Invasion
Invasion Description
1st Record: Santa Barbara/CA/Santa Barbara/ (1970, Fay and Johnson 1972, cited by Carlton 1979)
Geographic Extent
Santa Barbara/CA/Santa Barbara/ (1970, Fay and Johnson 1972, cited by Carlton 1979; 1994, 1995, 1996, 1997, 1998, 2000, Lambert and Lambert 2003; 2011, California Department of Fish and Wildlife 2014)
Vectors
| Level | Vector |
|---|---|
| Alternate | None |
| Alternate | 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). | ||