Species Regional Summary
Botryllus schlosseri
Pt. Conception to Southern Baja California ( NEP-VI )

Invasion History Vectors Impacts References

Invasion

Invasion Description

1st Record: San Diego/CA/San Diego Bay (1960's, Lambert and Lambert 1998)

Geographic Extent

Baja California/Mexico/Bahia San Quintin (2005, Rodriguez et al. 2008), Ensenada, Baja California/Mexico/Pacific Ocean (2000, Lambert and Lambert 2003); Shelter Island, Harbor Island, Fiddlers Cove, J St., San Ensenada/Mexico/Pacfic Ocean (2000, Lambert and Lambert 2003); San Diego/CA/San Diego Bay (1960's, Lambert and Lambert 1998;Nichols et al. 2023) Shelter Island, San Diego/CA/San Diego Bay (1994; 1995, 1997, 2000, Lambert and Lambert 2003); Harbor Island, San Diego/CA/San Diego Bay (1995,1996, 1997, Lambert and Lambert 2003); Fiddlers Cove, San Diego/CA/San Diego Bay (1995, 1996, 1997, 1998, 2000, Lambert and Lambert 2003); 24th St, San Diego/CA/San Diego Bay (1994, 1998, 2000, Lambert and Lambert 2003); J St, San Diego/CA/San Diego Bay (1994, 1997, 1998, Lambert and Lambert 2003); Sunroad Marina, San Diego/CA/San Diego Bay (2003, de Rivera et al. 2005); San Diego/CA/San Diego Bay (2001, Fairey et al. 2002; Obaza and Williams 2018); San Diego/CA/Quivera Basin, Mission Bay (1994, 1995, 1996, 1998, 2000, Lambert and Lambert 2003); Dana Landing, San Diego/CA/Mission Bay (1995, 1996, 1997, 1998, Lambert and Lambert 2003); South Shores Boat Ramp, San Diego/CA/Mission Bay (1997, 1998, Lambert and Lambert 2003); Bahia Point, San Diego/CA/Mission Bay (1994, 1998, Lambert and Lambert 2003); Mission Bay Yacht Club, San Diego/CA/Mission Bay (1997, 1998, Lambert and Lambert 2003; Tracy and Reyns 2014; 2011, California Department of Fish and Wildlife 2014); Seaforth Marina, San Diego/CA/Mission Bay (2003, de Rivera et al. 2005a); San Diego/CA/Mission Bay (2001, Fairey et al. 2002; 2013, Obaza and Williams 2018); Oceanside/CA/Oceanside Harbor (1995, 1996; 2000, Lambert and Lambert 1998; Cohen et al. 2002; Lambert and Lambert 2003; 2001, Fairey et al. 2002); Dana Point/CA/Dana Point Harbor (1994, 1995, 1996, 1997, Lambert and Lambert 1998; Lambert and Lambert 2003; 2001, Fairey et al. 2002; 2011, California Department of Fish and Wildlife 2014; Obaza and Williams 2018); Fun Zone, Newport/CA/Newport Harbor (1997, 1998, Lambert and Lambert 2003; CA/Newport Bay (2017, Ruiz and Geller 20219 of 10 sites sampled; 2018); Costa Mesa/CA/Upper Newport Bay (1997, 1998, Lambert and Lambert 2000); Long Beach Marina/CA/Alamitos Bay (1994, 1995, 1996, 1997,1998, 2000, Lambert and Lambert 2003; 013, Obaza and Williams 2018); Huntingon Beach/CA/SanPedro Bay (2018, Beshai et al. 2022); Impound Marina, Long Beach/CA/Long Beach Harbor 1994, 1995, 1996, 1997,1998, 2000, ,Lambert and Lambert 2003); Watchorn Marina, Long Beach/CA/Long Beach Harbor (1994, 1995, 1996, 1997,1998, 2000, Lambert and Lambert 2003); CA/Long Beach Harbor (2017, Ruiz and Geller 2021, 9 of 10 sites); Los Angeles/Port of Los Angeles (2013, Obaza and Williams 2018); Redondo Beach/CA/King Harbor (1994, 1995, 1996, 1997,1998, 2000, Lambert and Lambert 1998; Lambert and Lambert 2003); CA/Marina del Rey (1994, 1995, 1996, 1997,1998, 2000 Lambert and Lambert 1998; Lambert and Lambert 2003; 2001, Fairey et al. 2002; 2011, California Department of Fish and Wildlife 2014; 013, Obaza and Williams 2018); Jack's Landing/CA/Port Hueneme (1995, 1996, 1997, 1998, 2000, Lambert and Lambert 1998; Lambert and Lambert 2003); Anacapa Island Marina CA/Port Hueneme (1996, 1998, 2000, Lambert and Lambert 1998; Lambert and Lambert 2003); Oxnard/CA/Port Hueneme (2001, Fairey et al. 2002; 2011, California Department of Fish and Wildlife 2014); Vintage Marina, Oxnard/CA/Channel Islands Harbor (2003, deRivera et al. 2005); Oxnard/CA/Channel Islands Harbor, 2001, Fairey et al. 2002; 2011, California Department of Fish and Wildlife 2014; 013, Obaza and Williams 2018); Island Packers, Ventura/CA/Ventura Harbor (1995, 1996, 1997, 1998) Lambert and Lambert 1998; Lambert and Lambert 2003); Pierpoint Yacht Club, Ventura/CA/Ventura Harbor (1995, 1996, 1997, 1998); Lambert and Lambert 1998; Lambert and Lambert 2003; 013, Obaza and Williams 2018); Ventura/CA/Ventura West Harbor (de Rivera et al. 2005z); Santa Barbara/CA/Santa Barbara Harbor (1996, 1997, 1998, Lambert and Lambert 1998; Lambert and Lambert 2003; 2001, Fairey et al. 2002; 2011, California Department of Fish and Wildlife 2014; 2013, Obaza and Williams 2018; Nichols et al. 2023); Santa Catalina Island/CA/Avalon Harbor (2001, Cohen 2005; 2011, California Department of Fish and Wildlife 2014)

Vectors

Level Vector
Probable Hull Fouling

Regional Impacts

Ecological ImpactCompetition
Large monospecific colonies of Botyrllus schlosseri were noted at King Harbor and Port Hueneme, indicating strong competition (Lambert and Lambert 2003).
 

References

Full Reference List for Botryllus schlosseri

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