Origin of a Relict Population of Salvelinus in Bear Creek of the Alsek River Drainage, Yukon Territory
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 Sa...
| Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
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| Format: | Article in Journal/Newspaper |
| Language: | French |
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Canadian Science Publishing
1980
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| Online Access: | http://dx.doi.org/10.1139/f80-281 http://www.nrcresearchpress.com/doi/pdf/10.1139/f80-281 |
| Summary: | 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 |
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