| Specimen ID | 1320660 |
| Group | Mollusks-Bivalves |
| Genus | Dreissena |
| Species | polymorpha |
| Common Name | zebra mussel |
| State | PA |
| County | Luzerne |
| Locality | Lake Took-A-While, near Berwick |
| Mapping Accuracy | Accurate |
| HUC8 Name | Upper Susquehanna-Lackawanna |
| HUC8 Number | 02050107 |
| HUC10 Name | Middle Susquehanna River |
| HUC10 Number | 0205010703 |
| HUC12 Name | City of Berwick-Susquehanna River |
| HUC12 Number | 020501070307 |
| Map | |
| Collection Day | 16 |
| Collection Month | 5 |
| Collection Year | 2016 |
| Year Accuracy | Actual |
| Potential Pathway | hitch hiker on small watercraft | dispersed |
| Status | established |
| Comments | Very abundant on every hard substrate including the riprap on eastern shore of lake. |
| Record Type | Personal communication |
| Freshwater/Marine | Freshwater |
| Year Class | adult |
