Invasion
Invasion Description
1st Record: CA/Tomales Bay (2001, Bullard et al. 2007)
Geographic Extent
CA/Tomales Bay (2001, Bullard et al. 2007; 2011, California Department of Fish and Wildlife 2014); Clark/CA/Tomales Bay (2004, de Rivera et al. 2005a); Marshall/CA/Tomales Bay (2004, de Rivera et al. 2005a); Miller Park/CA/Tomales Bay (2004, de Rivera et al. 2005)a; Sacramento Landing/CA/Tomales Bay (2004, de Rivera et al. 2005a); Thomas Station/CA/Tomales Bay (2004, de Rivera et al. 2005a)
Vectors
| Level | Vector |
|---|---|
| Alternate | None |
| Alternate | Oyster Accidental |
Regional Impacts
| Ecological Impact | Competition | |
| Didemnum vexillum overgrowth had a modest effect on the growth of eelgrass (Zostera marina blades in mesocosms filled with water from Tomales Bay (Long and Grosholz 2015). | ||
| Ecological Impact | Habitat Change | |
| Didemnum vexillum faciltated growth of invertebrates (polychaetes and tanaids) on eelgrass blades (Long and Grosholz 2015). | ||