Invasion

Invasion Description

1st Record: Woods Hole/MA/Eel Pond (1894, not seen after eelgrass die-off in 1930, Mayer 1910, 'erratic since eelgrass die-off', Gosner 1978)

Geographic Extent

Woods Hole/MA/Eel Pond (1894, not seen after eelgrass die-off in 1930, Mayer 1910, 'erratic since eelgrass die-off', Gosner 1978, Edwards 1976); Naushon Island/MA/Hadley Harbor (Mayer 1910, Sumner et al. 1913); Vineyard Haven (Mayer 1910); Martha’s Vineyard/MASengekontacket Pond, (1960s, Govindarajan and Carman 2015); Oak Bluffs, Marthas Vineyard/MA/Farm Pond (2006, Friends of Farm Pond 2012); Menemsha, Marthas Vineyard/MA/Menemsha Pond (Vineyard Haven, Friends of Farm Pond 2012); Martha’s Vineyard/MA/Farm, Sengekontacket, Edgartiwn Great Ponds (2018, Carman et al. 2019); Mashpee/MA/Hamblin and Jehu Ponds (1990s, Govindarajan and Carman 2015, severe stings reported); South Cape Beach State Park, Mashpee/MA/Sedge Lot Pond (7/2010, Kehrl 2010); Vineyard Haven, Marthas Vineyard/MA/Vineyard Haven (Sumner et al. 1913); Muskeget Island/MA/Vineyard Sound (Sumner et al. 1913); Southold, Long Island/MY/Cedar Beach Creek (2011, Govindarajan and Carman 2015, severe stings not reported); Waterford/CT/Niantic River (Mayer 1910); Point Pleasant Canal/NJ/Manasquan River (6/6/2016, Gaynor et al. 2016, 1 specimen?); Monmouth Beach/NJ/Shrewsbury River (6/8/2016, Gaynor et al. 2016); near Point Pleasant Canal/NJ/Barnegat Bay (6/10/2016, Goldman 2016, 1 specimen?)