An Isolated Population of Arctic Char ( Salvelinus alpinus) Inhabiting a Warm Mineral Spring Above a Waterfall at Cache Creek, Northwest Territories
Cache Creek Spring provides an unusual overwintering habitat for a population of Arctic char (Salvelinus alpinus) isolated above a falls impassable to fish moving upstream. During winter, water temperatures (14–16 C) and dissolved solid concentrations (approximately 2600 ppm) are high and oxygen con...
Published in: | Journal of the Fisheries Research Board of Canada |
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Format: | Article in Journal/Newspaper |
Language: | English |
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Canadian Science Publishing
1974
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Online Access: | http://dx.doi.org/10.1139/f74-169 http://www.nrcresearchpress.com/doi/pdf/10.1139/f74-169 |
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crcansciencepubl:10.1139/f74-169 2024-09-15T18:26:36+00:00 An Isolated Population of Arctic Char ( Salvelinus alpinus) Inhabiting a Warm Mineral Spring Above a Waterfall at Cache Creek, Northwest Territories McCart, P. Bain, H. 1974 http://dx.doi.org/10.1139/f74-169 http://www.nrcresearchpress.com/doi/pdf/10.1139/f74-169 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Journal of the Fisheries Research Board of Canada volume 31, issue 8, page 1408-1414 ISSN 0015-296X journal-article 1974 crcansciencepubl https://doi.org/10.1139/f74-169 2024-07-11T04:12:02Z Cache Creek Spring provides an unusual overwintering habitat for a population of Arctic char (Salvelinus alpinus) isolated above a falls impassable to fish moving upstream. During winter, water temperatures (14–16 C) and dissolved solid concentrations (approximately 2600 ppm) are high and oxygen concentrations (0.2–6.8 ppm) are low. Arctic char in the springs differ meristically from those downstream of the falls. The former have significantly more gillrakers (mean 21.7 compared with 21.1) and parr marks (15.1 and 13.5) but fewer pyloric caeca (26.0 and 28.2) and vertebrae (64.7 and 67.1) than the latter. Growth appears similar to that of char inhabiting more typical spring habitats. Article in Journal/Newspaper Northwest Territories Salvelinus alpinus Canadian Science Publishing Journal of the Fisheries Research Board of Canada 31 8 1408 1414 |
institution |
Open Polar |
collection |
Canadian Science Publishing |
op_collection_id |
crcansciencepubl |
language |
English |
description |
Cache Creek Spring provides an unusual overwintering habitat for a population of Arctic char (Salvelinus alpinus) isolated above a falls impassable to fish moving upstream. During winter, water temperatures (14–16 C) and dissolved solid concentrations (approximately 2600 ppm) are high and oxygen concentrations (0.2–6.8 ppm) are low. Arctic char in the springs differ meristically from those downstream of the falls. The former have significantly more gillrakers (mean 21.7 compared with 21.1) and parr marks (15.1 and 13.5) but fewer pyloric caeca (26.0 and 28.2) and vertebrae (64.7 and 67.1) than the latter. Growth appears similar to that of char inhabiting more typical spring habitats. |
format |
Article in Journal/Newspaper |
author |
McCart, P. Bain, H. |
spellingShingle |
McCart, P. Bain, H. An Isolated Population of Arctic Char ( Salvelinus alpinus) Inhabiting a Warm Mineral Spring Above a Waterfall at Cache Creek, Northwest Territories |
author_facet |
McCart, P. Bain, H. |
author_sort |
McCart, P. |
title |
An Isolated Population of Arctic Char ( Salvelinus alpinus) Inhabiting a Warm Mineral Spring Above a Waterfall at Cache Creek, Northwest Territories |
title_short |
An Isolated Population of Arctic Char ( Salvelinus alpinus) Inhabiting a Warm Mineral Spring Above a Waterfall at Cache Creek, Northwest Territories |
title_full |
An Isolated Population of Arctic Char ( Salvelinus alpinus) Inhabiting a Warm Mineral Spring Above a Waterfall at Cache Creek, Northwest Territories |
title_fullStr |
An Isolated Population of Arctic Char ( Salvelinus alpinus) Inhabiting a Warm Mineral Spring Above a Waterfall at Cache Creek, Northwest Territories |
title_full_unstemmed |
An Isolated Population of Arctic Char ( Salvelinus alpinus) Inhabiting a Warm Mineral Spring Above a Waterfall at Cache Creek, Northwest Territories |
title_sort |
isolated population of arctic char ( salvelinus alpinus) inhabiting a warm mineral spring above a waterfall at cache creek, northwest territories |
publisher |
Canadian Science Publishing |
publishDate |
1974 |
url |
http://dx.doi.org/10.1139/f74-169 http://www.nrcresearchpress.com/doi/pdf/10.1139/f74-169 |
genre |
Northwest Territories Salvelinus alpinus |
genre_facet |
Northwest Territories Salvelinus alpinus |
op_source |
Journal of the Fisheries Research Board of Canada volume 31, issue 8, page 1408-1414 ISSN 0015-296X |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/f74-169 |
container_title |
Journal of the Fisheries Research Board of Canada |
container_volume |
31 |
container_issue |
8 |
container_start_page |
1408 |
op_container_end_page |
1414 |
_version_ |
1810467105876738048 |