| Specimen ID | 157245 |
| Group | Crustaceans-Cladocerans |
| Genus | Bythotrephes |
| Species | longimanus |
| Common Name | spiny waterflea |
| Country | Canada |
| State | ON |
| County | Muskoka |
| Locality | Lake Joseph |
| Mapping Accuracy | Accurate |
| HUC8 Name | Lake Muskoka-Frontal Lake Huron |
| HUC8 Number | 04220002 |
| HUC10 Name | Lake Muskoka-Frontal Lake Huron |
| HUC10 Number | 0422000200 |
| HUC12 Name | Lake Muskoka-Frontal Lake Huron |
| HUC12 Number | 042200020000 |
| Map | |
| Collection Day | 12 |
| Collection Month | 6 |
| Collection Year | 1989 |
| Year Accuracy | Actual |
| Potential Pathway | shipping ballast water |
| Status | established |
| Reference 1 |
| Ref. Number: | 9169 |
| Author: | Yan, N.D., W.I. Dunlop, T.W. Pawson, and L.E. MacKay |
| Date: | 1992 |
| Title: | Bythotrephes cederstroemi (Schoedler) in Muskoka Lakes: first records of the European invader in inland lakes in Canada. |
| Journal: | Canadian Journal of Fisheries and Aquatic Sciences |
| Volume: | 49 |
| Pages: | 422-426 |
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| Record Type | Personal communication |
| Freshwater/Marine | Freshwater |
| Number Collected | 2 |
