| Specimen ID | 156409 |
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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 | Ontonagon |
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| Locality | Ontonagon River |
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| HUC8 Name | Ontonagon |
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| HUC8 Number | 4020102 |
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| Day | 9 |
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| Month | 5 (May) |
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| Year | 2001 |
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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 | 13437 |
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| Author | Czypinski, G. D., A. K. Bowen, M. T. Weimer, A. Dextrase |
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| date | 2002 |
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| title | Surveillance for ruffe in the Great Lakes, 2001. |
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| publisher | U.S. Fish and Wildlife Service, Ashland, WI |
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| pages | 36 p. |
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|
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| Record Type | Literature |
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| Fresh/Marine Introduction | Freshwater |
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| Number Collected/Observed | 3 |
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