| Specimen ID | 164748 |
| Group | Fishes |
| Genus | Oreochromis |
| Species | mossambicus |
| Common Name | Mozambique Tilapia |
| State | AZ |
| County | Cochise |
| Locality | springs in The Nature Conservancy's Ramsey Canyon Preserve in the Huachuca Mountains |
| Mapping Accuracy | Accurate |
| HUC8 Name | Upper San Pedro |
| HUC8 Number | 15050202 |
| HUC10 Name | Banning Creek-San Pedro River |
| HUC10 Number | 1505020206 |
| HUC12 Name | Carr Canyon |
| HUC12 Number | 150502020605 |
| Map | |
| Collection Year | 1982 |
| Year Accuracy | Actual |
| Potential Pathway | escaped captivity aquaculture |
| Status | established |
| Reference 1 |
| Ref. Number: | 14843 |
| Author: | U.S. Fish and Wildlife Service. |
| Date: | 1997 |
| Title: | U.S. FISH & WILDLIFE ANNOUNCEMENT THAT FIVE SPECIES HAVE BECOME EXTINCT WHILE WAITING FOR ENDANGERED SPECIES ACT PROTECTION. |
| Journal: | Federal Register |
| Volume: | 62 |
| Issue: | 182 |
| Pages: | 49191-49193 |
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| Comments | In 1982, the California Department of Fish and Game issued an aquaculture permit to the landowner of the California site to rear Mozambique tilapia (Oreochromis mossambica). Inadequate screening of the rearing facilities allowed tilapia to escape into the spring system. |
| Record Type | Literature |
| Earliest Record | locale |
| Freshwater/Marine | Freshwater |
| Specimen Impact | The High Rock Spring tui chub (Gila bicolor ssp.), a small minnow, was historically known from three formerly connected spring systems in California and Nevada. This fish was extirpated from the two sites in Nevada as a result of increased pumping of groundwater adjacent to the surface pools it inhabited. In 1982, the California Department of Fish and Game issued an aquaculture permit to the landowner of the California site to rear Mozambique tilapia (Oreochromis mossambica). Inadequate screening of the rearing facilities allowed tilapia to escape into the spring system. By 1989, the High Rock Spring tui chub was extirpated from the site as a result of competition from and predation by the introduced tilapia. The High Rock Spring tui chub was confirmed to be extinct in 1993. Because it is considered extinct, the High Rock Spring tui chub is being removed from the list of candidate taxa. |
