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-perpetuating n...
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ftunivcalgary:oai:prism.ucalgary.ca:1880/15084 2023-08-27T04:06:40+02:00 Life-history and systematics of Arctic char, Salvelinus alpinus (Linnaeus) in the Babbage River system, Yukon Territory Bain, Lawrence Hugh Davies, Ronald W. 200000338 1975 xvii, 162 leaves : ill. 30 cm. application/pdf http://hdl.handle.net/1880/15084 https://doi.org/10.11575/PRISM/18426 eng eng University of Calgary Calgary 82480923 Bain, L. H. (1975). Life-history and systematics of Arctic char, Salvelinus alpinus (Linnaeus) in the Babbage River system, Yukon Territory (Unpublished master's thesis). University of Calgary, Calgary, AB. doi:10.11575/PRISM/18426 http://dx.doi.org/10.11575/PRISM/18426 QL 638 S2 B33 1975 Microfiche http://hdl.handle.net/1880/15084 University of Calgary graduate students retain copyright ownership and moral rights for their thesis. You may use this material in any way that is permitted by the Copyright Act or through licensing that has been assigned to the document. For uses that are not allowable under copyright legislation or licensing, you are required to seek permission. QL 638 S2 B33 1975 Microfiche Arctic char Fishes - Yukon Territory master thesis 1975 ftunivcalgary https://doi.org/10.11575/PRISM/18426 2023-08-06T06:27:20Z 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 retained throughout life . The spawning season appears to be in the fall (mid-September to mid- October) with the possibility of earlier spawning (August) occurring in the spring channels in the upper Babbage River. The non-anadromous populations (including the mature nonnnadromous males in Fish Hole Creek) demonstrate inherent differences in growth rates, age at maturity, longevity, peak spawning activity and meristic characters. There are substantial differences between the anadromous and nonanadromous populations in growth rate, age at maturity, fecundity and food habits. The former are characterized by large size (maximum 629 mm), relatively fast growth rate, high fecundity (maximum 5151 eggs) and repeat spawning after maturity. Post-spawning mortality is not indicated and spawning colouration is seasonal. The spawning season appeared to be sometime between mid- September and late October, when the eggs of mature females averaged 4.4 mm in diameter. Some meristic characters (first ... Master Thesis Arctic Arctic Bering Sea Salvelinus alpinus Yukon PRISM - University of Calgary Digital Repository Arctic Yukon Bering Sea Babbage River ENVELOPE(-138.455,-138.455,69.233,69.233) Fish Hole Creek ENVELOPE(-138.789,-138.789,68.800,68.800) |
institution |
Open Polar |
collection |
PRISM - University of Calgary Digital Repository |
op_collection_id |
ftunivcalgary |
language |
English |
topic |
QL 638 S2 B33 1975 Microfiche Arctic char Fishes - Yukon Territory |
spellingShingle |
QL 638 S2 B33 1975 Microfiche Arctic char Fishes - Yukon Territory Bain, Lawrence Hugh Life-history and systematics of Arctic char, Salvelinus alpinus (Linnaeus) in the Babbage River system, Yukon Territory |
topic_facet |
QL 638 S2 B33 1975 Microfiche Arctic char Fishes - Yukon Territory |
description |
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 retained throughout life . The spawning season appears to be in the fall (mid-September to mid- October) with the possibility of earlier spawning (August) occurring in the spring channels in the upper Babbage River. The non-anadromous populations (including the mature nonnnadromous males in Fish Hole Creek) demonstrate inherent differences in growth rates, age at maturity, longevity, peak spawning activity and meristic characters. There are substantial differences between the anadromous and nonanadromous populations in growth rate, age at maturity, fecundity and food habits. The former are characterized by large size (maximum 629 mm), relatively fast growth rate, high fecundity (maximum 5151 eggs) and repeat spawning after maturity. Post-spawning mortality is not indicated and spawning colouration is seasonal. The spawning season appeared to be sometime between mid- September and late October, when the eggs of mature females averaged 4.4 mm in diameter. Some meristic characters (first ... |
author2 |
Davies, Ronald W. |
format |
Master Thesis |
author |
Bain, Lawrence Hugh |
author_facet |
Bain, Lawrence Hugh |
author_sort |
Bain, Lawrence Hugh |
title |
Life-history and systematics of Arctic char, Salvelinus alpinus (Linnaeus) in the Babbage River system, Yukon Territory |
title_short |
Life-history and systematics of Arctic char, Salvelinus alpinus (Linnaeus) in the Babbage River system, Yukon Territory |
title_full |
Life-history and systematics of Arctic char, Salvelinus alpinus (Linnaeus) in the Babbage River system, Yukon Territory |
title_fullStr |
Life-history and systematics of Arctic char, Salvelinus alpinus (Linnaeus) in the Babbage River system, Yukon Territory |
title_full_unstemmed |
Life-history and systematics of Arctic char, Salvelinus alpinus (Linnaeus) in the Babbage River system, Yukon Territory |
title_sort |
life-history and systematics of arctic char, salvelinus alpinus (linnaeus) in the babbage river system, yukon territory |
publisher |
University of Calgary |
publishDate |
1975 |
url |
http://hdl.handle.net/1880/15084 https://doi.org/10.11575/PRISM/18426 |
op_coverage |
200000338 |
long_lat |
ENVELOPE(-138.455,-138.455,69.233,69.233) ENVELOPE(-138.789,-138.789,68.800,68.800) |
geographic |
Arctic Yukon Bering Sea Babbage River Fish Hole Creek |
geographic_facet |
Arctic Yukon Bering Sea Babbage River Fish Hole Creek |
genre |
Arctic Arctic Bering Sea Salvelinus alpinus Yukon |
genre_facet |
Arctic Arctic Bering Sea Salvelinus alpinus Yukon |
op_relation |
82480923 Bain, L. H. (1975). Life-history and systematics of Arctic char, Salvelinus alpinus (Linnaeus) in the Babbage River system, Yukon Territory (Unpublished master's thesis). University of Calgary, Calgary, AB. doi:10.11575/PRISM/18426 http://dx.doi.org/10.11575/PRISM/18426 QL 638 S2 B33 1975 Microfiche http://hdl.handle.net/1880/15084 |
op_rights |
University of Calgary graduate students retain copyright ownership and moral rights for their thesis. You may use this material in any way that is permitted by the Copyright Act or through licensing that has been assigned to the document. For uses that are not allowable under copyright legislation or licensing, you are required to seek permission. |
op_doi |
https://doi.org/10.11575/PRISM/18426 |
_version_ |
1775347503816769536 |