Arctic char on the average have more gill rakers on the first gill arch (25-30 as opposed to 21-22 in the Dolly Varden) and more pyloric caeca (40-45 as opposed to about 30 in Dolly Varden), but fish with intermediate counts (i.e., 23 or 24 gill rakers and 35 pyloric caeca) are not at all uncommon in either species. When returning from the sea both species are silvery and lack spots. The spots on the Dolly Varden are usually smaller than the pupil of the eye, while on the Arctic char they are larger than the pupil. Unique Dolly Varden - Kaniq Creek Alaska - Fishing Planet Guide In this guide I show you how and where to catch the Unique Dolly Varden in Kaniq Cre. The two are outwardly almost identical in every respect and to complicate matters, significant variations occurs in both species. Much of the published information on the distribution of these species is incorrect and often presupposed that only one species occurred in areas or rivers where it is now believed both species may occur. A greater problem arises in trying to separate Dolly Varden from Arctic char.
The Dolly Varden is usually a coastal species whereas the larger bull trout is found inland in large, cold rivers and lakes draining high, mountainous areas.
Due to past misidentification of species in various locales and lack of scientific knowledge, much of the available literature on these species is either misleading or incorrect, and there is still some disagreement among scientists on their distribution.The Dolly Varden and bull trout can generally be distinguished by their size and habitat.
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