Invasion
Invasion Description
1st Record: San Juan Island/WA/Mitchell Bay (4/5/1973, Norris and Conway 1974
Geographic Extent
San Juan Island/WA/Mitchell Bay (4/5/1973, Norris and Conway 1974); Friday Harbor Laboratories, San Juan Island/WA/Friday Harbor (4/13/1973, Norris and Conway 1974)
Vectors
| Level | Vector |
|---|---|
| Alternate | Natural Dispersal |
| Alternate | Dry Ballast |
| Alternate | Hull Fouling |