| Specimen ID | 117509 |
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| Group | Mollusks-Bivalves |
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| Genus | Dreissena |
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| Species | polymorpha |
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| Common Name | zebra mussel |
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| State | PA |
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| County | Westmoreland |
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| Locality | Monongahela River (R.M. 41.5) at Lock 4 near Monesson, PA |
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| HUC8 Name | Lower Monongahela |
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| HUC8 Number | 5020005 |
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| Latitude | 40.1467437744 |
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| Longitude | -79.9003295898 |
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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 | 25 |
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| Month | 6 (June) |
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| Year | 1996 |
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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 |
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| Status | established |
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| Record Type | Personal communication |
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| Disposal | USACOE-Conemaugh Office |
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| Verifier | Linda Stafford, biologist, USACOE-Pittsburgh Distr |
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| Fresh/Marine Introduction | Freshwater |
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| Number Collected/Observed | 13 |
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| Year Class | adult |
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| Specimen Size | 12 - 34 mm |
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