Timing of smolt migration in sympatric populations of Atlantic salmon ( Salmo salar), brown trout ( Salmo trutta), and Arctic char ( Salvelinus alpinus)
A study over a 22-year period of first-time migrants (smolts) of three sympatric salmonids (Atlantic salmon ( Salmo salar ), brown trout ( Salmo trutta ), and Arctic char ( Salvelinus alpinus )) in a watercourse in northern Norway demonstrated that although there was considerable overlap in smolt mi...
Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
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Format: | Article in Journal/Newspaper |
Language: | English |
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Canadian Science Publishing
2012
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Online Access: | http://dx.doi.org/10.1139/f2012-005 http://www.nrcresearchpress.com/doi/full-xml/10.1139/f2012-005 http://www.nrcresearchpress.com/doi/pdf/10.1139/f2012-005 |
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crcansciencepubl:10.1139/f2012-005 2024-05-19T07:34:18+00:00 Timing of smolt migration in sympatric populations of Atlantic salmon ( Salmo salar), brown trout ( Salmo trutta), and Arctic char ( Salvelinus alpinus) Jensen, Arne J. Finstad, Bengt Fiske, Peder Hvidsten, Nils Arne Rikardsen, Audun H. Saksgård, Laila Bradford, Michael 2012 http://dx.doi.org/10.1139/f2012-005 http://www.nrcresearchpress.com/doi/full-xml/10.1139/f2012-005 http://www.nrcresearchpress.com/doi/pdf/10.1139/f2012-005 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Fisheries and Aquatic Sciences volume 69, issue 4, page 711-723 ISSN 0706-652X 1205-7533 journal-article 2012 crcansciencepubl https://doi.org/10.1139/f2012-005 2024-04-25T06:52:01Z A study over a 22-year period of first-time migrants (smolts) of three sympatric salmonids (Atlantic salmon ( Salmo salar ), brown trout ( Salmo trutta ), and Arctic char ( Salvelinus alpinus )) in a watercourse in northern Norway demonstrated that although there was considerable overlap in smolt migration timing among the species, Atlantic salmon migrated first, followed by Arctic char, and finally brown trout. The migration period of Arctic char had a smaller range and less annual variation than those of the two other species, possibly partly related to their more lake-dwelling habitat preference. For all species, water flow was important in explaining day-to-day variations in smolt runs. Water flow was most important for brown trout, change in flow for Atlantic salmon, whereas photoperiod was most important for Arctic char. These results suggest that both age and size of smolts and the timing of the smolt migration have been shaped by the different habitat preferences of these species both in fresh water and sea through local selection. Article in Journal/Newspaper Arctic Atlantic salmon Northern Norway Salmo salar Salvelinus alpinus Canadian Science Publishing Canadian Journal of Fisheries and Aquatic Sciences 69 4 711 723 |
institution |
Open Polar |
collection |
Canadian Science Publishing |
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crcansciencepubl |
language |
English |
description |
A study over a 22-year period of first-time migrants (smolts) of three sympatric salmonids (Atlantic salmon ( Salmo salar ), brown trout ( Salmo trutta ), and Arctic char ( Salvelinus alpinus )) in a watercourse in northern Norway demonstrated that although there was considerable overlap in smolt migration timing among the species, Atlantic salmon migrated first, followed by Arctic char, and finally brown trout. The migration period of Arctic char had a smaller range and less annual variation than those of the two other species, possibly partly related to their more lake-dwelling habitat preference. For all species, water flow was important in explaining day-to-day variations in smolt runs. Water flow was most important for brown trout, change in flow for Atlantic salmon, whereas photoperiod was most important for Arctic char. These results suggest that both age and size of smolts and the timing of the smolt migration have been shaped by the different habitat preferences of these species both in fresh water and sea through local selection. |
author2 |
Bradford, Michael |
format |
Article in Journal/Newspaper |
author |
Jensen, Arne J. Finstad, Bengt Fiske, Peder Hvidsten, Nils Arne Rikardsen, Audun H. Saksgård, Laila |
spellingShingle |
Jensen, Arne J. Finstad, Bengt Fiske, Peder Hvidsten, Nils Arne Rikardsen, Audun H. Saksgård, Laila Timing of smolt migration in sympatric populations of Atlantic salmon ( Salmo salar), brown trout ( Salmo trutta), and Arctic char ( Salvelinus alpinus) |
author_facet |
Jensen, Arne J. Finstad, Bengt Fiske, Peder Hvidsten, Nils Arne Rikardsen, Audun H. Saksgård, Laila |
author_sort |
Jensen, Arne J. |
title |
Timing of smolt migration in sympatric populations of Atlantic salmon ( Salmo salar), brown trout ( Salmo trutta), and Arctic char ( Salvelinus alpinus) |
title_short |
Timing of smolt migration in sympatric populations of Atlantic salmon ( Salmo salar), brown trout ( Salmo trutta), and Arctic char ( Salvelinus alpinus) |
title_full |
Timing of smolt migration in sympatric populations of Atlantic salmon ( Salmo salar), brown trout ( Salmo trutta), and Arctic char ( Salvelinus alpinus) |
title_fullStr |
Timing of smolt migration in sympatric populations of Atlantic salmon ( Salmo salar), brown trout ( Salmo trutta), and Arctic char ( Salvelinus alpinus) |
title_full_unstemmed |
Timing of smolt migration in sympatric populations of Atlantic salmon ( Salmo salar), brown trout ( Salmo trutta), and Arctic char ( Salvelinus alpinus) |
title_sort |
timing of smolt migration in sympatric populations of atlantic salmon ( salmo salar), brown trout ( salmo trutta), and arctic char ( salvelinus alpinus) |
publisher |
Canadian Science Publishing |
publishDate |
2012 |
url |
http://dx.doi.org/10.1139/f2012-005 http://www.nrcresearchpress.com/doi/full-xml/10.1139/f2012-005 http://www.nrcresearchpress.com/doi/pdf/10.1139/f2012-005 |
genre |
Arctic Atlantic salmon Northern Norway Salmo salar Salvelinus alpinus |
genre_facet |
Arctic Atlantic salmon Northern Norway Salmo salar Salvelinus alpinus |
op_source |
Canadian Journal of Fisheries and Aquatic Sciences volume 69, issue 4, page 711-723 ISSN 0706-652X 1205-7533 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/f2012-005 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
container_volume |
69 |
container_issue |
4 |
container_start_page |
711 |
op_container_end_page |
723 |
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1799472301872250880 |