| Specimen ID | 116417 |
| Group | Mollusks-Bivalves |
| Genus | Dreissena |
| Species | polymorpha |
| Common Name | zebra mussel |
| State | IN |
| County | Porter |
| Locality | Lake Michigan, Indiana Dunes National Seashore - Kemil Beach, about 1 mile east of entrance |
| Mapping Accuracy | Accurate |
| HUC8 Name | Little Calumet-Galien |
| HUC8 Number | 04040001 |
| HUC10 Name | Lake Michigan |
| HUC10 Number | 0404000106 |
| HUC12 Name | Lake Michigan |
| HUC12 Number | 040400010605 |
| Map | |
| Collection Day | 21 |
| Collection Month | 9 |
| Collection Year | 1991 |
| Year Accuracy | Actual |
| Potential Pathway | shipping |
| Status | established |
| Comments | Numbers of mussels washed up on beach estimated at greater than ten thousand. First (Aquasphere) documentation of mussels attaching to algae. Possibly due to limited hard surfaces. |
| Record Type | Literature |
| Verifier | The Aquasphere Project, Dolton, IL |
| Freshwater/Marine | Freshwater |
