Invasion
Invasion Description
1st Record: Edmonds Underwater Park, Edmonds/WA/Puget Sound (2004, USGS Woods Hole Science Center 2007; Bullard et al. 2007, eradication attempted by divers in 2004, unsuccessful )
Geographic Extent
Edmonds Underwater Park, Edmonds/WA/Puget Sound (eradication attempted) (2004, USGS Woods Hole Science Center 2007; Bullard et al. 2007); Des Moines Marina/WA/Puget Sound (2004, USGS Woods Hole Science Center 2007); Taylor Shellfish Farms/WA/Gallagher Cove, Totten Inlet (2004, USGS Woods Hole Science Center 2007; Cordell et al. 2012); Pleasant Harbor/WA/Hood Canal (2010, Cordell et al. 2012)
Vectors
| Level | Vector |
|---|---|
| Alternate | Hull Fouling |
| Alternate | Fisheries Accidental (not Oyster) |
| Alternate | Oyster Accidental |
Regional Impacts
| Economic Impact | Fisheries | |
| Didemnum vexillum was found fouling shellfish cages and other aquaculture structures at Taylor Shellfish Farms, Quilcene, WA, and in Gallagher Cove, WA, Puget Sound (USGS Woods Hole Science Center 2008). | ||
| Ecological Impact | Habitat Change | |
| The introduced isopod Ianiropsis serricaudis occurred in high abundance with D. vexillum at Taylor Shellifish Frams, Puget Sound, but not found at other sites in the Sound (Cordell et al. 2012). | ||