1st Record: DE/Indian River Inlet (1992, McDermott 1998)
DE/Indian River Inlet (1992, McDermott 1998); Holts Landing/DE/Indian River Inlet (2003, Miller and Brown 2005); Burton Island Marina, Rehoboth/DE/Rehoboth Bay (2003, Miller and Brown 2005). Hemigrapsus sanguineus declined from 2001 to 2012 at Indian River Inlet atnd Ocean City Inlet, with a resurgence of native Panopeus herbsti (Schab et al. 2013).
ReferencesMcDermott, John J. (1998) The western Pacific Brachyuran Hemigrapsus sanguineus (Grapsidae) in its new habitat along the Atlantic coast of the United States: geographic distribution and ecology., ICES Journal of Marine Science 55: 289-298
Miller, Douglas; Brown, Jill. (2005) Aquatic non-native and invasive species in Maryland coastal bays., None , Annapolis. Pp. 8/100-8/105
Schab, Corey M.; Park, Susan; Waidner, Lisa A.; Epifanio, Charles E. (2013) Return of the native: historical comparison of invasive and indigenous crab populations near the mouth of delaware bay, Journal of Shellfish Research 32: 751-758