Invasion

Invasion Description

1st Record: Cape Henlopen/DE/Delaware Bay-Atlantic (1992, McDermott 1998)

Geographic Extent

Cape Henlopen/DE/Delaware Bay-Atlantic (1992, USGS Nonindigenous Aquatic Species Program 2008); Port Mahon/DE/Delaware Bay (2003, Fofonoff, personal observation); Lewes/DE/University of Delaware Harbor (2001-2012, Schab et al. 2013, decline in abundance, resurgence of naitve Panopeus herbstii)