Species Regional Summary
Botrylloides giganteus
Pt. Conception to Southern Baja California ( NEP-VI )

Invasion History Vectors Impacts References

Invasion

Invasion Description

1st Record: Naval Station, San Diego/CA/South San Diego Bay (1997, Lambert and Lambert 2003)

Geographic Extent

Santa Barbara Harbor Sailing Center. Santa Barbara/CA/anta Barbara Harbor (2000, Nochols et al. 2023); Ventura/CA/Ventura Harbor (2013, Obaza amd Williams 2018); Oxnard/CA/Channel Islands Harbor (2013, Obaza amd Williams 2018); Venice/CA/Marina del Rey (2013, Obaza amd Williams 2018); Los Santa Barbara Harbor Sailing Center. Santa Barbara/CA/anta Barbara Harbor (2000, Nochols et al. 2023)/CA/Port of Los Angeles (2013, Obaza amd Williams 2018); Alamitos Bay Marina, Long Beach/CA/Alamitos Bay (2003, Ruiz et al., unpublished data); Peters Landing Marina, Huntington Harbor/CA/Huntington Harbor (2003, Ruiz et al., unpublished data)Vista Marina, San Diego/CA/San Diego Bay (2003, de Rivera et al. 2005; 2013, Obaza amd Williams 2018); Quivera Basin, San Diego/CA/Mission Bay (1998, 2000 Lambert and Lambert 2003); 2011, California Department of Fish and Wildlife 2014; Dana Point Marina, San Diego/CA/Mission Bay (2003, de Rivera et al. 2005); Seaforth Marina, San Diego/CA/Mission Bay (2003, de Rivera et al. 2005); Naval Station, San Diego/CA/South San Diego Bay (1997, Lambert and Lambert 2003; 2013, Obaza amd Williams 2018); Shelter Island, San Diego/CA/San Diego Bay (1998, 1999, Lambert and Lambert 2003); 24th St, San Diego/CA/San Diego Bay (1997, 1998, Lambert and Lambert 2003; 2011, 2011, California Department of Fish and Wildlife 2014); Baja California/Mexico/Bahia San Quintin (2005, Rodriguez and Ibarra-Obando 2008);

Vectors

Level Vector
Probable Hull Fouling

Regional Impacts

Ecological ImpactCompetition
The colonial tunicate Botrylloides giganteum is a recent invader of two locations in southern California, in Mission Bay and San Diego Bay. From 1994-2000 strong competition was noted at some locations where the tunicate grew over extensive areas (100% cover) (Lambert and Lambert 2003).
 

References

Full Reference List for Botrylloides giganteus

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