| Specimen ID | 157283 |
| Group | Crustaceans-Cladocerans |
| Genus | Bythotrephes |
| Species | longimanus |
| Common Name | spiny waterflea |
| Country | Canada |
| State | ON |
| Locality | Loon Lake, just west of Gravenhurst, near Turtle |
| Mapping Accuracy | Approximate |
| HUC8 Name | Severn River-Lake Simcoe |
| HUC8 Number | 04220003 |
| Map | |
| Collection Month | 8 |
| Collection Year | 1999 |
| Year Accuracy | Actual |
| Potential Pathway | shipping ballast water |
| Status | established |
| Record Type | Personal communication |
| Freshwater/Marine | Freshwater |
