Invasion

Invasion Description

1st Record: Long Beach/CA/Los Angeles-Long Beach Harbors (in 1984, Lambert and Lambert 1998). This species was abundant and widespread in sampling from 1995 to 2000, but in 201, was scarce. The native A. ceratodes, which had become rare, was again common (Gretchen Lambert 2012, personal communication).

Geographic Extent

Baja California/Mexico/Bahia San Quintin (2005, Rodriguez and Ibarra-Obando 2008); Harbor Island, San Diego/CA/San Diego Bay (1995, 1996, 1997, 1998, Lambert and Lambert 1998; Lambert and Lambert 2003); Shelter Island, San Diego/CA/San Diego Bay (1996, 1997, 2000), Lambert and Lambert 2003); Fiddler's Cove, San Diego/CA/San Diego Bay (1995, 1996, 1998, 2000), Lambert and Lambert 2003); J St., San Diego/CA/San Diego Bay (1997, Lambert and Lambert 2003; Tracy and Reyns 2014); Sunroad Marina/San Diego/San Diego Bay (2003, de Rivera et al. 2005); Chula Vista Marina/San Diego/San Diego Bay (2003, de Rivera et al. 2005); San Diego/CA/San Diego Bay (2001, Fairey et al. 2002); Quivera Basin, San Diego/CA/ Mission Bay (1995, 1997, 1998, 2000, Lambert and Lambert 1998; Lambert and Lambert 2003); Dana Point Marina, San Diego/CA/Mission Bay ( 2003, de Rivera et al. 2005); Bahia Point, San Diego/CA/ Mission Bay (1996, Lambert and Lambert 1998; Lambert and Lambert 2003); Mission Bay Yacht Club, San Diego/CA/ Mission Bay (1997, 1998, Lambert and Lambert 1998; Lambert and Lambert 2003); Santa Clara Boat Launch, San Diego/CA/ Mission Bay (1997, 1998, Lambert and Lambert 1998; Lambert and Lambert 2003); Seaforth Marina, San Diego/CA/Mission Bay ( 2003, de Rivera et al. 2005); San Diego/CA/Mission Bay (2001, Fairey et al. 2002); San Diego County/CA/Oceanside Harbor (1998, Lambert and Lambert 2003; 2001, Fairey et al. 2002; 2011, California Department of Fish and Wildlife 2014); Dana Point/CA/Dana Point Harbor (1996, Lambert and Lambert 1998; Lambert and Lambert 2003; 2001, Fairey et al. 2002; 2011, California Department of Fish and Wildlife 2014)); Newport Beach/CA/Newport Harbor (1997, Lambert and Lambert 1998; Lambert and Lambert 2003; 2011, California Department of Fish and Wildlife 2014, 2018,  Beshai et al. 2022I; CA/Newport Bay (2017, 4 of sites sampled).); Costa Mesa/CA/Upper Newport Bay (1996, 1997, Lambert and Lambert 2000); Newport Beach/CA/Newport Bay (2001, Fairey et al. 2002); Huntington Beach/CA/Huntington Harbor (2001, Fairey et al. 2002; 2018, Beshai et al. 2022; Long Beach Marina/CA/Spinnaker Cove, Alamitos Bay (1997, Lambert and Lambert 1998; Lambert and Lambert 2003); Long Beach/CA/Long Beach Harbor (2001, Fairey et al. 2002); Long Beach/CA/Los Angeles-Long Beach Harbors (1984) (Lambert and Lambert 1998); Impound Marina, Long Beach/CA/Los Angeles-Long Beach Harbors (1995, 1996, 1997, 1998, Lambert and Lambert 1998; Lambert and Lambert 2003); Watchorn Marina, Long Beach/CA/Los Angeles-Long Beach Harbors (1995, 1996, 1997, 1998, 2000, Lambert and Lambert 1998; Lambert and Lambert 2003); Los Angeles/CA/Los Angeles Harbor (2002, Fairey et al. 2002); Los Angeles/CA/Port of Los Angeles outer bay (2013, Obazo and Williams 2018); ;Redondo Beach/CA/King Harbor (1998, Lambert and Lambert 1998; Lambert and Lambert 2003); CA/Marina del Rey (1995, 1996, 1997, 1998, 2000, Lambert and Lambert 1998; Lambert and Lambert 2003; 2001, Fairey et al. 2002); Jack's Landing/CA/Port Hueneme (1996, 1998, Lambert and Lambert 1998; Lambert and Lambert 2003); Anacapa Island Marina CA/Port Hueneme (1995, 1997, 1998, 2000, Lambert and Lambert 1998; Lambert and Lambert 2003); Vintage Marina, Oxnard/CA/Channel Islands Harbor (2003, de Rivera et al. 2005); Oxnard/CA/Port Hueneme (2001, Fairey et al. 2002); Island Packers, Ventura/CA/Ventura Harbor (1996, 1997, 1998) Lambert and Lambert 1998; Lambert and Lambert 2003); Pierpoint Yacht Club, Ventura/CA/Ventura Harbor (1996, 1997, 1998); Lambert and Lambert 1998; Lambert and Lambert 2003); Santa Barbara/CA/Santa Barbara Harbor (1996, 1998, Lambert and Lambert 1998; Lambert and Lambert 2003; 2001, Fairey et al. 2002; 2011, California Department of Fish and Wildlife 2014)