malma, and the southerly populations make another lineage and subspecies, the Asian Dolly Varden (or southern Dolly Varden) S. Northern populations on the Russian side of the Pacific down to Kamchatka are considered S. The status of the Beringian drainage populations remains unclear. These can be distinguished as separate mitochondrial lineages also. malma) of the Arctic drainages and the Southern Dolly Varden ( S. In North America, two subspecies of Dolly Varden are distinguished, the Northern Dolly Varden ( S. This was likely due to overlapping ranges and similar appearances among members of the two species.ĭolly Varden fingerling at Hokkaido Japan aquarium, probably Salvelinus malma miyabei confluentus, now commonly known as the bull trout. It appears that the first recorded use of the Dolly Varden name for fish referred to S. In 1978, inland forms of the Dolly Varden trout were reclassified as Salvelinus confluentus, retaining the common name bull trout. alpinus) along with the bull trout have ranges that overlap and are remarkably similar in appearance, thus complicating identification. confluentus) were considered the same species. įor most of the 19th and 20th centuries, the Dolly Varden trout ( S. The Dolly Varden trout is considered part of the S. The name malma was based on Russian мальма, the local colloquial name for the fish. The species was originally named by German naturalist and taxonomist Johann Julius Walbaum in 1792 based on type specimens from the Kamchatka Peninsula in Siberia. The scientific name of the Dolly Varden is Salvelinus malma. It is considered by taxonomists as part of the Salvelinus alpinus or Arctic char complex, as many populations of bull trout, Dolly Varden trout and Arctic char overlap. Although many populations are semi- anadromous, fluvial and lacustrine populations occur throughout its range. It belongs to the genus Salvelinus, or true chars, which includes 51 recognized species, the most prominent being the brook, lake and bull trout, as well as Arctic char. The Dolly Varden trout ( Salvelinus malma) is a species of salmonid fish native to cold-water tributaries of the Pacific Ocean in Asia and North America.
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