Invasion
Invasion Description
1st Record: Whatcom County/WA/Birch Bay (Duggan 1963, cited by Carlton 1979)
Geographic Extent
Whatcom County/WA/Birch Bay (Duggan 1963, cited by Carlton 1979)
Vectors
| Level | Vector |
|---|---|
| Alternate | Oyster Accidental |
| Alternate | Dry Ballast |
| Alternate | Cargo |