Invasion

Invasion Description

None

Geographic Extent

Nova Scotia-MA/Gulf of Maine and inflowing rivers (Bigelow and Schroeder 1953); New Brunswick/St John River (spawning population, Bigelow and Schroeder 1953); ME/Winter Harbor (migrating adults, Bigelow and Schroeder 1953); Mount Desert Island/MD/Narrows (migrating adults, Bigelow and Schroeder 1953); ME/Penobscot River (migrating adults, formerly a spawning population); ME/Kennebec River); ME/Kennebec River (spawning population, Bigelow and Schroeder 1953); NH/Piscataqua River-Great Bay (migrating adults, Bigelow and Schrieder 1953); MA/Merrimack River (Migrating adults, Bigelow and Chroeder 1953)