Invasion
Invasion Description
1st Record: CA/Humboldt Bay (1992, Boyd et al. 2002)
Geographic Extent
Woodley Island Marina/CA/Humboldt Bay (2001, Fairey et al. 2002; Nelson 2009); CA/Humboldt Bay (1992, Boyd et al. 2002; 2000, Ruiz et al. unpublished data, Wonham et al. 2005; 2011, California Department of Fish and Wildlife 2014); Eureka Marina/CA/Humboldt Bay (2009, Wilson 2011)
Vectors
| Level | Vector |
|---|---|
| Alternate | Hull Fouling |
| Alternate | None |
Regional Impacts
| Ecological Impact | Competition | |
| In fouling plate experiments in Humboldt Bay (Nelson 2009), found that colonial tunicates (Botryllus schlosseri and Botrylloides violaceus), growing in sheets, were able to quicly occupy space on fouling plates, but did not decrease recruitment or species richness. | ||