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)

(click table headers to sort)
Specimen IDStateCountyLocalityYearHUC NumberDrainage NameStatus
1905097ONT Lake Superior, at Thunder Bay, ON201704160001Dog River-Frontal Lake Superior 
1905730ONT Lake Superior, at Thunder Bay, ON201804160001Dog River-Frontal Lake Superior 
1906275ONT Lake Superior, at Thunder Bay, ON201004160001Dog River-Frontal Lake Superior 
1906503ONT Lake Superior, at Thunder Bay, ON201104160001Dog River-Frontal Lake Superior 
1906524ONT Lake Superior, at Thunder Bay, ON201104160001Dog River-Frontal Lake Superior 
1906525ONT Lake Superior, at Thunder Bay, ON201104160001Dog River-Frontal Lake Superior 
1906744ONT Lake Superior, at Thunder Bay, ON201204160001Dog River-Frontal Lake Superior 
1906746ONT Lake Superior, at Thunder Bay, ON201204160001Dog River-Frontal Lake Superior 
1906751ONT Lake Superior, at Thunder Bay, ON201204160001Dog River-Frontal Lake Superior 
1906913ONT Lake Superior, at Thunder Bay, ON201304160001Dog River-Frontal Lake Superior 
1906916ONT Lake Superior, at Thunder Bay, ON201304160001Dog River-Frontal Lake Superior 
1906953ONT Lake Superior, at Thunder Bay, ON201304160001Dog River-Frontal Lake Superior 
1907152ONT Lake Superior, at Thunder Bay, ON201504160001Dog River-Frontal Lake Superior 
1911075ONT Lake Superior, at Thunder Bay, ON202104160001Dog River-Frontal Lake Superior 
1915615ONT Lake Superior, at Thunder Bay, ON202204160001Dog River-Frontal Lake Superior 
1904827ONT Lake Superior, at Thunder Bay, ON201604180000Lake Superior 
1904828ONT Lake Superior, at Thunder Bay, ON201604180000Lake Superior 
1904830ONT Lake Superior, at Thunder Bay, ON201604180000Lake Superior 
1904831ONT Lake Superior, at Thunder Bay, ON201604180000Lake Superior 
1904834ONT Lake Superior, at Thunder Bay, ON201604180000Lake Superior 
1904836ONT Lake Superior, at Thunder Bay, ON201604180000Lake Superior 
1904837ONT Lake Superior, at Thunder Bay, ON201604180000Lake Superior 
1904838ONT Lake Superior, at Thunder Bay, ON201604180000Lake Superior 
1904839ONT Lake Superior, at Thunder Bay, ON201604180000Lake Superior 
1904842ONT Lake Superior, at Black Bay, ON201604180000Lake Superior 
1904843ONT Lake Superior, at Black Bay, ON201604180000Lake Superior 
1905079ONT Lake Superior, at Thunder Bay, ON201704180000Lake Superior 
1905081ONT Lake Superior, at Thunder Bay, ON201704180000Lake Superior 
1905083ONT Lake Superior, at Thunder Bay, ON201704180000Lake Superior 
1905085ONT Lake Superior, at Thunder Bay, ON201704180000Lake Superior 
1905087ONT Lake Superior, at Thunder Bay, ON201704180000Lake Superior 
1905090ONT Lake Superior, at Thunder Bay, ON201704180000Lake Superior 
1905092ONT Lake Superior, at Thunder Bay, ON201704180000Lake Superior 
1905094ONT Lake Superior, at Thunder Bay, ON201704180000Lake Superior 
1905096ONT Lake Superior, at Thunder Bay, ON201704180000Lake Superior 
1905099ONT Lake Superior, at Thunder Bay, ON201704180000Lake Superior 
1905100ONT Lake Superior, at Thunder Bay, ON201704180000Lake Superior 
1905101ONT Lake Superior, at Thunder Bay, ON201704180000Lake Superior 
1905102ONT Lake Superior, at Thunder Bay, ON201704180000Lake Superior 
1905113ONT Lake Superior, at Thunder Bay, ON201704180000Lake Superior 
1905739ONT Lake Superior, at Thunder Bay, ON201804180000Lake Superior 
1905751ONT Lake Superior, at Thunder Bay, ON201804180000Lake Superior 
1905756ONT Lake Superior, at Thunder Bay, ON201804180000Lake Superior 
1905762ONT Lake Superior, at Thunder Bay, ON201804180000Lake Superior 
1905764ONT Lake Superior, at Thunder Bay, ON201804180000Lake Superior 
1905766ONT Lake Superior, at Thunder Bay, ON201804180000Lake Superior 
1905768ONT Lake Superior, at Thunder Bay, ON201804180000Lake Superior 
1905770ONT Lake Superior, at Thunder Bay, ON201804180000Lake Superior 
1905995ONT Lake Superior, at Thunder Bay, ON201904180000Lake Superior 
1905997ONT Lake Superior, at Thunder Bay, ON201904180000Lake Superior 
1906000ONT Lake Superior, at Thunder Bay, ON201904180000Lake Superior 
1906001ONT Lake Superior, at Thunder Bay, ON201904180000Lake Superior 
1906003ONT Lake Superior, at Thunder Bay, ON201904180000Lake Superior 
1906007ONT Lake Superior, at Thunder Bay, ON201904180000Lake Superior 
1906012ONT Lake Superior, at Thunder Bay, ON201904180000Lake Superior 
1906013ONT Lake Superior, at Thunder Bay, ON201904180000Lake Superior 
1906014ONT Lake Superior, at Thunder Bay, ON201904180000Lake Superior 
1906016ONT Lake Superior, at Thunder Bay, ON201904180000Lake Superior 
1906018ONT Lake Superior, at Thunder Bay, ON201904180000Lake Superior 
1906020ONT Lake Superior, at Thunder Bay, ON201904180000Lake Superior 
1906278ONT Lake Superior, at Thunder Bay, ON201004180000Lake Superior 
1906283ONT Lake Superior, at Thunder Bay, ON201004180000Lake Superior 
1906288ONT Lake Superior, at Thunder Bay, ON201004180000Lake Superior 
1906293ONT Lake Superior, at Thunder Bay, ON201004180000Lake Superior 
1906298ONT Lake Superior, at Thunder Bay, ON201004180000Lake Superior 
1906309ONT Lake Superior, at Thunder Bay, ON201004180000Lake Superior 
1906312ONT Lake Superior, at Thunder Bay, ON201004180000Lake Superior 
1906371ONT Lake Superior, at Thunder Bay, ON201004180000Lake Superior 
1906374ONT Lake Superior, at Thunder Bay, ON201004180000Lake Superior 
1906378ONT Lake Superior, at Thunder Bay, ON201004180000Lake Superior 
1906381ONT Lake Superior, at Thunder Bay, ON201004180000Lake Superior 
1906479ONT Lake Superior, at Thunder Bay, ON201104180000Lake Superior 
1906486ONT Lake Superior, at Thunder Bay, ON201104180000Lake Superior 
1906488ONT Lake Superior, at Thunder Bay, ON201104180000Lake Superior 
1906493ONT Lake Superior, at Thunder Bay, ON201104180000Lake Superior 
1906497ONT Lake Superior, at Thunder Bay, ON201104180000Lake Superior 
1906499ONT Lake Superior, at Thunder Bay, ON201104180000Lake Superior 
1906506ONT Lake Superior, at Thunder Bay, ON201104180000Lake Superior 
1906510ONT Lake Superior, at Thunder Bay, ON201104180000Lake Superior 
1906511ONT Lake Superior, at Thunder Bay, ON201104180000Lake Superior 
1906515ONT Lake Superior, at Thunder Bay, ON201104180000Lake Superior 
1906522ONT Lake Superior, at Thunder Bay, ON201104180000Lake Superior 
1906528ONT Lake Superior, at Thunder Bay, ON201104180000Lake Superior 
1906531ONT Lake Superior, at Thunder Bay, ON201104180000Lake Superior 
1906535ONT Lake Superior, at Thunder Bay, ON201104180000Lake Superior 
1906539ONT Lake Superior, at Thunder Bay, ON201104180000Lake Superior 
1906541ONT Lake Superior, at Thunder Bay, ON201104180000Lake Superior 
1906544ONT Lake Superior, at Thunder Bay, ON201104180000Lake Superior 
1906549ONT Lake Superior, at Thunder Bay, ON201104180000Lake Superior 
1906553ONT Lake Superior, at Thunder Bay, ON201104180000Lake Superior 
1906556ONT Lake Superior, at Thunder Bay, ON201104180000Lake Superior 
1906561ONT Lake Superior, at Thunder Bay, ON201104180000Lake Superior 
1906749ONT Lake Superior, at Thunder Bay, ON201204180000Lake Superior 
1906753ONT Lake Superior, at Thunder Bay, ON201204180000Lake Superior 
1906761ONT Lake Superior, at Thunder Bay, ON201204180000Lake Superior 
1906781ONT Lake Superior, at Thunder Bay, ON201204180000Lake Superior 
1906799ONT Lake Superior, at Thunder Bay, ON201204180000Lake Superior 
1906909ONT Lake Superior, at Thunder Bay, ON201304180000Lake Superior 
1906914ONT Lake Superior, at Thunder Bay, ON201304180000Lake Superior 
1906915ONT Lake Superior, at Thunder Bay, ON201304180000Lake Superior 
1906918ONT Lake Superior, at Thunder Bay, ON201304180000Lake Superior 
1906920ONT Lake Superior, at Thunder Bay, ON201304180000Lake Superior 
1906925ONT Lake Superior, at Thunder Bay, ON201304180000Lake Superior 
1906926ONT Lake Superior, at Thunder Bay, ON201304180000Lake Superior 
1906929ONT Lake Superior, at Thunder Bay, ON201304180000Lake Superior 
1906940ONT Lake Superior, at Thunder Bay, ON201304180000Lake Superior 
1906950ONT Lake Superior, at Thunder Bay, ON201304180000Lake Superior 
1906957ONT Lake Superior, at Thunder Bay, ON201304180000Lake Superior 
1907085ONT Lake Superior, at Thunder Bay, ON201404180000Lake Superior 
1907087ONT Lake Superior, at Thunder Bay, ON201404180000Lake Superior 
1907089ONT Lake Superior, at Thunder Bay, ON201404180000Lake Superior 
1907092ONT Lake Superior, at Thunder Bay, ON201404180000Lake Superior 
1907102ONT Lake Superior, at Thunder Bay, ON201404180000Lake Superior 
1907122ONT Lake Superior, at Black Bay, ON201504180000Lake Superior 
1907125ONT Lake Superior, at Black Bay, ON201504180000Lake Superior 
1907143ONT Lake Superior, at Thunder Bay, ON201504180000Lake Superior 
1907277ONT Lake Superior, at Thunder Bay, ON201504180000Lake Superior 
1907279ONT Lake Superior, at Thunder Bay, ON201504180000Lake Superior 
1907281ONT Lake Superior, at Thunder Bay, ON201504180000Lake Superior 
1907287ONT Lake Superior, at Thunder Bay, ON201504180000Lake Superior 
1907290ONT Lake Superior, at Thunder Bay, ON201504180000Lake Superior 
1907295ONT Lake Superior, at Thunder Bay, ON201504180000Lake Superior 
1911046ONT Lake Superior, at Thunder Bay, ON202104180000Lake Superior 
1911048ONT Lake Superior, at Thunder Bay, ON202104180000Lake Superior 
1911051ONT Lake Superior, at Thunder Bay, ON202104180000Lake Superior 
1911054ONT Lake Superior, at Thunder Bay, ON202104180000Lake Superior 
1911056ONT Lake Superior, at Thunder Bay, ON202104180000Lake Superior 
1911059ONT Lake Superior, at Thunder Bay, ON202104180000Lake Superior 
1911061ONT Lake Superior, at Thunder Bay, ON202104180000Lake Superior 
1911063ONT Lake Superior, at Thunder Bay, ON202104180000Lake Superior 
1911066ONT Lake Superior, at Thunder Bay, ON202104180000Lake Superior 
1911068ONT Lake Superior, at Thunder Bay, ON202104180000Lake Superior 
1911071ONT Lake Superior, at Thunder Bay, ON202104180000Lake Superior 
1911074ONT Lake Superior, at Thunder Bay, ON202104180000Lake Superior 
1911076ONT Lake Superior, at Thunder Bay, ON202104180000Lake Superior 
1911077ONT Lake Superior, at Thunder Bay, ON202104180000Lake Superior 
1911079ONT Lake Superior, at Thunder Bay, ON202104180000Lake Superior 
1911081ONT Lake Superior, at Thunder Bay, ON202104180000Lake Superior 
1911086ONT Lake Superior, at Thunder Bay, ON202104180000Lake Superior 
1911089ONT Lake Superior, at Thunder Bay, ON202104180000Lake Superior 
1911091ONT Lake Superior, at Thunder Bay, ON202104180000Lake Superior 
1915616ONT Lake Superior, at Thunder Bay, ON202204180000Lake Superior 
1915617ONT Lake Superior, at Thunder Bay, ON202204180000Lake Superior 
1915622ONT Lake Superior, at Thunder Bay, ON202204180000Lake Superior 
1915626ONT Lake Superior, at Thunder Bay, ON202204180000Lake Superior 
1915628ONT Lake Superior, at Thunder Bay, ON202204180000Lake Superior 
1915629ONT Lake Superior, at Thunder Bay, ON202204180000Lake Superior 
1915630ONT Lake Superior, at Thunder Bay, ON202204180000Lake Superior 
1915632ONT Lake Superior, at Thunder Bay, ON202204180000Lake Superior 
1915634ONT Lake Superior, at Thunder Bay, ON202204180000Lake Superior 
1915635ONT Lake Superior, at Thunder Bay, ON202204180000Lake Superior 
1915637ONT Lake Superior, at Thunder Bay, ON202204180000Lake Superior 
1915639ONT Lake Superior, at Thunder Bay, ON202204180000Lake Superior 
1915640ONT Lake Superior, at Thunder Bay, ON202204180000Lake Superior 
1915641ONT Lake Superior, at Thunder Bay, ON202204180000Lake Superior 
1915643ONT Lake Superior, at Thunder Bay, ON202204180000Lake Superior 
1913727ONT Lake Superior, at St. Marys River, MI/ON202204200002St. Marys 
1913728ONT Lake Superior, at St. Marys River, MI/ON202204200002St. Marys 
1913729ONT Lake Superior, at St. Marys River, MI/ON202204200002St. Marys 
1913730ONT Lake Superior, at St. Marys River, MI/ON202204200002St. Marys 
1913731ONT Lake Superior, at St. Marys River, MI/ON202204200002St. Marys 
1913732ONT Lake Superior, at St. Marys River, MI/ON202204200002St. Marys 
1913733ONT Lake Superior, at St. Marys River, MI/ON202204200002St. Marys 
1913734ONT Lake Superior, at St. Marys River, MI/ON202204200002St. Marys 
1913735ONT Lake Superior, at St. Marys River, MI/ON202204200002St. Marys 
1915645ONT Lake Superior, at Thunder Bay, ON202204180000Lake Superior 
1915647ONT Lake Superior, at Thunder Bay, ON202204180000Lake Superior 
1915649ONT Lake Superior, at Thunder Bay, ON202204180000Lake Superior 
1915651ONT Lake Superior, at Thunder Bay, ON202204180000Lake Superior 
1915652ONT Lake Superior, at Thunder Bay, ON202204180000Lake Superior 
1915654ONT Lake Superior, at Thunder Bay, ON202204180000Lake Superior 
1915656ONT Lake Superior, at Thunder Bay, ON202204180000Lake Superior 
1915660ONT Lake Superior, at Thunder Bay, ON202204180000Lake Superior 
1915663ONT Lake Superior, at Thunder Bay, ON202204180000Lake Superior 
1915664ONT Lake Superior, at Thunder Bay, ON202204180000Lake Superior 
1915668ONT Lake Superior, at Thunder Bay, ON202204180000Lake Superior 
1915670ONT Lake Superior, at Thunder Bay, ON202204180000Lake Superior 
1915672ONT Lake Superior, at Thunder Bay, ON202204180000Lake Superior 
1915676ONT Lake Superior, at Thunder Bay, ON202204180000Lake Superior 
1915679ONT Lake Superior, at Thunder Bay, ON202204180000Lake Superior 
1915682ONT Lake Superior, at Thunder Bay, ON202204180000Lake Superior 
1915685ONT Lake Superior, at Thunder Bay, ON202204180000Lake Superior 
1915694ONT Lake Superior, at Thunder Bay, ON202204180000Lake Superior 
1915698ONT Lake Superior, at Thunder Bay, ON202204180000Lake Superior 
1916753ONT Lake Superior, at Thunder Bay, ON202304180000Lake Superior 
1916756ONT Lake Superior, at Thunder Bay, ON202304180000Lake Superior 
1916759ONT Lake Superior, at Thunder Bay, ON202304180000Lake Superior 
1916761ONT Lake Superior, at Thunder Bay, ON202304180000Lake Superior 
1916764ONT Lake Superior, at Thunder Bay, ON202304180000Lake Superior 
1916768ONT Lake Superior, at Thunder Bay, ON202304180000Lake Superior 
1916770ONT Lake Superior, at Thunder Bay, ON202304180000Lake Superior 
1916772ONT Lake Superior, at Thunder Bay, ON202304180000Lake Superior 
1916774ONT Lake Superior, at Thunder Bay, ON202304180000Lake Superior 
1916779ONT Lake Superior, at Thunder Bay, ON202304180000Lake Superior 
1916791ONT Lake Superior, at Thunder Bay, ON202304180000Lake Superior 
1916794ONT Lake Superior, at Thunder Bay, ON202304180000Lake Superior 
1916797ONT Lake Superior, at Thunder Bay, ON202304180000Lake Superior 
1916809ONT Lake Superior, at Thunder Bay, ON202304180000Lake Superior 
1916811ONT Lake Superior, at Thunder Bay, ON202304180000Lake Superior 
1916814ONT Lake Superior, at Thunder Bay, ON202304180000Lake Superior 
1916818ONT Lake Superior, at Thunder Bay, ON202304180000Lake Superior 
1917887ONT Lake Superior, at St. Marys River, MI/ON202304200002St. Marys 
1921366ONT Lake Huron, at St. Marys River, MI/ON202404200002St. Marys 
1921370ONT Lake Huron, at St. Marys River, MI/ON202404200002St. Marys 
1922159ONT Lake Superior, at Thunder Bay, ON202504180000Lake Superior 
1922166ONT Lake Superior, at Thunder Bay, ON202504180000Lake Superior 
1922294ONT Lake Superior, at Thunder Bay, ON202504180000Lake Superior 
1922392ONT Lake Superior, at Thunder Bay, ON202504180000Lake Superior 
1922470ONT Lake Superior, at Thunder Bay, ON202504180000Lake Superior 
1922490ONT Lake Superior, at Thunder Bay, ON202504180000Lake Superior 
1922507ONT Lake Superior, at Thunder Bay, ON202504180000Lake Superior 
1922539ONT Lake Superior, at Thunder Bay, ON202504180000Lake Superior 
1922604ONT Lake Superior, at Thunder Bay, ON202504180000Lake Superior 
1922630ONT Lake Superior, at Thunder Bay, ON202504180000Lake Superior 
1922645ONT Lake Superior, at Thunder Bay, ON202504180000Lake Superior 
1922651ONT Lake Superior, at Thunder Bay, ON202504180000Lake Superior 
1922676ONT Lake Superior, at Thunder Bay, ON202504180000Lake Superior 
1922678ONT Lake Superior, at Thunder Bay, ON202504180000Lake Superior 
1922679ONT Lake Superior, at Thunder Bay, ON202504180000Lake Superior 
1922699ONT Lake Superior, at Thunder Bay, ON202504180000Lake Superior 
1922898ONT Lake Superior, at Thunder Bay, ON202504180000Lake Superior 
1923012ONT Lake Superior, at Thunder Bay, ON202504180000Lake Superior 
1923147ONT Lake Superior, at Thunder Bay, ON202504180000Lake Superior 
1923280ONT Lake Superior, at Thunder Bay, ON202504180000Lake Superior 
1924156ONT Lake Huron, at St. Marys River, MI/ON202504200002St. Marys 
1924267ONT Lake Huron, at St. Marys River, MI/ON202504200002St. 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