Invasion

Invasion Description

1st Established Record: CA/Elkhorn Slough (1977, Carlton 1979) 1st record: CA/Monterey Boat Harbor, Monterey Bay (1958, not established, Carlton 1979)

Geographic Extent

CA/Monterey Boat Harbor, Monterey Bay (1958, not established); CA/Elkhorn Slough (1977, Carlton 1979); Kirby Park/CA/Elkhorn Slough (1998, Wasson et al. 2001)