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2. Origin of a Relict Population of Salvelinus in Bear Creek of the Alsek River Drainage, Yukon Territory

Author

C. B. Sikstrom

Subjects
Fishery, education.field_of_study, River drainage, Geography, biology, Ecology, Population, Aquatic Science, education, biology.organism_classification, Ecology, Evolution, Behavior and Systematics, Salvelinus
Abstract

A freshwater-resident population of Salvelinus was compared meristically and morphometrically with two forms of Salvelinus described by Cavender (1978). A comparison of the numbers of mandibular pores and branchiostegal rays, and gill raker morphology and head size revealed that the population of Salvelinus in Bear Creek corresponds to Cavender's specific distinction of a form which is generally characterized as anadromous Salvelinus malma. I suggest that the population of Salvelinus in Bear Creek was established from a natural colonization by formerly anadromous Dolly Varden char from the Gulf of Alaska.Key words: Salvelinus, zoogeography, meristics, Yukon Territory, Kluane National Park

Published
1980
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