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 IDStateCountyLocalityYearHUC NumberDrainage NameStatus
269024MNSt. LouisLake Superior near Duluth, MN198604010201St. Louisestablished
35871MNSt. LouisSt. Louis River near Lake Superior198704010201St. Louisestablished
35870MNSt. LouisSt. Louis River near Lake Superior198704010201St. Louisestablished
35872MNSt. LouisSt. Louis River near Lake Superior198704010201St. Louisestablished
35633MNSt. LouisSt. Louis River estuary where it flows into Lake Superior near Duluth198804010201St. Louisestablished
35645MNSt. LouisLake Superior at Stony Point (Sucker Bay) on the northwest shore about 13 miles northeast of Duluth199104180000Lake Superiorestablished
35650MNCookLake Superior, at a power plant in Taconite Harbor, MN199704180000Lake Superiorestablished
35951MNSt. LouisSt. Louis River near Lake Superior199904010201St. Louisestablished
35952MNSt. LouisSt. Louis River near Lake Superior199904010201St. Louisestablished
35953MNSt. LouisSt. Louis River near Lake Superior199904010201St. Louisestablished
35894MNLakeLake Superior outside of Two Harbors lat: 47 00.17N long: 91 40.81 W199504180000Lake Superiorestablished
158844MNSt. LouisSt. Louis Bay200104010201St. Louisestablished
159012MNSt. LouisSt. Louis River at Lake Superior200204010201St. Louisestablished
159013MNSt. LouisSt. Louis River at Lake Superior200204010201St. Louisestablished
159015MNSt. LouisSt. Louis River at Lake Superior200204010201St. Louisestablished
164465MNSt. LouisSt. Louis River estuary where it flows into Lake Superior near Duluth200204010201St. Louisestablished
276823MNSt. LouisSt. Louis River at Lake Superior200604010201St. Louisestablished
849258MNSt. LouisSt Louis River just E of Knowiton Creek mouth201304010201St. Louisestablished
849228MNSt. LouisSt Louis River just E of Duluth201104010201St. Louisestablished
849274MNSt. LouisSt Louis River just S of Miller Creek mouth201104010201St. Louisestablished
849241MNSt. LouisSt Louis River just W of Oliver & N of Bear Island201104010201St. Louisestablished
1247509MNSt. LouisLake Superior, off Superior, Wisconsin201504180000Lake Superiorestablished
1247613MNSt. LouisLake Superior, St. Louis River201504010201St. Louisestablished
1247618MNSt. LouisSt. Louis River, near mouth201504010201St. Louisestablished
1247619MNSt. LouisSt. Louis River201504010201St. Louisestablished
1247616MNSt. LouisLake Superior, St. Louis River at mouth201504180000Lake Superiorestablished
1658430MNLakeMn, Lake County, derived from map in original source201604010102Beaver-Lesterestablished
1658444MNSt. LouisMN, St. Louis Co., derived from map in report201604010201St. Louisestablished
1658453MNSt. LouisDuluth Harbor, derived from map in report201604010201St. Louisestablished
1658456MNSt. LouisSt. Louis River estuary, derived from map in report201604010201St. Louisestablished
1658435MNSt. LouisMN, St. Louis Co., derived from map in report201604180000Lake Superiorestablished
1401477MNSt. LouisSt. Louis River200804180000Lake Superiorestablished
1401479MNSt. LouisSt. Louis River200804180000Lake Superiorestablished
1401416MNSt. LouisSt. Louis River200804010201St. Louisestablished
1401489MNSt. LouisSt. Louis River200804010201St. Louisestablished
1401418MNSt. LouisSt. Louis River200804010201St. Louisestablished
1401419MNSt. LouisSt. Louis River200804010201St. Louisestablished
1401532MNSt. LouisSt. Louis River200804010201St. Louisestablished
1401491MNSt. LouisSt. Louis River200804180000Lake Superiorestablished
1401480MNSt. LouisSt. Louis River200804180000Lake Superiorestablished
1401420MNSt. LouisSt. Louis River200804180000Lake Superiorestablished
1401492MNSt. LouisSt. Louis River, near mouth of Miller Creek200804010201St. Louisestablished
1401533MNSt. LouisSt. Louis River200804010201St. Louisestablished
1401588MNSt. LouisSt. Louis River200904010201St. Louisestablished
1401496MNSt. LouisSt. Louis River200904010201St. Louisestablished
1401549MNSt. LouisSt. Louis River201004010201St. Louisestablished
1401514MNSt. LouisSt. Louis River201004010201St. Louisestablished
1401462MNSt. LouisSt. Louis River201004010201St. Louisestablished
1401568MNSt. LouisSt. Louis River201004010201St. Louisestablished
1401430MNSt. LouisSt. Louis River201004010201St. Louisestablished
1401454MNSt. LouisSt. Louis River201004010201St. Louisestablished
1401443MNSt. LouisSt. Louis River201004010201St. Louisestablished
1401424MNSt. LouisSt. Louis River201004180000Lake Superiorestablished
1401442MNSt. LouisSt. Louis River201004180000Lake Superiorestablished
1401370MNSt. LouisSt. Louis River201004180000Lake Superiorestablished
1401590MNSt. LouisSt. Louis River201104180000Lake Superiorestablished
1401373MNSt. LouisSt. Louis River201104180000Lake Superiorestablished
1401570MNSt. LouisSt. Louis River201104180000Lake Superiorestablished
1401594MNSt. LouisSt. Louis River201104180000Lake Superiorestablished
1401553MNSt. LouisSt. Louis River201104010201St. Louisestablished
1401465MNSt. LouisSt. Louis River201104010201St. Louisestablished
1401518MNSt. LouisSt. Louis River201104010201St. Louisestablished
1401571MNSt. LouisSt. Louis River201104010201St. Louisestablished
1401357MNSt. LouisSt. Louis River201104010201St. Louisestablished
1401310MNSt. LouisSt. Louis River201104010201St. Louisestablished
1401526MNSt. LouisSt. Louis River201204010201St. Louisestablished
1401316MNSt. LouisSt. Louis River201204180000Lake Superiorestablished
1401321MNSt. LouisSt. Louis River201204180000Lake Superiorestablished
1401440MNSt. LouisSt. Louis River201204180000Lake Superiorestablished
1401368MNSt. LouisSt. Louis River201204180000Lake Superiorestablished
1401384MNSt. LouisSt. Louis River201204010201St. Louisestablished
1401336MNSt. LouisSt. Louis River201204010201St. Louisestablished
1401541MNSt. LouisSt. Louis River201204010201St. Louisestablished
1401557MNSt. LouisSt. Louis River201204180000Lake Superiorestablished
1401524MNSt. LouisSt. Louis River201304180000Lake Superiorestablished
1401484MNSt. LouisSt. Louis River201304180000Lake Superiorestablished
1401412MNSt. LouisSt. Louis River201304180000Lake Superiorestablished
1401595MNSt. LouisSt. Louis River201304180000Lake Superiorestablished
1401450MNSt. LouisSt. Louis River201304010201St. Louisestablished
1401414MNSt. LouisSt. Louis River201304010201St. Louisestablished
1401360MNSt. LouisSt. Louis River201304010201St. Louisestablished
1401348MNSt. LouisSt. Louis River201304010201St. Louisestablished
1401382MNSt. LouisSt. Louis River201404010201St. Louisestablished
1401448MNSt. LouisSt. Louis River201404010201St. Louisestablished
1401502MNSt. LouisSt. Louis River201404010201St. Louisestablished
1401365MNSt. LouisSt. Louis River201404180000Lake Superiorestablished
1401544MNSt. LouisSt. Louis River201404180000Lake Superiorestablished
1401527MNSt. LouisSt. Louis River201404180000Lake Superiorestablished
1401391MNSt. LouisSt. Louis River201504010201St. Louisestablished
1401341MNSt. LouisSt. Louis River201504010201St. Louisestablished
1401354MNSt. LouisSt. Louis River201504010201St. Louisestablished
1401505MNSt. LouisSt. Louis River201504180000Lake Superiorestablished
1401546MNSt. LouisSt. Louis River201504180000Lake Superiorestablished
1401328MNSt. LouisSt. Louis River201604180000Lake Superiorestablished
1401377MNSt. LouisSt. Louis River201604010201St. Louisestablished
1401401MNSt. LouisSt. Louis River201604180000Lake Superiorestablished
1401476MNSt. LouisSt. Louis River201604180000Lake Superiorestablished
1401599MNSt. LouisSt. Louis River201604180000Lake Superiorestablished
1401389MNSt. LouisSt. Louis River201604180000Lake Superiorestablished
1401319MNSt. LouisSt. Louis River201604010201St. Louisestablished
1401343MNSt. LouisSt. Louis River201604010201St. Louisestablished
1401499MNSt. LouisSt. Louis River201604010201St. Louisestablished
1401603MNSt. LouisSt. Louis River201604010201St. Louisestablished
1401587MNSt. LouisSt. Louis River201604010201St. Louisestablished
1598201MNLake[No locality description provided]201104180000Lake Superiorestablished
1602007MNSt. Louis[No locality description provided]201204180000Lake Superiorestablished
1554515MNSt. Louis[No locality description provided]201004010201St. Louisestablished
1658388MNSt. LouisKnowlton Creek201704010201St. Louisestablished
1658391MNSt. LouisKingsbury Creek201704010201St. Louisestablished
1658398MNSt. LouisMiller Creek201704010201St. Louisestablished
1658404MNSt. LouisTischer Creek201704180000Lake Superiorestablished
1658414MNLakeGooseberry River201704180000Lake Superiorestablished
1685326MNSt. LouisChester Creek199604010102Beaver-Lesterunknown
1702355MNSt. LouisDuluth Harbor in Lake Superior198704180000Lake Superior 
1710606MNCookLake Superior, Michigan200004180000Lake Superior 
1715766MNSt. LouisSt. Louis Harbor, Duluth, MN199504180000Lake Superior 
1715767MNSt. LouisSt. Louis Harbor, Duluth, MN200604180000Lake Superior 
1715768MNSt. LouisSt. Louis Harbor, Duluth, MN201404180000Lake Superior 
1736740MNLakeLake Superior, approximately 1.7 miles northeast of Two Harbors harbor202404180000Lake Superior 
1891238MNSt. Louis[No locality description provided]202504180000Lake Superior 

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