Invasion
Invasion Description
1st record: WA/Grays Harbor (1974, Hobson 1976, cited by Carlton 1979)
Geographic Extent
WA/Grays Harbor (1974, Hobson 1976, cited by Carlton 1979; Wilson and Partidge 2007); Cohassett Beach/WA/Beardslee Slough (1999, Wilson and Partidge 2007)
Vectors
| Level | Vector |
|---|---|
| Alternate | Ballast Water |
| Alternate | Hull Fouling |
| Alternate | Oyster Accidental |