Invasion
Invasion Description
1st Record: Anacapa Isle Marina, Oxnard/CA/Port Hueneme (1994, Lambert and Lambert 2003)
Geographic Extent
Vintage Marina, Oxnard/CA/Channel Islands Harbor (2003, de Rivera et al. 2005); Jack's Landing, Oxnard/CA/Port Hueneme (1995, 1996, 2000, Lambert and Lambert 2003); CA/Channel Islands Harbor (2001, Fairey et al. 2002; 2011, California Department of Fish and Wildlife 2014); Anacapa Isle Marina, Oxnard/CA/Port Hueneme (1994, 1995, 1996, 1997, 1998, 2000, Lambert and Lambert 2003a); CA/Port Hueneme (2001, Fairey et al. 2002; 2011, California Department of Fish and Wildlife 2014)
Vectors
| Level | Vector |
|---|---|
| Probable | Hull Fouling |
Regional Impacts
| Ecological Impact | Competition | |
| It and other introduced ascidians have replaced the native species Pyura haustor and Ascidia ceratodes in southern California harbors (Lambert and Lambert 1998). | ||