Arctic Grayling and Similar Species
Thymallus arcticus
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Open the appSeveral fish can be confused with Arctic Grayling. Here are the key differences.
Species often confused with {name}
Rainbow Trout
Oncorhynchus mykiss
Key differences: Rainbow trout have a smaller dorsal fin, a more pronounced red or pink lateral stripe (especially during spawning), and typically more numerous and smaller spots over the entire body and fins. Their mouth is generally larger.
Brook Trout
Salvelinus fontinalis
Key differences: Brook trout have distinct red spots with blue halos (areolae) on their sides, vermiculations (worm-like markings) on their back and dorsal fin, and white leading edges on their pectoral, pelvic, and anal fins. Their dorsal fin is much smaller than that of a grayling.
Lake Trout
Salvelinus namaycush
Key differences: Lake trout are generally much larger, have a deeply forked tail, and typically have light spots on a darker body. Their dorsal fin is proportionally much smaller than a grayling's.
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