Synchrony and multimodality in the timing of Atlantic salmon smolt migration in two Norwegian fjords
The timing of the smolt migration of Atlantic salmon (Salmo salar) is a phenological trait increasingly important to the fitness of this species. Understanding when and how smolts migrate to the sea is crucial to understanding how salmon populations will be affected by both climate change and the el...
Published in: | Scientific Reports |
---|---|
Main Authors: | , , , , , |
Format: | Text |
Language: | English |
Published: |
Nature Publishing Group UK
2021
|
Subjects: | |
Online Access: | http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7985142/ http://www.ncbi.nlm.nih.gov/pubmed/33753812 https://doi.org/10.1038/s41598-021-85941-9 |
id |
ftpubmed:oai:pubmedcentral.nih.gov:7985142 |
---|---|
record_format |
openpolar |
spelling |
ftpubmed:oai:pubmedcentral.nih.gov:7985142 2023-05-15T15:31:19+02:00 Synchrony and multimodality in the timing of Atlantic salmon smolt migration in two Norwegian fjords Bjerck, Helge B. Urke, Henning A. Haugen, Thrond O. Alfredsen, Jo Arve Ulvund, John Birger Kristensen, Torstein 2021-03-22 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7985142/ http://www.ncbi.nlm.nih.gov/pubmed/33753812 https://doi.org/10.1038/s41598-021-85941-9 en eng Nature Publishing Group UK http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7985142/ http://www.ncbi.nlm.nih.gov/pubmed/33753812 http://dx.doi.org/10.1038/s41598-021-85941-9 © The Author(s) 2021 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. CC-BY Sci Rep Article Text 2021 ftpubmed https://doi.org/10.1038/s41598-021-85941-9 2021-03-28T01:45:40Z The timing of the smolt migration of Atlantic salmon (Salmo salar) is a phenological trait increasingly important to the fitness of this species. Understanding when and how smolts migrate to the sea is crucial to understanding how salmon populations will be affected by both climate change and the elevated salmon lice concentrations produced by salmon farms. Here, acoustic telemetry was used to monitor the fjord migration of wild post-smolts from four rivers across two fjord systems in western Norway. Smolts began their migration throughout the month of May in all populations. Within-population, the timing of migration was multimodal with peaks in migration determined by the timing of spring floods. As a result, migrations were synchronized across populations with similar hydrology. There was little indication that the timing of migration had an impact on survival from the river mouth to the outer fjord. However, populations with longer fjord migrations experienced lower survival rates and had higher variance in fjord residency times. Explicit consideration of the multimodality inherent to the timing of smolt migration in these populations may help predict when smolts are in the fjord, as these modes seem predictable from available environmental data. Text Atlantic salmon Salmo salar PubMed Central (PMC) Norway Scientific Reports 11 1 |
institution |
Open Polar |
collection |
PubMed Central (PMC) |
op_collection_id |
ftpubmed |
language |
English |
topic |
Article |
spellingShingle |
Article Bjerck, Helge B. Urke, Henning A. Haugen, Thrond O. Alfredsen, Jo Arve Ulvund, John Birger Kristensen, Torstein Synchrony and multimodality in the timing of Atlantic salmon smolt migration in two Norwegian fjords |
topic_facet |
Article |
description |
The timing of the smolt migration of Atlantic salmon (Salmo salar) is a phenological trait increasingly important to the fitness of this species. Understanding when and how smolts migrate to the sea is crucial to understanding how salmon populations will be affected by both climate change and the elevated salmon lice concentrations produced by salmon farms. Here, acoustic telemetry was used to monitor the fjord migration of wild post-smolts from four rivers across two fjord systems in western Norway. Smolts began their migration throughout the month of May in all populations. Within-population, the timing of migration was multimodal with peaks in migration determined by the timing of spring floods. As a result, migrations were synchronized across populations with similar hydrology. There was little indication that the timing of migration had an impact on survival from the river mouth to the outer fjord. However, populations with longer fjord migrations experienced lower survival rates and had higher variance in fjord residency times. Explicit consideration of the multimodality inherent to the timing of smolt migration in these populations may help predict when smolts are in the fjord, as these modes seem predictable from available environmental data. |
format |
Text |
author |
Bjerck, Helge B. Urke, Henning A. Haugen, Thrond O. Alfredsen, Jo Arve Ulvund, John Birger Kristensen, Torstein |
author_facet |
Bjerck, Helge B. Urke, Henning A. Haugen, Thrond O. Alfredsen, Jo Arve Ulvund, John Birger Kristensen, Torstein |
author_sort |
Bjerck, Helge B. |
title |
Synchrony and multimodality in the timing of Atlantic salmon smolt migration in two Norwegian fjords |
title_short |
Synchrony and multimodality in the timing of Atlantic salmon smolt migration in two Norwegian fjords |
title_full |
Synchrony and multimodality in the timing of Atlantic salmon smolt migration in two Norwegian fjords |
title_fullStr |
Synchrony and multimodality in the timing of Atlantic salmon smolt migration in two Norwegian fjords |
title_full_unstemmed |
Synchrony and multimodality in the timing of Atlantic salmon smolt migration in two Norwegian fjords |
title_sort |
synchrony and multimodality in the timing of atlantic salmon smolt migration in two norwegian fjords |
publisher |
Nature Publishing Group UK |
publishDate |
2021 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7985142/ http://www.ncbi.nlm.nih.gov/pubmed/33753812 https://doi.org/10.1038/s41598-021-85941-9 |
geographic |
Norway |
geographic_facet |
Norway |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
Sci Rep |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7985142/ http://www.ncbi.nlm.nih.gov/pubmed/33753812 http://dx.doi.org/10.1038/s41598-021-85941-9 |
op_rights |
© The Author(s) 2021 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1038/s41598-021-85941-9 |
container_title |
Scientific Reports |
container_volume |
11 |
container_issue |
1 |
_version_ |
1766361814124199936 |