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Initial data from August and September 2009, showing fish depths during ebb and flood tide in Cobscook BayThough tidal energy could be a valuable source of affordable, renewable energy for coastal regions, some of the best tidal currents are near sensitive areas for fish spawning and feeding.

  • Studies are underway at a potential tidal turbine site in Eastport, Maine to better understand the impact a tidal energy project could have on fish.
  • Year-round hydroacoustic surveys show the amount of fish at the sites, as well as when and at what depths they appear.
  • Laboratory studies and a test turbine suspended below a barge show how fish act around a turbine.


Echo sounders provide view of the entire water column, showing individual fish and schools passing below

Environment Research Summary 2013

Maine Maritime Academy
Maine Tidal Power Initiative
208 Boardman Hall
Orono, Maine 04469-5711
Phone: (207) 581-2129 | Fax: (207) 581-2379
The University of Maine
Orono, Maine 04469