Invasion

Invasion Description

Genetic analysis suggests an origin of Jassa marmorata from the Northwest Atlanitc, includng specimens from Nova Scotia (Berrman et al. 2020)

Geographic Extent

Gulf of Maine (Holmes 1905; Conlan 1990); Spencers Island/Nova Scotia/Bay of Fundy (Conlan 1990); Cape St. Mary/Nova Scotia/Gulf of Maine (Conlan 1990); Cousins Island/ME/Casco Bay(Conlan 1990); ME/Damariscotta River (Conlan 1990); Cape Elizabeth/MA/Casco Bay (Conlan 1990); Hampton Beach/NH/Gulf of Maine (Conlan 1990); Seabrook BeachNH/Gulf of Maine (Conlan 1990); MA/Ipswich Bay (Conlan 1990); Nahant/MA/Boston Harbor (1893, USNM 30165, U.S. National Museum of Natural History 2015; Conlan 1990); Cohasset/MA/Cape Cod Bay (Conlan 1990); East Sandwich Beach/MA/Cape Cod Bay (Conlan 1990); Niva Scita/Atlntic Ocean (Beerman et al. 2020).