Life-history and systematics of Arctic char, Salvelinus alpinus (Linnaeus) in the Babbage River system, Yukon Territory ...
Bibliography: p. 138-154. ... : Three populations of Arctic char (Salvelinus alpinus [Linnaeus]) in the Babbage River system, Yukon Territory, had meristic characters that corresponded to those of the Western Arctic-Bering Sea form of the Arctic char. These populations consisted of: 1. Self-perpetua...
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| Format: | Master Thesis |
| Language: | English |
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University of Calgary
1975
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| Online Access: | https://dx.doi.org/10.11575/prism/18426 https://prism.ucalgary.ca/handle/1880/15084 |
| Summary: | Bibliography: p. 138-154. ... : Three populations of Arctic char (Salvelinus alpinus [Linnaeus]) in the Babbage River system, Yukon Territory, had meristic characters that corresponded to those of the Western Arctic-Bering Sea form of the Arctic char. These populations consisted of: 1. Self-perpetuating non-anadromous Arctic char isolated in the spring-fed headwaters of the Babbage River; 2. non-anadromous Arctic char below a waterfall on the Babbage River which are derived from the isolated population; 3. a dimorphic population (anadromous males and females and mature non-anadromous males) utilizing Fish Hole Creek, a spring-fed tributary to the Babbage River . Three life-history patterns occur among these populations: anadromy , self- perpetuating non-anadromy, and non-anadromy in which only mature males are present. The non-anadromous Arctic char are characterized by small size (maximum 395 mm), low growth rates and low fecundities (maximum 653 eggs). Mature fish were darkly pigmented and parr marks and spawning colouration were ... |
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