Invasion
Invasion Description
1st Record: Long Beach/OR/Willapa Bay tributaries (2002, Davidson et al. 2008)
Geographic Extent
Long Beach/OR/Willapa Bay tributaries (2007, Davidson et al. 2008); east side of SR 4 at MP 0.7/WA/Naselle River tributary (3/19/2014, USGS Nonindigenous Aquatic Species Program 2014)
Vectors
| Level | Vector |
|---|---|
| Alternate | Fisheries Accidental (not Oyster) |
| Alternate | Natural Dispersal |
| Alternate | Hull Fouling |