| Specimen ID | 117084 |
| Group | Mollusks-Bivalves |
| Genus | Dreissena |
| Species | polymorpha |
| Common Name | zebra mussel |
| State | MI |
| County | Washtenaw |
| Locality | Portage Lake, southeast portion of lake near the outlet to the Huron River. |
| Mapping Accuracy | Accurate |
| HUC8 Name | Huron |
| HUC8 Number | 04100013 |
| HUC10 Name | Portage River-Huron River |
| HUC10 Number | 0410001303 |
| HUC12 Name | Portage Lake-Huron River |
| HUC12 Number | 041000130307 |
| Map | |
| Collection Day | 25 |
| Collection Month | 4 |
| Collection Year | 1994 |
| Year Accuracy | Actual |
| Potential Pathway | shipping |
| Status | established |
| Comments | The two mussel were found in different areas in the southeast portion of the lake. |
| Record Type | Personal communication |
| Disposal | dried |
| Verifier | Paul Marangelo, NOAA, 313-633-5827 |
| Freshwater/Marine | Freshwater |
| Number Collected | 2 |
| Year Class | adult |
| Size | 16 - 20 mm |
