Validating timing of salmon smolt runs obtained by telemetry studies
Telemetry tags are increasingly used in management to monitor the migration timing of Atlantic salmon smolts (Salmo salar L.). It has been postulated that (1) effects from tagging and handling may alter migration behaviour, and (2) that the selection of fish during sampling is not representative of...
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Online Access: | https://hdl.handle.net/11250/2983282 https://doi.org/10.1111/fme.12495 |
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ftnorce:oai:norceresearch.brage.unit.no:11250/2983282 2023-05-15T15:31:18+02:00 Validating timing of salmon smolt runs obtained by telemetry studies Hulbak, Magnus Andre Hanssen, Erlend Mjelde Lennox, Robert Salvanes, Anne Gro Vea Barlaup, Bjørn Torgeir Gharbi, Naouel Nilsen, Tom Ole Vollset, Knut 2021 application/pdf https://hdl.handle.net/11250/2983282 https://doi.org/10.1111/fme.12495 eng eng Fisheries Management and Ecology. 2021, 28 428-436. urn:issn:0969-997X https://hdl.handle.net/11250/2983282 https://doi.org/10.1111/fme.12495 cristin:1921960 Navngivelse 4.0 Internasjonal http://creativecommons.org/licenses/by/4.0/deed.no © The Authors, 2021 CC-BY Fisheries Management and Ecology 28 428-436 Peer reviewed Journal article 2021 ftnorce https://doi.org/10.1111/fme.12495 2022-10-13T05:50:35Z Telemetry tags are increasingly used in management to monitor the migration timing of Atlantic salmon smolts (Salmo salar L.). It has been postulated that (1) effects from tagging and handling may alter migration behaviour, and (2) that the selection of fish during sampling is not representative of all migrating smolts, yielding bias in migration timing estimates. In the River Dale (Vestland, Norway), five groups of wild Atlantic salmon smolts (N = 385) were tagged in April–May and recaptured in a wolf trap. Migration timing was then compared to the untagged population. Migration timing differed between tagged (12 mm PIT) and untagged fish for 4/5 groups. Only fish tagged at the first time point did not have significantly different timing of migration from untagged counterparts. The relationship between length and the timing of migration was different for initial length and length at recapture; initial length suggested earlier migration of longer fish, but the extra time spent in the river prior to migrating for smolts that were initially smaller compensated for the size difference. The tagging protocol is crucial to obtaining representative migration timing results. Smolts should be tagged as early as possible and include the entire size distribution. publishedVersion Article in Journal/Newspaper Atlantic salmon Salmo salar NORCE vitenarkiv (Norwegian Research Centre) Norway Fisheries Management and Ecology 28 5 428 436 |
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Open Polar |
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NORCE vitenarkiv (Norwegian Research Centre) |
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ftnorce |
language |
English |
description |
Telemetry tags are increasingly used in management to monitor the migration timing of Atlantic salmon smolts (Salmo salar L.). It has been postulated that (1) effects from tagging and handling may alter migration behaviour, and (2) that the selection of fish during sampling is not representative of all migrating smolts, yielding bias in migration timing estimates. In the River Dale (Vestland, Norway), five groups of wild Atlantic salmon smolts (N = 385) were tagged in April–May and recaptured in a wolf trap. Migration timing was then compared to the untagged population. Migration timing differed between tagged (12 mm PIT) and untagged fish for 4/5 groups. Only fish tagged at the first time point did not have significantly different timing of migration from untagged counterparts. The relationship between length and the timing of migration was different for initial length and length at recapture; initial length suggested earlier migration of longer fish, but the extra time spent in the river prior to migrating for smolts that were initially smaller compensated for the size difference. The tagging protocol is crucial to obtaining representative migration timing results. Smolts should be tagged as early as possible and include the entire size distribution. publishedVersion |
format |
Article in Journal/Newspaper |
author |
Hulbak, Magnus Andre Hanssen, Erlend Mjelde Lennox, Robert Salvanes, Anne Gro Vea Barlaup, Bjørn Torgeir Gharbi, Naouel Nilsen, Tom Ole Vollset, Knut |
spellingShingle |
Hulbak, Magnus Andre Hanssen, Erlend Mjelde Lennox, Robert Salvanes, Anne Gro Vea Barlaup, Bjørn Torgeir Gharbi, Naouel Nilsen, Tom Ole Vollset, Knut Validating timing of salmon smolt runs obtained by telemetry studies |
author_facet |
Hulbak, Magnus Andre Hanssen, Erlend Mjelde Lennox, Robert Salvanes, Anne Gro Vea Barlaup, Bjørn Torgeir Gharbi, Naouel Nilsen, Tom Ole Vollset, Knut |
author_sort |
Hulbak, Magnus Andre |
title |
Validating timing of salmon smolt runs obtained by telemetry studies |
title_short |
Validating timing of salmon smolt runs obtained by telemetry studies |
title_full |
Validating timing of salmon smolt runs obtained by telemetry studies |
title_fullStr |
Validating timing of salmon smolt runs obtained by telemetry studies |
title_full_unstemmed |
Validating timing of salmon smolt runs obtained by telemetry studies |
title_sort |
validating timing of salmon smolt runs obtained by telemetry studies |
publishDate |
2021 |
url |
https://hdl.handle.net/11250/2983282 https://doi.org/10.1111/fme.12495 |
geographic |
Norway |
geographic_facet |
Norway |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
Fisheries Management and Ecology 28 428-436 |
op_relation |
Fisheries Management and Ecology. 2021, 28 428-436. urn:issn:0969-997X https://hdl.handle.net/11250/2983282 https://doi.org/10.1111/fme.12495 cristin:1921960 |
op_rights |
Navngivelse 4.0 Internasjonal http://creativecommons.org/licenses/by/4.0/deed.no © The Authors, 2021 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1111/fme.12495 |
container_title |
Fisheries Management and Ecology |
container_volume |
28 |
container_issue |
5 |
container_start_page |
428 |
op_container_end_page |
436 |
_version_ |
1766361787720007680 |