| Specimen ID | 35545 |
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| Group | Fishes |
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| Genus | Gymnocephalus |
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| Species | cernuus |
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| Common Name | ruffe |
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| State | MI |
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| County | Alpena |
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| Locality | Thunder Bay (River Shipping Channel) |
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| HUC8 Name | Lake Huron |
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| HUC8 Number | 4080300 |
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| Day | 21 |
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| Month | 9 (September) |
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| Year | 1999 |
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| Year Accuracy (Specimen) | Actual |
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| Contact | [not displayed for privacy reasons] |
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| Primary Pathway | shipping ballast water |
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| Status | established |
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| Reference #1 | | Ref. Number | 13438 |
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| Author | Czypinski, G. D., A. K. Hintz, M. T. Weimer, A. Dextrase. |
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| date | 2000 |
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| title | Surveillance for ruffe in the Great Lakes, 1999. |
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| publisher | U.S. Fish and Wildlife Service, Ashland, WI |
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| pages | 29 p. |
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| Comments | From: Surveillance for Ruffe in the Great Lakes, 1999 report by U.S. Fish and Wildlife Service, March 2000, 29 pp. |
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| Record Type | Personal communication |
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| Verifier | U.S. Fish & Wildlife Service, Alpena, MI |
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| Fresh/Marine Introduction | Freshwater |
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| Number Collected/Observed | 126 |
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