Atlantic salmon and sea trout display synchronised smolt migration relative to linked environmental cues
Anadromous salmon and sea trout smolts face challenging migrations from freshwater to the marine environment characterised by high mortality. Therefore, the timing of smolt migration is likely to be critical for survival. Time-series comparing migration of Atlantic salmon and sea trout smolts in the...
Published in: | Scientific Reports |
---|---|
Main Authors: | , , , |
Format: | Text |
Language: | English |
Published: |
Nature Publishing Group UK
2020
|
Subjects: | |
Online Access: | http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7044379/ http://www.ncbi.nlm.nih.gov/pubmed/32103141 https://doi.org/10.1038/s41598-020-60588-0 |
id |
ftpubmed:oai:pubmedcentral.nih.gov:7044379 |
---|---|
record_format |
openpolar |
spelling |
ftpubmed:oai:pubmedcentral.nih.gov:7044379 2023-05-15T15:30:28+02:00 Atlantic salmon and sea trout display synchronised smolt migration relative to linked environmental cues Harvey, Alison C. Glover, Kevin A. Wennevik, Vidar Skaala, Øystein 2020-02-26 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7044379/ http://www.ncbi.nlm.nih.gov/pubmed/32103141 https://doi.org/10.1038/s41598-020-60588-0 en eng Nature Publishing Group UK http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7044379/ http://www.ncbi.nlm.nih.gov/pubmed/32103141 http://dx.doi.org/10.1038/s41598-020-60588-0 © The Author(s) 2020 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 license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license 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 license, visit http://creativecommons.org/licenses/by/4.0/. CC-BY Article Text 2020 ftpubmed https://doi.org/10.1038/s41598-020-60588-0 2020-03-08T01:43:17Z Anadromous salmon and sea trout smolts face challenging migrations from freshwater to the marine environment characterised by high mortality. Therefore, the timing of smolt migration is likely to be critical for survival. Time-series comparing migration of Atlantic salmon and sea trout smolts in the same river, and their response to the same environmental cues, are scarce. Here, we analysed migration timing of ~41 000 Atlantic salmon and sea trout smolts over a 19-year period from the river Guddalselva, western Norway. Trout displayed a longer migration window in earlier years, which decreased over time to become more similar to the salmon migration window. On average, salmon migrated out of the river earlier than trout. Migration of both species was significantly influenced by river water temperature and water discharge, but their relative influence varied across the years. On average, body-length of smolts of both species overlapped, however, size differences were observed within the migration period and among the years. We conclude that salmon and trout smolts in this river are highly synchronised and migrate in response to the same range of linked environmental cues. Text Atlantic salmon PubMed Central (PMC) Norway Scientific Reports 10 1 |
institution |
Open Polar |
collection |
PubMed Central (PMC) |
op_collection_id |
ftpubmed |
language |
English |
topic |
Article |
spellingShingle |
Article Harvey, Alison C. Glover, Kevin A. Wennevik, Vidar Skaala, Øystein Atlantic salmon and sea trout display synchronised smolt migration relative to linked environmental cues |
topic_facet |
Article |
description |
Anadromous salmon and sea trout smolts face challenging migrations from freshwater to the marine environment characterised by high mortality. Therefore, the timing of smolt migration is likely to be critical for survival. Time-series comparing migration of Atlantic salmon and sea trout smolts in the same river, and their response to the same environmental cues, are scarce. Here, we analysed migration timing of ~41 000 Atlantic salmon and sea trout smolts over a 19-year period from the river Guddalselva, western Norway. Trout displayed a longer migration window in earlier years, which decreased over time to become more similar to the salmon migration window. On average, salmon migrated out of the river earlier than trout. Migration of both species was significantly influenced by river water temperature and water discharge, but their relative influence varied across the years. On average, body-length of smolts of both species overlapped, however, size differences were observed within the migration period and among the years. We conclude that salmon and trout smolts in this river are highly synchronised and migrate in response to the same range of linked environmental cues. |
format |
Text |
author |
Harvey, Alison C. Glover, Kevin A. Wennevik, Vidar Skaala, Øystein |
author_facet |
Harvey, Alison C. Glover, Kevin A. Wennevik, Vidar Skaala, Øystein |
author_sort |
Harvey, Alison C. |
title |
Atlantic salmon and sea trout display synchronised smolt migration relative to linked environmental cues |
title_short |
Atlantic salmon and sea trout display synchronised smolt migration relative to linked environmental cues |
title_full |
Atlantic salmon and sea trout display synchronised smolt migration relative to linked environmental cues |
title_fullStr |
Atlantic salmon and sea trout display synchronised smolt migration relative to linked environmental cues |
title_full_unstemmed |
Atlantic salmon and sea trout display synchronised smolt migration relative to linked environmental cues |
title_sort |
atlantic salmon and sea trout display synchronised smolt migration relative to linked environmental cues |
publisher |
Nature Publishing Group UK |
publishDate |
2020 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7044379/ http://www.ncbi.nlm.nih.gov/pubmed/32103141 https://doi.org/10.1038/s41598-020-60588-0 |
geographic |
Norway |
geographic_facet |
Norway |
genre |
Atlantic salmon |
genre_facet |
Atlantic salmon |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7044379/ http://www.ncbi.nlm.nih.gov/pubmed/32103141 http://dx.doi.org/10.1038/s41598-020-60588-0 |
op_rights |
© The Author(s) 2020 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 license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license 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 license, visit http://creativecommons.org/licenses/by/4.0/. |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1038/s41598-020-60588-0 |
container_title |
Scientific Reports |
container_volume |
10 |
container_issue |
1 |
_version_ |
1766360919743397888 |