Invasion

Invasion Description

1st record: OR/Coos Bay (1950, Hedgpeth 1952, cited by Carlton 1979);

Geographic Extent

OR/Tillamook Bay (1976, in Carlton 1979); OR/Netarts Bay (1976, Carlton 1979, but not found in 2001 by Peterson 2006); OR/Yaquina Bay (Pisciotta 1978, cited by Carlton 1979); OR/Umpqua River, upper estuary (1978, Carlton 1979; but not found in 2001, by Petersen 2006); OR/Coos Bay (1950, Hedgpeth 1952, cited by Carlton 1979); Graveyard Point/OR/Coos Bay-Coos River (1970, Carlton 1989); Coos Bay/OR/Isthmus Slough (1971, Carlton 1989); OR/Haynes Inlet, Coos Bay (1971, 1983, Carlton 1989); Barview/OR/Joe Ney Slough (1989, Carlton 1999)