| Specimen ID | 166707 |
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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 | Chippewa |
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| Locality | Tahquamenon River at the mouth into Lake Superior |
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| HUC8 Name | Tahquamenon |
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| HUC8 Number | 4020202 |
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| Latitude | 46.5553 |
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| Longitude | -85.0297 |
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| Lat-Long Source | Map derived |
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| Lat-Long Accuracy | accurate |
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| Map | |
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| Day | 3 |
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| Month | 5 (May) |
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| Year | 2006 |
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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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| Record Type | Personal communication |
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| Verifier | Gary Czypinski, USFWS, Ashland, WI |
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| Fresh/Marine Introduction | Freshwater |
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| Number Collected/Observed | 1 |
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| Year Class | adult |
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