Invasion
Invasion Description
1st Record:: Marin County/CA/Walker Creek Delta, Tomales Bay; (1969, Chapman and Dorman 1975)
Geographic Extent
Marin County/CA/Walker Creek Delta, Tomales Bay; (1969, Chapman and Dorman 1975; 2011, California Department of Fish and Wildlife 2014)
Vectors
| Level | Vector |
|---|---|
| Alternate | Natural Dispersal |
| Alternate | None |
| Alternate | Oyster Accidental |