Invasion

Invasion Description

1st Record?: CA/San Francisco Bay (Behrens 2004).

Although P. orientalis was first recognized as distinct from P. auriformis in Bodega Harbor, it was most likely first introduced to San Francisco Bay in ballast water.

Geographic Extent

CA/San Francisco Bay (Behrens 2004); San Mateo/CA/South San Francisco Bay (2007, Krug et al. 2012); China Camp/CA/San Pablo Bay (2007, Krug et al. 2012); Foster City/CA/South San Franciscio Bay (7/12/1996, Valdes et al. 2016)