| Specimen ID | 1543286 |
| Group | Fishes |
| Genus | Gambusia |
| Species | affinis |
| Common Name | Western Mosquitofish |
| State | IL |
| County | Will |
| Locality | Right descending wall, downstream of Cargill boat ramp |
| Mapping Accuracy | Accurate |
| HUC8 Name | Des Plaines |
| HUC8 Number | 07120004 |
| HUC10 Name | Chicago Sanitary and Ship Canal-Des Plaines River |
| HUC10 Number | 0712000407 |
| HUC12 Name | Maple Lake-Chicago Sanitary and Ship Canal |
| HUC12 Number | 071200040705 |
| Map | |
| Collection Day | 13 |
| Collection Month | 8 |
| Collection Year | 2017 |
| Year Accuracy | Actual |
| Potential Pathway | stocked for biocontrol | dispersed |
| Status | established |
| Reference 1 |
| Ref. Number: | 32270 |
| Author: | Belcik, J.T. |
| Date: | 2018 |
| Title: | Nonindigenous Fishes in the Upper Illinois River Basin Waterways (2013-2018) |
| Publisher: | U.S. Army Corps of Engineers |
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| Record Type | Literature |
| Verifier | US Army Corps of Engineers |
| Freshwater/Marine | Freshwater |
| Number Collected | 4 |
