| Specimen ID | 116566 |
| Group | Mollusks-Bivalves |
| Genus | Dreissena |
| Species | polymorpha |
| Common Name | zebra mussel |
| State | WI |
| County | Milwaukee |
| Locality | Lake Michigan, Milwaukee Harbor, Center for Great Lakes Studies dock |
| Mapping Accuracy | Accurate |
| HUC8 Name | Milwaukee |
| HUC8 Number | 04040003 |
| HUC10 Name | Lower Milwaukee River-Frontal Lake Michigan |
| HUC10 Number | 0404000306 |
| HUC12 Name | Milwaukee River |
| HUC12 Number | 040400030606 |
| Map | |
| Collection Day | 26 |
| Collection Month | 8 |
| Collection Year | 1991 |
| Year Accuracy | Actual |
| Potential Pathway | shipping |
| Status | established |
| Comments | density(/sq.m): 1717.95 depth(m): 3 secchi disk (m): 1.1 Bottom type: silt/mud |
| Record Type | Personal communication |
| Verifier | Wisconsin Sea Grant, Green Bay, Wisc. |
| Freshwater/Marine | Freshwater |
| Year Class | juvenile |
