Sonar image of American shad run on the Androscoggin River at Brunswick. Precision sonar (ARIS) allows a count of shad migrating upstream toward the fish ladder at the Brookfield hydroelectric dam. Two sturgeon are also present in the upper right of the frame. The uppermost section of the frame is the rocky bottom of the river.
Atlantic sturgeon. Androscoggin River at Brunswick-Topsham.
Atlantic sturgeon. Androscoggin at Brunswick-Topsham. Two threatened sturgeon species are making strong comebacks in the Kennebec and Androscoggin Rivers.
Atlantic sturgeon. Androscoggin River at Brunswick-Topsham.
Atlantic sturgeon. Androscoggin at Brunswick-Topsham.
Atlantic sturgeon. Androscoggin River at Brunswick-Topsham.
Nequasset Fish Ladder. Nequasset, Maine.
Nequasset Fish Harvest Building. Nequasset, Maine.
214 year old dam on Sheepscot River at Coopers Mill, Maine.
Sheepscot at Coopers Mills after dam removal.
Nate Gray of the Dept. of Marine Resources at the Essex Hydroelectric fish lift at Benton Falls on the Sebasticook. This major restoration effort to provide fish passage over dams has brought back over 5 million spawning alewives and blueback herring. These fish in turn are a part of the forage base for Atlantic cod and other groundfish in the Gulf of Maine.
Alewife harvest at Benton Falls. Sebasticook River.
Fish lift at Benton Falls on Sebasticook. Alewife harvest below dam.
Defunct dam on Sabbatus River. Sabbatus, Maine.
American Tissue Dam on Cobboseecontee River. Gardiner, Maine.
Healthy stand of submerged aquatic vegetation. Hinckley Cove, 2nd Roach Pond. Northeast of Greenville, Maine.
Submerged aquatic vegetation. Nequasset Brook. Woolwich, Maine.
Water lilies. Well-vegetated Nequasset Brook. Woolwich, Maine.
Underwater view of Nequasset Brook aquatic vegetation. Woolwich, Maine.