River, MI/ON	2023	04200002	St. Marys
1917803	MI	Chippewa	Lake Huron, at St. Marys River, MI/ON	2023	04200002	St. Marys
1917857	MI	Chippewa	Lake Huron, at St. Marys River, MI/ON	2023	04200002	St. Marys
1917892	MI	Chippewa	Lake Superior, at St. Marys River, MI/ON	2023	04200002	St. Marys
1917894	MI	Chippewa	Lake Superior, at St. Marys River, MI/ON	2023	04200002	St. Marys
1921321	MI	Chippewa	Lake Huron, at St. Marys River, MI/ON	2024	04200002	St. Marys
1921348	MI	Chippewa	Lake Huron, at St. Marys River, MI/ON	2024	04200002	St. Marys
1921350	MI	Chippewa	Lake Huron, at St. Marys River, MI/ON	2024	04200002	St. Marys
1921352	MI	Chippewa	Lake Huron, at St. Marys River, MI/ON	2024	04200002	St. Marys
1921354	MI	Chippewa	Lake Huron, at St. Marys River, MI/ON	2024	04200002	St. Marys
1921386	MI	Chippewa	Lake Huron, at St. Marys River, MI/ON	2024	04200002	St. Marys
1921410	MI	Chippewa	Lake Superior, at St. Marys River, MI/ON	2024	04200002	St. Marys
1921411	MI	Chippewa	Lake Superior, at St. Marys River, MI/ON	2024	04200002	St. Marys
1921412	MI	Chippewa	Lake Superior, at St. Marys River, MI/ON	2024	04200002	St. Marys
1921414	MI	Chippewa	Lake Superior, at St. Marys River, MI/ON	2024	04200002	St. Marys
1921415	MI	Delta	Lake Michigan, at Escanaba, MI	2024	04190000	Lake Michigan
1921417	MI	Delta	Lake Michigan, at Escanaba, MI	2024	04190000	Lake Michigan
1921419	MI	Delta	Lake Michigan, at Escanaba, MI	2024	04190000	Lake Michigan
1921420	MI	Delta	Lake Michigan, at Escanaba, MI	2024	04190000	Lake Michigan
1921422	MI	Delta	Lake Michigan, at Escanaba, MI	2024	04190000	Lake Michigan
1921423	MI	Delta	Lake Michigan, at Escanaba, MI	2024	04190000	Lake Michigan
1921425	MI	Delta	Lake Michigan, at Escanaba, MI	2024	04190000	Lake Michigan
1921426	MI	Delta	Lake Michigan, at Escanaba, MI	2024	04190000	Lake Michigan
1921440	MI	Delta	Lake Michigan, at Escanaba, MI	2024	04190000	Lake Michigan
1921442	MI	Delta	Lake Michigan, at Escanaba, MI	2024	04190000	Lake Michigan
1921443	MI	Delta	Lake Michigan, at Escanaba, MI	2024	04190000	Lake Michigan
1921446	MI	Delta	Lake Michigan, at Escanaba, MI	2024	04190000	Lake Michigan
1921447	MI	Delta	Lake Michigan, at Escanaba, MI	2024	04190000	Lake Michigan
1921450	MI	Delta	Lake Michigan, at Escanaba, MI	2024	04190000	Lake Michigan
1921459	MI	Delta	Lake Michigan, at Escanaba, MI	2024	04190000	Lake Michigan
1921462	MI	Delta	Lake Michigan, at Escanaba, MI	2024	04190000	Lake Michigan
1921465	MI	Delta	Lake Michigan, at Escanaba, MI	2024	04190000	Lake Michigan
1921466	MI	Delta	Lake Michigan, at Escanaba, MI	2024	04190000	Lake Michigan
1921469	MI	Delta	Lake Michigan, at Escanaba, MI	2024	04190000	Lake Michigan
1921472	MI	Delta	Lake Michigan, at Escanaba, MI	2024	04190000	Lake Michigan
1921473	MI	Delta	Lake Michigan, at Escanaba, MI	2024	04190000	Lake Michigan
1921474	MI	Delta	Lake Michigan, at Escanaba, MI	2024	04190000	Lake Michigan
1921477	MI	Delta	Lake Michigan, at Escanaba, MI	2024	04190000	Lake Michigan
1921480	MI	Delta	Lake Michigan, at Escanaba, MI	2024	04190000	Lake Michigan
1921481	MI	Delta	Lake Michigan, at Escanaba, MI	2024	04190000	Lake Michigan
1921484	MI	Delta	Lake Michigan, at Escanaba, MI	2024	04190000	Lake Michigan
1921486	MI	Delta	Lake Michigan, at Escanaba, MI	2024	04190000	Lake Michigan
1921488	MI	Delta	Lake Michigan, at Escanaba, MI	2024	04190000	Lake Michigan
1921491	MI	Delta	Lake Michigan, at Escanaba, MI	2024	04190000	Lake Michigan
1921494	MI	Delta	Lake Michigan, at Escanaba, MI	2024	04190000	Lake Michigan
1921496	MI	Delta	Lake Michigan, at Escanaba, MI	2024	04190000	Lake Michigan
1921498	MI	Delta	Lake Michigan, at Escanaba, MI	2024	04190000	Lake Michigan
1921499	MI	Delta	Lake Michigan, at Escanaba, MI	2024	04190000	Lake Michigan
1921501	MI	Delta	Lake Michigan, at Escanaba, MI	2024	04190000	Lake Michigan
1921505	MI	Delta	Lake Michigan, at Escanaba, MI	2024	04190000	Lake Michigan
1921507	MI	Delta	Lake Michigan, at Escanaba, MI	2024	04190000	Lake Michigan
1921513	MI	Delta	Lake Michigan, at Escanaba, MI	2024	04190000	Lake Michigan
1921515	MI	Delta	Lake Michigan, at Escanaba, MI	2024	04190000	Lake Michigan
1921520	MI	Delta	Lake Michigan, at Escanaba, MI	2024	04190000	Lake Michigan
1921525	MI	Delta	Lake Michigan, at Escanaba, MI	2024	04190000	Lake Michigan
1921528	MI	Delta	Lake Michigan, at Escanaba, MI	2024	04190000	Lake Michigan
1921532	MI	Delta	Lake Michigan, at Escanaba, MI	2024	04190000	Lake Michigan
1921534	MI	Delta	Lake Michigan, at Escanaba, MI	2024	04190000	Lake Michigan
1921536	MI	Delta	Lake Michigan, at Escanaba, MI	2024	04190000	Lake Michigan
1921538	MI	Delta	Lake Michigan, at Escanaba, MI	2024	04190000	Lake Michigan
1921541	MI	Delta	Lake Michigan, at Escanaba, MI	2024	04190000	Lake Michigan
1921544	MI	Delta	Lake Michigan, at Escanaba, MI	2024	04190000	Lake Michigan
1921546	MI	Delta	Lake Michigan, at Escanaba, MI	2024	04190000	Lake Michigan
1921550	MI	Delta	Lake Michigan, at Escanaba, MI	2024	04190000	Lake Michigan
1922150	MI	Delta	Lake Michigan, at Escanaba, MI	2024	04190000	Lake Michigan
1922297	MI	Chippewa	Lake Superior, at St. Marys River, MI/ON	2025	04200002	St. Marys
1922708	MI	Chippewa	Lake Superior, at St. Marys River, MI/ON	2025	04200002	St. Marys
1922978	MI	Chippewa	Lake Superior, at St. Marys River, MI/ON	2025	04200002	St. Marys
1923248	MI	Chippewa	Lake Superior, at St. Marys River, MI/ON	2025	04200002	St. Marys
1924195	MI	Chippewa	Lake Huron, at St. Marys River, MI/ON	2025	04200002	St. Marys
1924210	MI	Chippewa	Lake Huron, at St. Marys River, MI/ON	2025	04200002	St. Marys
1924236	MI	Chippewa	Lake Huron, at St. Marys River, MI/ON	2025	04200002	St. Marys

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