Invasion

Invasion Description

1st record: WA/Puget Sound (Galtsoff 1929, cited by Carlton 1979; Hanna 1996); not mentioned for Ruesink, in Boersma 2006). She gives the range as Wiilapa Bay (thriving) and Boudary Bay (dwindling).

Geographic Extent

WA/Puget Sound (Galtsoff 1929, cited by Carlton 1979; Hanna 1996); near Olympia/WA/Oyster Bay (1948, Hanna 1966)