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FishWise
Arctic Grayling

Trout & Salmon

Arctic Grayling

Thymallus arcticus

FreshwaterSalmonidaeLeast Concern

About

Arctic Grayling are slender fish characterized by their large, sail-like dorsal fin, often with colorful markings. They are active fish, typically found in clear, cold rivers and lakes, and are known for their preference for insect larvae and surface insects.

Average size
12-18 inches, 1-3 lbs
Colors
Silver body with iridescent hues of blue, purple, and pink; dorsal fin with red, orange, or purple spots or stripes.
Diet
Primarily aquatic insects (larvae and adults), terrestrial insects, small crustaceans, and occasionally small fish or fish eggs.
Region
Alaska, Montana (reintroduced), and historically in Michigan (extirpated). Also found in Canada and Russia.