1st Record: Newport Pond, Sbasticook Lake (1868 Warner 2005)

ME/Penobscot River Watershed (1868-1881, Warner 2005); ME/Penobscot River estuary (Page and Burr 1991: O'Malley et al. 2010)

Level	Vector
Probable	Fisheries Accidental (not Oyster)

Ecological Impact		Predation
Predation- Smallmouth Bass (Micropterus dolomieu) is one of the major piscivorous species in nontidal tributaries and in upper reaches of major East Coast estuaries In New England rivers, it is considered a major predator of Atlantic Salmon juveniles (Salmo salar) (US Fish and Wildlife Service 1999).

Economic Impact		Fisheries
Smallmouth Bass (Micropterus dolomieu) is a highly prized sport fish in Gulf of Maine rivers, including the Merrimack, Kennebec, Penobscot, and others (Everhart 1966; Hartel et al. 1996). Its negative fisheries impacts on Atlantic drainage fish communities and fisheries have not been well studied. Smallmouth Bass is considered to be a major predator on Atlantic Salmon (Salmo slar (US Fish and Wildlife Service 1999).

Ecological Impact		Competition
In an experimental stream, juvenile Smallmouth Bass and Atlantic Salmon showed little habitat overlap, with Salmon preferring riffles, and Bass preferring pools (Wathen et al. 2012). However, with a wider range of age-classes and habits, competition and predation interactions could be more apparent.

Species Regional Summary Micropterus dolomieu Penobscot Bay ( N050 )