Invasion
Invasion Description
1st Record: San Juan Island/WA/Friday Harbor (1950, Carlton 1979)
Geographic Extent
San Juan Island/WA/Friday Harbor (1950, Carlton 1979, Meyer and Byers 2005); San Juan Island/WA/Argyle Lagoon, Juan de Fuca Straits (1958, Academy of Natural Sciences of Philadelphia 2004); San Juan Islands/WA/Juan de Fuca Straits (1975, Carlton 1979)
Vectors
| Level | Vector |
|---|---|
| Alternate | Oyster Accidental |
| Alternate | Fisheries Intentional |
| Alternate | Natural Dispersal |