Invasion

Invasion Description

1st Record: CA/Anaheim Bay (Counts 1986; USGS Nonindigenous Aquatic Species Program 2007, Occurrences in marine bays are likely to be sporadic and dependent on heavy rainfall), 1st Record: Camp Pendleton/CA/Santa Margarita River (1983, USGS Nonindigenous Aquatic Species Program 2007, 'Santa Margarita River, lower river just above tidal area on Camp Pendleton Marine Corps Base'), 1st Record: Cabrillo Beach, Point Loma, San Diego/CA/San Diego Bay (Counts 1986, USGS Nonindigenous Aquatic Species Program 2008, Occurrences in marine bays are likely to be sporadic and dependent on heavy rainfall)

Geographic Extent

CA/Anaheim Bay (Counts 1986; Counts 1991, USGS Nonindigenous Aquatic Species Program 2007; Occurrences in marine bays are likely to be sporadic and dependent on heavy rainfall), Camp Pendleton/CA/Santa Margarita River (1983, Counts 1991; USGS Nonindigenous Aquatic Species Program 2007, 'Santa Margarita River, lower river just above tidal area on Camp Pendleton Marine Corps Base'), Cabrillo Beach, Point Loma, San Diego/CA/San Diego Bay (Counts 1986, Counts 1991, USGS Nonindigenous Aquatic Species Program 2008, occurrences in marine bays are likely to be sporadic and dependent on heavy rainfall); San Diego National Wildlife Refuge/CA/Sweetwater River (2005, USGS Nonindigenous Aquatic Species Program 2008)