Migration and habitat use of the landlocked riverine Atlantic salmon Salmo salar småblank
Abstract “Småblank” is the only population of Atlantic salmon in Europe living its entire life in the river habitat without performing migrations to the sea or lakes. Home range size and habitat use were compared between an unregulated tributary and hydro-power regulated parts of the main river duri...
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Springer Science and Business Media LLC
2020
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Online Access: | http://dx.doi.org/10.1007/s10750-020-04254-6 https://link.springer.com/content/pdf/10.1007/s10750-020-04254-6.pdf https://link.springer.com/article/10.1007/s10750-020-04254-6/fulltext.html |
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crspringernat:10.1007/s10750-020-04254-6 2023-05-15T15:31:20+02:00 Migration and habitat use of the landlocked riverine Atlantic salmon Salmo salar småblank Davidsen, Jan G. Eikås, Linda Hedger, Richard D. Thorstad, Eva B. Rønning, Lars Sjursen, Aslak D. Berg, Ole K. Bremset, Gunnbjørn Karlsson, Sten Sundt-Hansen, Line E. Nord-Trøndelag Energi selskap 2020 http://dx.doi.org/10.1007/s10750-020-04254-6 https://link.springer.com/content/pdf/10.1007/s10750-020-04254-6.pdf https://link.springer.com/article/10.1007/s10750-020-04254-6/fulltext.html en eng Springer Science and Business Media LLC https://creativecommons.org/licenses/by/4.0 https://creativecommons.org/licenses/by/4.0 CC-BY Hydrobiologia volume 847, issue 10, page 2295-2306 ISSN 0018-8158 1573-5117 Aquatic Science journal-article 2020 crspringernat https://doi.org/10.1007/s10750-020-04254-6 2022-01-04T16:30:49Z Abstract “Småblank” is the only population of Atlantic salmon in Europe living its entire life in the river habitat without performing migrations to the sea or lakes. Home range size and habitat use were compared between an unregulated tributary and hydro-power regulated parts of the main river during 2014–2017. In total, 140 småblank were tagged with radio transmitters and tracked for 4–5 months. Tagged fish tended to stay within small areas: the average 50% home range was 1123 m 2 and the average 95% home range was 4416 m 2 . Mean distance between the furthermost positions for individual fish during tracking was 242 m, and the fish did not migrate between different stretches of the river. The small home range and non-migrating behaviour may explain why småblank are divided into several genetically distinct populations with limited gene flow. The results showed that småblank were far more stationary than what is known for other landlocked salmon populations. Use of moderate or high water velocities’ (> 50 s −1 ) areas with coarse river substrates implies a vulnerability to anthropogenic effects such as water diversion, dams and weirs. Article in Journal/Newspaper Atlantic salmon Salmo salar Springer Nature (via Crossref) Hydrobiologia 847 10 2295 2306 |
institution |
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Springer Nature (via Crossref) |
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crspringernat |
language |
English |
topic |
Aquatic Science |
spellingShingle |
Aquatic Science Davidsen, Jan G. Eikås, Linda Hedger, Richard D. Thorstad, Eva B. Rønning, Lars Sjursen, Aslak D. Berg, Ole K. Bremset, Gunnbjørn Karlsson, Sten Sundt-Hansen, Line E. Migration and habitat use of the landlocked riverine Atlantic salmon Salmo salar småblank |
topic_facet |
Aquatic Science |
description |
Abstract “Småblank” is the only population of Atlantic salmon in Europe living its entire life in the river habitat without performing migrations to the sea or lakes. Home range size and habitat use were compared between an unregulated tributary and hydro-power regulated parts of the main river during 2014–2017. In total, 140 småblank were tagged with radio transmitters and tracked for 4–5 months. Tagged fish tended to stay within small areas: the average 50% home range was 1123 m 2 and the average 95% home range was 4416 m 2 . Mean distance between the furthermost positions for individual fish during tracking was 242 m, and the fish did not migrate between different stretches of the river. The small home range and non-migrating behaviour may explain why småblank are divided into several genetically distinct populations with limited gene flow. The results showed that småblank were far more stationary than what is known for other landlocked salmon populations. Use of moderate or high water velocities’ (> 50 s −1 ) areas with coarse river substrates implies a vulnerability to anthropogenic effects such as water diversion, dams and weirs. |
author2 |
Nord-Trøndelag Energi selskap |
format |
Article in Journal/Newspaper |
author |
Davidsen, Jan G. Eikås, Linda Hedger, Richard D. Thorstad, Eva B. Rønning, Lars Sjursen, Aslak D. Berg, Ole K. Bremset, Gunnbjørn Karlsson, Sten Sundt-Hansen, Line E. |
author_facet |
Davidsen, Jan G. Eikås, Linda Hedger, Richard D. Thorstad, Eva B. Rønning, Lars Sjursen, Aslak D. Berg, Ole K. Bremset, Gunnbjørn Karlsson, Sten Sundt-Hansen, Line E. |
author_sort |
Davidsen, Jan G. |
title |
Migration and habitat use of the landlocked riverine Atlantic salmon Salmo salar småblank |
title_short |
Migration and habitat use of the landlocked riverine Atlantic salmon Salmo salar småblank |
title_full |
Migration and habitat use of the landlocked riverine Atlantic salmon Salmo salar småblank |
title_fullStr |
Migration and habitat use of the landlocked riverine Atlantic salmon Salmo salar småblank |
title_full_unstemmed |
Migration and habitat use of the landlocked riverine Atlantic salmon Salmo salar småblank |
title_sort |
migration and habitat use of the landlocked riverine atlantic salmon salmo salar småblank |
publisher |
Springer Science and Business Media LLC |
publishDate |
2020 |
url |
http://dx.doi.org/10.1007/s10750-020-04254-6 https://link.springer.com/content/pdf/10.1007/s10750-020-04254-6.pdf https://link.springer.com/article/10.1007/s10750-020-04254-6/fulltext.html |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
Hydrobiologia volume 847, issue 10, page 2295-2306 ISSN 0018-8158 1573-5117 |
op_rights |
https://creativecommons.org/licenses/by/4.0 https://creativecommons.org/licenses/by/4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1007/s10750-020-04254-6 |
container_title |
Hydrobiologia |
container_volume |
847 |
container_issue |
10 |
container_start_page |
2295 |
op_container_end_page |
2306 |
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1766361822302044160 |