Marine fish
Though more than 500 species of marine fish have been recorded in the Canadian Atlantic, less than 300 species occur regularly. Important populations of Groundfish, such as cod, redfish, haddock, pollock, plaice and flounder, and pelagic fish, such as hake, herring, tuna, capelin and salmon, are found in these waters.
Marine mammals
Common marine mammals in this ecozone include Harbour and Grey Seals, Harbour Porpoises, and dolphins. Several species of whale migrate through the ecozone, including the Northern Bottlenose, Blue, Pilot, Beluga, Fin, Minke, and Humpback Whale.
Marine birds
Common marine birds in this ecozone include the Atlantic puffin, purple sandpiper, great black-back gull, and the yellow-legged gull.