Invasion

Invasion Description

1st record: Loring/AK/Behm Canal (Inside Passage) (1903, USNM 5633. U.S. National Museum of Natural History 2003; Lambert 2003); Stuart Island/British Columbia/Queen Charlotte Strait (1937, Lambert 2003).

The Alaska and British Columbia records are museum specimens which have been identified as C. savignyi. These records may represent a cryptogenic northern population. However, specimens collected from marinas in Puget Sound appear to be recent invaders (Lambert 2003).

Geographic Extent

Loring/AK/Belum Canal (Inside Passage) (1903, USNM 5633. U.S. National Museum of Natural History 2003; Lambert 2003); Stuart Island/British Columbia/Queen Charlotte Strait (1937, Lambert 2003); Calvert Island//British Columbia/Hakai Passage (2017, Lambert 2019, 51.6º N, 128.1º E,); Des Moines Marina/WA/Puget Sound (1998, Lambert 2003); Edmonds /WA/Puget Sound (1999; Cordell et al. 2012); Tacoma Yacht Club/WA/Puget Sound (1998, Lambert 2003); Brownsville Yacht Club/WA/Puget Sound (1998, Lambert 2003); Tacoma Yacht Club/WA/Puget Sound (2001, Lambert 2003); Elliott Bay Marina, Seattle/WA/Elliott Bay (2004, Center for Aquatic Resource Studies 2008; Cordell et al. 2012); Tahuya and Union, Sund Rock's North Wall, Jorsted Creek Pinnacle, West Wall of Pulali Point, East Wall, Pulali Point/WA/Hood Canal (2005, Pacific NW Scuba, http://www.pnwscuba.com/critterwatchers/ciona.htm; Center for Aquatic Resource Studies 2008); Port Orchard Marina, in Port Orchard/WA/Sinclair Inlet [Puget Sound] (2006, USGS Nonindigenous Aquatic Species Program 2008); Winslow Marina in Winslow, Bainbridge Island/WA/Eagle Harbor [Puget Sound] (2006, USGS Nonindigenous Aquatic Species Program 2008); San Juan Island/WA/Puget Sound (2008, USGS Nonindigenous Aquatic Species Program 2008); Lagoon Point/WA/Puget Sound (2010, Cordell et al. 2012)