Invasion
Invasion Description
1st Record: Portland/OR/Columbia River-Willamette River (Lampman 1946)
Geographic Extent
OR-WA/Columbia River-Willamette River (Lampman 1946; Hughes and Gammon 1987; Farr and Ward 1993); OR/Willamette River (Rkm 0.3-27, Farr and Ward 1993); Dibblee Point northwest of Rainer/OR/Dibblee's Slough, Columbia River (2001, USGS Nonindigenous Aquatic Species Program 2014)
Vectors
| Level | Vector |
|---|---|
| Probable | Fisheries Intentional |
Regional Impacts
| Economic Impact | Fisheries | |
| Brown Bullheads are a popular pan-sized sport fish in the Columbia River but they do not appear to be specifically targeted by fishers, There was a commercial fishery for catfish (mostly Brown Bullhead) from 1890 to 1913, after which, it was declared a game fish by the state legislature (Lampman 1946). | ||