World Record ~ 5 Lbs. 15 oz. Caught at Katseyedie River, N.W.T. on Aug. 16, 1967 by angler Jeanne P. Branson
Scientific name ~ Thymallus Arcticus
Other names ~ American Grayling, Arctic trout, bluefish, back's Grayling, Grayling, Greyling, Sailfin Arctic Grayling, Artic Grayling
Identification ~  The Arctic Grayling has graceful lines, a large sail like dorsal fin, and can have dramatic coloration. The Arctic Grayling has quite large scales. It is silvery, or gray in color with highlights of lavender and gold, although mature fish can be darker, particularly the males around spawning time. The Arctic Grayling may also have spots in the shape of an X or V. It has a small narrow mouth with small teeth in both jaws. The tail of the Arctic Grayling is forked.
Size ~ Arctic Grayling can reach a length of 30 inches and a weight of 6 pounds. Most angler caught Grayling are 3 pounds or less.
Habitat ~ For most sportfishermen, the Arctic Grayling is a rare freshwater game fish symbolic of the clear, cold streams of the northern wilderness. Grayling occur throughout the arctic as far west as the Kara and Ob rivers in Russia and east to the western shores of Hudson Bay in Canada. Once as common as far south as Michigan and Montana, the Arctic grayling has almost disappeared from the northern United States because of over fishing, competition from introduced species, and habitat loss.
Feeding Habits ~ Terrestrial insects form the larger part of their diet, but they also feed on bottom nymphs, snails, small fish and eggs.