Timing of habitat shift by Atlantic salmon parr from fluvial to lacustrine habitat: analysis of age distribution, growth, and scale characteristics
This study investigated the timing of a habitat shift from fluvial to lacustrine habitat of Atlantic salmon, Salmo salar, parr in a subarctic river in northern Finland and whether the individuals that shifted already had the best growth rate prior to the shift or, alternatively, whether the shift wa...
Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
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1998
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Online Access: | http://dx.doi.org/10.1139/f98-107 http://www.nrcresearchpress.com/doi/pdf/10.1139/f98-107 |
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crcansciencepubl:10.1139/f98-107 2023-12-17T10:27:20+01:00 Timing of habitat shift by Atlantic salmon parr from fluvial to lacustrine habitat: analysis of age distribution, growth, and scale characteristics Erkinaro, Jaakko Niemelä, Eero Saari, Aila Shustov, Yuri Jørgensen, Lisbeth 1998 http://dx.doi.org/10.1139/f98-107 http://www.nrcresearchpress.com/doi/pdf/10.1139/f98-107 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Fisheries and Aquatic Sciences volume 55, issue 10, page 2266-2273 ISSN 0706-652X 1205-7533 Aquatic Science Ecology, Evolution, Behavior and Systematics journal-article 1998 crcansciencepubl https://doi.org/10.1139/f98-107 2023-11-19T13:39:23Z This study investigated the timing of a habitat shift from fluvial to lacustrine habitat of Atlantic salmon, Salmo salar, parr in a subarctic river in northern Finland and whether the individuals that shifted already had the best growth rate prior to the shift or, alternatively, whether the shift was triggered by competition-induced growth depression. The age distribution of parr indicated that most of the fish that shifted belonged to the age group 2+ and the proportion of 1+ fish was less than 3%. However, the analyses of somatic growth and scale characteristics reflected an earlier shift, at the age of 1+, for the greater part of the lacustrine fish. The growth of lacustrine fish exceeded that of their fluvial counterparts after the first year of life. Based on the growth of the first year, no indications that the lacustrine parr were recruited from the fastest growing part of the population were found. However, the growth patterns during the second year may indicate that fluvial parr with the fastest growth at age 1+ may be those that shift at age 2+. Some evidence of growth depression in fluvial fish was found. Article in Journal/Newspaper Atlantic salmon Northern Finland Salmo salar Subarctic Canadian Science Publishing (via Crossref) Canadian Journal of Fisheries and Aquatic Sciences 55 10 2266 2273 |
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Open Polar |
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Canadian Science Publishing (via Crossref) |
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crcansciencepubl |
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English |
topic |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
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Aquatic Science Ecology, Evolution, Behavior and Systematics Erkinaro, Jaakko Niemelä, Eero Saari, Aila Shustov, Yuri Jørgensen, Lisbeth Timing of habitat shift by Atlantic salmon parr from fluvial to lacustrine habitat: analysis of age distribution, growth, and scale characteristics |
topic_facet |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
description |
This study investigated the timing of a habitat shift from fluvial to lacustrine habitat of Atlantic salmon, Salmo salar, parr in a subarctic river in northern Finland and whether the individuals that shifted already had the best growth rate prior to the shift or, alternatively, whether the shift was triggered by competition-induced growth depression. The age distribution of parr indicated that most of the fish that shifted belonged to the age group 2+ and the proportion of 1+ fish was less than 3%. However, the analyses of somatic growth and scale characteristics reflected an earlier shift, at the age of 1+, for the greater part of the lacustrine fish. The growth of lacustrine fish exceeded that of their fluvial counterparts after the first year of life. Based on the growth of the first year, no indications that the lacustrine parr were recruited from the fastest growing part of the population were found. However, the growth patterns during the second year may indicate that fluvial parr with the fastest growth at age 1+ may be those that shift at age 2+. Some evidence of growth depression in fluvial fish was found. |
format |
Article in Journal/Newspaper |
author |
Erkinaro, Jaakko Niemelä, Eero Saari, Aila Shustov, Yuri Jørgensen, Lisbeth |
author_facet |
Erkinaro, Jaakko Niemelä, Eero Saari, Aila Shustov, Yuri Jørgensen, Lisbeth |
author_sort |
Erkinaro, Jaakko |
title |
Timing of habitat shift by Atlantic salmon parr from fluvial to lacustrine habitat: analysis of age distribution, growth, and scale characteristics |
title_short |
Timing of habitat shift by Atlantic salmon parr from fluvial to lacustrine habitat: analysis of age distribution, growth, and scale characteristics |
title_full |
Timing of habitat shift by Atlantic salmon parr from fluvial to lacustrine habitat: analysis of age distribution, growth, and scale characteristics |
title_fullStr |
Timing of habitat shift by Atlantic salmon parr from fluvial to lacustrine habitat: analysis of age distribution, growth, and scale characteristics |
title_full_unstemmed |
Timing of habitat shift by Atlantic salmon parr from fluvial to lacustrine habitat: analysis of age distribution, growth, and scale characteristics |
title_sort |
timing of habitat shift by atlantic salmon parr from fluvial to lacustrine habitat: analysis of age distribution, growth, and scale characteristics |
publisher |
Canadian Science Publishing |
publishDate |
1998 |
url |
http://dx.doi.org/10.1139/f98-107 http://www.nrcresearchpress.com/doi/pdf/10.1139/f98-107 |
genre |
Atlantic salmon Northern Finland Salmo salar Subarctic |
genre_facet |
Atlantic salmon Northern Finland Salmo salar Subarctic |
op_source |
Canadian Journal of Fisheries and Aquatic Sciences volume 55, issue 10, page 2266-2273 ISSN 0706-652X 1205-7533 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/f98-107 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
container_volume |
55 |
container_issue |
10 |
container_start_page |
2266 |
op_container_end_page |
2273 |
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1785579172747280384 |