Lakeward Migrations by Juvenile Atlantic Salmon, Salmo salar
Atlantic salmon parr, Salmo salar, undertook lakeward migrations from outlet streams in the Wings Brook system, eastern Newfoundland. Lakeward movement occurred from May through November, intensifying over a 6- to 8-wk period during spring. Parr remained in the lakes where they either matured (usual...
Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
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Language: | English |
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Canadian Science Publishing
1986
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Online Access: | http://dx.doi.org/10.1139/f86-090 http://www.nrcresearchpress.com/doi/pdf/10.1139/f86-090 |
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crcansciencepubl:10.1139/f86-090 2024-09-30T14:32:22+00:00 Lakeward Migrations by Juvenile Atlantic Salmon, Salmo salar Hutchings, Jeffrey A. 1986 http://dx.doi.org/10.1139/f86-090 http://www.nrcresearchpress.com/doi/pdf/10.1139/f86-090 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Fisheries and Aquatic Sciences volume 43, issue 4, page 732-741 ISSN 0706-652X 1205-7533 journal-article 1986 crcansciencepubl https://doi.org/10.1139/f86-090 2024-09-19T04:09:50Z Atlantic salmon parr, Salmo salar, undertook lakeward migrations from outlet streams in the Wings Brook system, eastern Newfoundland. Lakeward movement occurred from May through November, intensifying over a 6- to 8-wk period during spring. Parr remained in the lakes where they either matured (usually males) or smoltified (predominantly females) before returning to the streams. Mature parr emigrated from the lakes during autumn whereas smolts entered the streams during spring. Lakes provided conditions for increased parr growth and survival to the smolt stage relative to the riverine environment, and appeared to represent important overwintering habitat. Smolt production occurred almost entirely within the lakes. Parr movement into lakes could not be explained by physical environmental factors. Lakeward migrations appear to have an adaptive basis and can be explained as an evolutionarily stable reproductive tactic. Article in Journal/Newspaper Atlantic salmon Newfoundland Salmo salar Canadian Science Publishing Canadian Journal of Fisheries and Aquatic Sciences 43 4 732 741 |
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Open Polar |
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Canadian Science Publishing |
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crcansciencepubl |
language |
English |
description |
Atlantic salmon parr, Salmo salar, undertook lakeward migrations from outlet streams in the Wings Brook system, eastern Newfoundland. Lakeward movement occurred from May through November, intensifying over a 6- to 8-wk period during spring. Parr remained in the lakes where they either matured (usually males) or smoltified (predominantly females) before returning to the streams. Mature parr emigrated from the lakes during autumn whereas smolts entered the streams during spring. Lakes provided conditions for increased parr growth and survival to the smolt stage relative to the riverine environment, and appeared to represent important overwintering habitat. Smolt production occurred almost entirely within the lakes. Parr movement into lakes could not be explained by physical environmental factors. Lakeward migrations appear to have an adaptive basis and can be explained as an evolutionarily stable reproductive tactic. |
format |
Article in Journal/Newspaper |
author |
Hutchings, Jeffrey A. |
spellingShingle |
Hutchings, Jeffrey A. Lakeward Migrations by Juvenile Atlantic Salmon, Salmo salar |
author_facet |
Hutchings, Jeffrey A. |
author_sort |
Hutchings, Jeffrey A. |
title |
Lakeward Migrations by Juvenile Atlantic Salmon, Salmo salar |
title_short |
Lakeward Migrations by Juvenile Atlantic Salmon, Salmo salar |
title_full |
Lakeward Migrations by Juvenile Atlantic Salmon, Salmo salar |
title_fullStr |
Lakeward Migrations by Juvenile Atlantic Salmon, Salmo salar |
title_full_unstemmed |
Lakeward Migrations by Juvenile Atlantic Salmon, Salmo salar |
title_sort |
lakeward migrations by juvenile atlantic salmon, salmo salar |
publisher |
Canadian Science Publishing |
publishDate |
1986 |
url |
http://dx.doi.org/10.1139/f86-090 http://www.nrcresearchpress.com/doi/pdf/10.1139/f86-090 |
genre |
Atlantic salmon Newfoundland Salmo salar |
genre_facet |
Atlantic salmon Newfoundland Salmo salar |
op_source |
Canadian Journal of Fisheries and Aquatic Sciences volume 43, issue 4, page 732-741 ISSN 0706-652X 1205-7533 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/f86-090 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
container_volume |
43 |
container_issue |
4 |
container_start_page |
732 |
op_container_end_page |
741 |
_version_ |
1811636541529784320 |