Landlocked Salmon Atlantic Salmon are know only in the State of Maine. Some of the other names are Sebago Salmon or Quananiche and the scientific name is Salmo Salar. The average size is 16-18 inches and 1-2 pounds, but 3-5 pound fish are not uncommon. Adults are generally silvery wiyh a slightly forked tail and small x-shaped marking on the back and iper sides. Juvenile salmon have a dark red spot between each pair of parr marks. Mature males develop a kype or hooked jaw, during the spawning season.