Basin-scale phenology and effects of climate variability on global timing of initial seaward migration of Atlantic salmon (Salmo salar)
15 pages, 7 figures, 2 tables Migrations between different habitats are key events in the lives of many organisms. Such movements involve annually recurring travel over long distances usually triggered by seasonal changes in the environment. Often, the migration is associated with travel to or from...
Published in: | Global Change Biology |
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Format: | Article in Journal/Newspaper |
Language: | English |
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John Wiley & Sons
2014
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Online Access: | http://hdl.handle.net/10261/303964 https://doi.org/10.1111/gcb.12363 |
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ftcsic:oai:digital.csic.es:10261/303964 2024-02-11T10:02:05+01:00 Basin-scale phenology and effects of climate variability on global timing of initial seaward migration of Atlantic salmon (Salmo salar) Otero, Jaime L'Abée-Lund, Jan Henning Castro-Santos, Ted Leonardsson, Kjell Storvik, Geir O. Jonsson, Bror Dempson, Brian Russell, Ian C. Jensen, Arne J. Baglinière, Jean-Luc Dionne, Mélanie Armstrong, John D. Romakkaniemi, Atso Letcher, Benjamin H. Kocik, John F. Erkinaro, Jaakko Poole, Russell Rogan, Ger Lundqvist, Hans MacLean, Julian C. Jokikokko, Erkki Arnekleiv, Jo Vegar Kennedy, Richard J. Niemelä, Eero Caballero, Pablo Music, Paul A. Antonsson, Thorolfur Gudjonsson, Sigurdur Veselov, Alexey E. Lamberg, Anders Groom, Steve Taylor, Benjamin H. Taberner, Malcolm Dillane, Mary Arnason, Fridthjofur Horton, Gregg Hvidsten, Nils A. Jonsson, Ingi R. Jonsson, Nina McKelvey, Simon Næsje, Tor F. Skaala, Øystein Smith, Gordon W. Sægrov, Harald Stenseth, Nils Christian Vøllestad, Leif Asbjørn Norwegian Research Council 2014 http://hdl.handle.net/10261/303964 https://doi.org/10.1111/gcb.12363 en eng John Wiley & Sons https://doi.org/10.1111/gcb.12363 Sí Global Change Biology 20(1): 61-75 (2014) 1354-1013 http://hdl.handle.net/10261/303964 doi:10.1111/gcb.12363 1365-2486 23966281 none Atlantic salmon North Atlantic Freshwater conditions Phenology Sea surface temperature Smolt emigration artículo 2014 ftcsic https://doi.org/10.1111/gcb.12363 2024-01-16T11:39:11Z 15 pages, 7 figures, 2 tables Migrations between different habitats are key events in the lives of many organisms. Such movements involve annually recurring travel over long distances usually triggered by seasonal changes in the environment. Often, the migration is associated with travel to or from reproduction areas to regions of growth. Young anadromous Atlantic salmon (Salmo salar) emigrate from freshwater nursery areas during spring and early summer to feed and grow in the North Atlantic Ocean. The transition from the freshwater ('parr') stage to the migratory stage where they descend streams and enter salt water ('smolt') is characterized by morphological, physiological and behavioural changes where the timing of this parr-smolt transition is cued by photoperiod and water temperature. Environmental conditions in the freshwater habitat control the downstream migration and contribute to within- and among-river variation in migratory timing. Moreover, the timing of the freshwater emigration has likely evolved to meet environmental conditions in the ocean as these affect growth and survival of the post-smolts. Using generalized additive mixed-effects modelling, we analysed spatio-temporal variations in the dates of downstream smolt migration in 67 rivers throughout the North Atlantic during the last five decades and found that migrations were earlier in populations in the east than the west. After accounting for this spatial effect, the initiation of the downstream migration among rivers was positively associated with freshwater temperatures, up to about 10 °C and levelling off at higher values, and with sea-surface temperatures. Earlier migration occurred when river discharge levels were low but increasing. On average, the initiation of the smolt seaward migration has occurred 2.5 days earlier per decade throughout the basin of the North Atlantic. This shift in phenology matches changes in air, river, and ocean temperatures, suggesting that Atlantic salmon emigration is responding to the current global ... Article in Journal/Newspaper Atlantic salmon North Atlantic Salmo salar Digital.CSIC (Spanish National Research Council) Global Change Biology 20 1 61 75 |
institution |
Open Polar |
collection |
Digital.CSIC (Spanish National Research Council) |
op_collection_id |
ftcsic |
language |
English |
topic |
Atlantic salmon North Atlantic Freshwater conditions Phenology Sea surface temperature Smolt emigration |
spellingShingle |
Atlantic salmon North Atlantic Freshwater conditions Phenology Sea surface temperature Smolt emigration Otero, Jaime L'Abée-Lund, Jan Henning Castro-Santos, Ted Leonardsson, Kjell Storvik, Geir O. Jonsson, Bror Dempson, Brian Russell, Ian C. Jensen, Arne J. Baglinière, Jean-Luc Dionne, Mélanie Armstrong, John D. Romakkaniemi, Atso Letcher, Benjamin H. Kocik, John F. Erkinaro, Jaakko Poole, Russell Rogan, Ger Lundqvist, Hans MacLean, Julian C. Jokikokko, Erkki Arnekleiv, Jo Vegar Kennedy, Richard J. Niemelä, Eero Caballero, Pablo Music, Paul A. Antonsson, Thorolfur Gudjonsson, Sigurdur Veselov, Alexey E. Lamberg, Anders Groom, Steve Taylor, Benjamin H. Taberner, Malcolm Dillane, Mary Arnason, Fridthjofur Horton, Gregg Hvidsten, Nils A. Jonsson, Ingi R. Jonsson, Nina McKelvey, Simon Næsje, Tor F. Skaala, Øystein Smith, Gordon W. Sægrov, Harald Stenseth, Nils Christian Vøllestad, Leif Asbjørn Basin-scale phenology and effects of climate variability on global timing of initial seaward migration of Atlantic salmon (Salmo salar) |
topic_facet |
Atlantic salmon North Atlantic Freshwater conditions Phenology Sea surface temperature Smolt emigration |
description |
15 pages, 7 figures, 2 tables Migrations between different habitats are key events in the lives of many organisms. Such movements involve annually recurring travel over long distances usually triggered by seasonal changes in the environment. Often, the migration is associated with travel to or from reproduction areas to regions of growth. Young anadromous Atlantic salmon (Salmo salar) emigrate from freshwater nursery areas during spring and early summer to feed and grow in the North Atlantic Ocean. The transition from the freshwater ('parr') stage to the migratory stage where they descend streams and enter salt water ('smolt') is characterized by morphological, physiological and behavioural changes where the timing of this parr-smolt transition is cued by photoperiod and water temperature. Environmental conditions in the freshwater habitat control the downstream migration and contribute to within- and among-river variation in migratory timing. Moreover, the timing of the freshwater emigration has likely evolved to meet environmental conditions in the ocean as these affect growth and survival of the post-smolts. Using generalized additive mixed-effects modelling, we analysed spatio-temporal variations in the dates of downstream smolt migration in 67 rivers throughout the North Atlantic during the last five decades and found that migrations were earlier in populations in the east than the west. After accounting for this spatial effect, the initiation of the downstream migration among rivers was positively associated with freshwater temperatures, up to about 10 °C and levelling off at higher values, and with sea-surface temperatures. Earlier migration occurred when river discharge levels were low but increasing. On average, the initiation of the smolt seaward migration has occurred 2.5 days earlier per decade throughout the basin of the North Atlantic. This shift in phenology matches changes in air, river, and ocean temperatures, suggesting that Atlantic salmon emigration is responding to the current global ... |
author2 |
Norwegian Research Council |
format |
Article in Journal/Newspaper |
author |
Otero, Jaime L'Abée-Lund, Jan Henning Castro-Santos, Ted Leonardsson, Kjell Storvik, Geir O. Jonsson, Bror Dempson, Brian Russell, Ian C. Jensen, Arne J. Baglinière, Jean-Luc Dionne, Mélanie Armstrong, John D. Romakkaniemi, Atso Letcher, Benjamin H. Kocik, John F. Erkinaro, Jaakko Poole, Russell Rogan, Ger Lundqvist, Hans MacLean, Julian C. Jokikokko, Erkki Arnekleiv, Jo Vegar Kennedy, Richard J. Niemelä, Eero Caballero, Pablo Music, Paul A. Antonsson, Thorolfur Gudjonsson, Sigurdur Veselov, Alexey E. Lamberg, Anders Groom, Steve Taylor, Benjamin H. Taberner, Malcolm Dillane, Mary Arnason, Fridthjofur Horton, Gregg Hvidsten, Nils A. Jonsson, Ingi R. Jonsson, Nina McKelvey, Simon Næsje, Tor F. Skaala, Øystein Smith, Gordon W. Sægrov, Harald Stenseth, Nils Christian Vøllestad, Leif Asbjørn |
author_facet |
Otero, Jaime L'Abée-Lund, Jan Henning Castro-Santos, Ted Leonardsson, Kjell Storvik, Geir O. Jonsson, Bror Dempson, Brian Russell, Ian C. Jensen, Arne J. Baglinière, Jean-Luc Dionne, Mélanie Armstrong, John D. Romakkaniemi, Atso Letcher, Benjamin H. Kocik, John F. Erkinaro, Jaakko Poole, Russell Rogan, Ger Lundqvist, Hans MacLean, Julian C. Jokikokko, Erkki Arnekleiv, Jo Vegar Kennedy, Richard J. Niemelä, Eero Caballero, Pablo Music, Paul A. Antonsson, Thorolfur Gudjonsson, Sigurdur Veselov, Alexey E. Lamberg, Anders Groom, Steve Taylor, Benjamin H. Taberner, Malcolm Dillane, Mary Arnason, Fridthjofur Horton, Gregg Hvidsten, Nils A. Jonsson, Ingi R. Jonsson, Nina McKelvey, Simon Næsje, Tor F. Skaala, Øystein Smith, Gordon W. Sægrov, Harald Stenseth, Nils Christian Vøllestad, Leif Asbjørn |
author_sort |
Otero, Jaime |
title |
Basin-scale phenology and effects of climate variability on global timing of initial seaward migration of Atlantic salmon (Salmo salar) |
title_short |
Basin-scale phenology and effects of climate variability on global timing of initial seaward migration of Atlantic salmon (Salmo salar) |
title_full |
Basin-scale phenology and effects of climate variability on global timing of initial seaward migration of Atlantic salmon (Salmo salar) |
title_fullStr |
Basin-scale phenology and effects of climate variability on global timing of initial seaward migration of Atlantic salmon (Salmo salar) |
title_full_unstemmed |
Basin-scale phenology and effects of climate variability on global timing of initial seaward migration of Atlantic salmon (Salmo salar) |
title_sort |
basin-scale phenology and effects of climate variability on global timing of initial seaward migration of atlantic salmon (salmo salar) |
publisher |
John Wiley & Sons |
publishDate |
2014 |
url |
http://hdl.handle.net/10261/303964 https://doi.org/10.1111/gcb.12363 |
genre |
Atlantic salmon North Atlantic Salmo salar |
genre_facet |
Atlantic salmon North Atlantic Salmo salar |
op_relation |
https://doi.org/10.1111/gcb.12363 Sí Global Change Biology 20(1): 61-75 (2014) 1354-1013 http://hdl.handle.net/10261/303964 doi:10.1111/gcb.12363 1365-2486 23966281 |
op_rights |
none |
op_doi |
https://doi.org/10.1111/gcb.12363 |
container_title |
Global Change Biology |
container_volume |
20 |
container_issue |
1 |
container_start_page |
61 |
op_container_end_page |
75 |
_version_ |
1790597978091683840 |