Invasion

Invasion Description

1st Record: ME/lower Penobscot River (1994, Gallagher et al. 2010)

, 1st Record: ME/Belgrade Lakes, Kennebec River basin (1940, Kennebec River Council 1998),

NH-ME/Pisccataqua River (Short et al. 1992 https://coast.noaa.gov/data/docs/nerrs/Reserves_GRB_SiteProfile.pdf)

Geographic Extent

ME/Penobscot River estuary (Page and Burr 1991: O'Malley et al. 2010)

, ME/Kennebec River -Merrymeeting B y(around the turn of the century, Kennebec River Council 1998),

NH-ME/Pisccataqua River (Short et al. 1992 https://coast.noaa.gov/data/docs/nerrs/Reserves_GRB_SiteProfile.pdf)