Species Regional Summary
Palaemon modestus
Puget Sound to Northern California ( NEP-IV )

Invasion

Invasion Description

1st Record: Goble/OR/Columbia River (1995, Emmett et al. 2002), 1st Record: OR/Umpqua River drainage (1997, USGS Nonindigenous Aquatic Species Program 2006).

Geographic Extent

Goble/OR/Columbia River (1995, Emmett et al. 2002); Sauvie Island, Portland/OR/Big McNary Lake, Columbia River (1995, Emmett et al. 2002); Miller Sands/WA/Columbia River (1996, Emmett et al. 2002); Whitman County/WA/Snake River near Lower Granite Lake Dam (Draheim et al. 2007), OR/Umpqua River drainage (1997, USGS Nonindigenous Aquatic Species Program 2006).