Invasion

Invasion Description

1st record: CA/Los Angeles Harbor (1951, Barnard 1953, cited by Carlton 1979, on the hydroid Ectopleura crocea)

Geographic Extent

CA/Los Angeles Harbor (1951, Barnard 1953, cited by Carlton 1979; 2011, California Department of Fish and Wildlife 2014); CA/Long Beach Harbor (2017, 3 of 10 hard substrate survey stations, Ruiz and Geller 2021)