Table 1. Migratory fish in the Penobscot basin, including original range of migration, current range, and projected range after Project completion.

Species Original Range Current Range Expected Future Range
Alewife
(Alosa pseudoharengus)		 In ponds throughout most of basin No ponds above Milford Improved access to 34 ponds above Veazie and more through independent restoration projects (34% of historic habitat)
American Eel
(Anguilla rostrata)		 Throughout basin (11,569km) Limited population throughout basin Improved access to 5148 km for a total of 6893 km† (60% of historic)
American Shad
(Alosa sapidissima)		 All major tributaries north to Wassataquiok (786 km) To Milford only (62 km) Improved access to 529km for a total of 690 km† (88% of historic range)
Atlantic Salmon
(Salmo salar)		 Throughout basin (11,569 km) Limited populations throughout basin (stocked and trucked upstream of Veazie) Improved access to 5148 km for a total of 6893km† (60% of historic range)
Atlantic Sturgeon
(Acipenser oxyrinchus)		 To Milford/Fall line (62 km) To Veazie only (50 km) To Milford/Fall line (62 km)
Atlantic Tomcod
(Microgadus tomcod)		 Great Works To Veazie only (50 km) Great Works (60 km)
Blueback Herring
(Alosa aestivalis)		 All major tributaries north to Wassataquiok To Milford only (62km) Improved access to 529km for a total of 690 km (88% of historic range)
Rainbow Smelt
(Osmerus mordax)		 To Milford/Fall line (62 km) To Veazie only (50 km) To Milford/Fall line, occasionally above (62 km)
Sea Lamprey
(Petromyzon marinus)		 Throughout basin (11,569 km) Limited population throughout basin Improved access to 5148km for a total of 6893km† (60% of historic range
Sea-Run Brook Trout
(Salvelinus fontinalis)		 Lower tributaries up to Howland (226 km) Tributaries below Veazie only (137 km) Tributaries below Howland (226 km)
Shortnose Sturgeon
(Acipenser brevirostrum)		 To Milford/Fall line (62 km) To Veazie only (50 km) To Milford/Fall line (62 km)
Striped Bass
(Morone saxatilis)		 To Milford/Fall line, occasionally above (62 km) To Veazie only (50 km) To Milford/Fall line, occasionally above (62 km)

†assumes successful upstream passage through up to three fishways or successful downstream passage over up to three dams (additional habitat is accessible above four to five dams, but not included here). T. Trinko, NOAA Fisheries, unpublished data.