Invasion

Invasion Description

1st Record: Clackamas County/OR/Willamette River below locks (tidal) (1998, Marsh and Wood 2002); Bonneville Dam/OR-WA/Columbia River (1998, Marsh and Wood 2002)

Geographic Extent

Clackamas County/OR/Willamette River below locks (tidal) (1998, Marsh and Wood 2002); Bonneville Dam/OR-WA/Columbia River (1998, Marsh and Wood 2002); Fairview, Incendiary Bridge/OR/Columbia Slough, [45.6106, -122.7553] (Samples: 51-WR-02, 52-WR-02, 01-WR-02, Dates: April 16, 2002, June 24, 2002 Temperature: NA, Salinity: 0ppt; Sytsma et al. 2005); Near I-5 Bridge/OR/Columbia Slough, [45.5854, -122.6692] (Samples: 02-WR-02, Dates: June 24, 2002, Temperature: 13C, Salinity: 0pp; Sytsma et al. 2005); OR/Columbia Slough, Mouth [45.6437, -122.7693] (Samples: 03-WR-02, Dates: June 24, 2002 Temperature: 13C, Salinity: 0ppt; Sytsma et al. 2005)