| Specimen ID | State | County | Locality | Year | HUC Number | Drainage Name | Status |
| 157337 | MI | Houghton | Lake Superior, Jacobsville | 1987 | 04020103 | Keweenaw Peninsula | established |
| 263202 | MI | Houghton | Lake Superior, Jacobsville | 1987 | 04020103 | Keweenaw Peninsula | established |
| 157503 | MI | Keweenaw | Hill Creek, Lake Superior | 1987 | 04020103 | Keweenaw Peninsula | established |
| 849236 | MI | Houghton | Portage Lake across from Mill Point | 2012 | 04020103 | Keweenaw Peninsula | established |
| 849342 | MI | Houghton | Pilgrim River at mouth | 2013 | 04020103 | Keweenaw Peninsula | established |
| 1565569 | MI | Houghton | [No locality description provided] | 2014 | 04020103 | Keweenaw Peninsula | established |
Citation for this information:
U.S. Geological Survey, 2026,
Alosa pseudoharengus: U.S. Geological Survey, Nonindigenous Aquatic Species Database, Gainesville, FL, https://nas.er.usgs.gov, Access Date: 2/12/2026