Invasion
Invasion Description
Probably present by 1875-1880
Geographic Extent
Marshfield, Brant Rock/MA/Cape Cod Bay (MCZ 182297, Museum of Comparative Zoology 2008)
Vectors
| Level | Vector |
|---|---|
| Alternate | Hull Fouling |
| Alternate | Dry Ballast |
| Alternate | Natural Dispersal |