Invasion

Invasion Description

1st Record: Grays Harbor/WA/Chehalis River Estuary (1974, Banse 1979)

Geographic Extent

Grays Harbor/WA/Chehalis River Estuary (1974, Banse 1979, http://www.nws.usace.army.mil/publicmenu/DOCUMENTS/Chehalis_Created_Slough_2000_Monitoring_.pdf); WA/Beardslee Slough, Grays Harbor (1999, Wilson and Partidge 2007)