Invasion
Invasion Description
1st Record: Salem-Portland/OR/Willamette River ((1891, Lampman 1946)
Geographic Extent
Salem-Portland/OR/Willamette River ((1891, Lampman 1946; Hughes and Gammon 1987; Far rand Ward 1991); Portland/OR/Columbia Slough (Van Dyke et al. 2009); Mount Coffin, Longview/WA/Columbia River (1904, Lampman 1904); north of Knappa junction or Brownsmead junction off hwy 30/OR/Blind Slough (2001, USGS Nonindigenous Aquatic Species Program 2014); off Multnomah channel north of Scappoose, approximately 2.7 miles beyond Columbia County airport via Dike Road off hwy 30/OR/Santosh Slough, USGS Nonindigenous Aquatic Species Program 2014); Reaches B-H, lower to uppermost estuary (@010-216, Sol et al. 2021)
Vectors
| Level | Vector |
|---|---|
| Probable | Fisheries Accidental (not Oyster) |
Regional Impacts
| Economic Impact | Fisheries | |
Yellow Perch are a popular sport-fish and panfish. Websites indicate that fishing for Yellow Perch is popular in sloughs and lakes along the river. | ||