Language:

Basin-scale phenology and effects of climate variability on global timing of initial seaward migration of Atlantic salmon (Salmo salar)

Global change biology, 2014-01, Vol.20 (1), p.61-75 [Peer Reviewed Journal]

2013 John Wiley & Sons Ltd ;2015 INIST-CNRS ;2013 John Wiley & Sons Ltd. ;Distributed under a Creative Commons Attribution 4.0 International License ;ISSN: 1354-1013 ;ISSN: 1365-2486 ;EISSN: 1365-2486 ;DOI: 10.1111/gcb.12363 ;PMID: 23966281

Full text available

Citations Cited by

Actions
1. Add to My Research
2. Remove from My Research
3. E-mail
4. Print
5. Permalink
6. Citation
7. EasyBib
8. EndNote
9. RefWorks
10. Delicious
11. Export RIS
12. Export BibTeX

Title:
Basin-scale phenology and effects of climate variability on global timing of initial seaward migration of Atlantic salmon (Salmo salar)
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 C. ; Vøllestad, Leif Asbjørn
Subjects: Animal Migration ; Animal populations ; Animals ; Atlantic salmon ; Biologi ; Biology ; Chlorophyll - analysis ; Climate Change ; Ecology ; Ekologi ; Fish migration ; Forest Science ; freshwater conditions ; Life Sciences ; Marine ; North Atlantic ; Oceans and Seas ; Phenology ; Rivers ; Salmo salar ; Salmo salar - physiology ; Salmon ; sea surface temperature ; Skogsvetenskap ; smolt emigration ; Temperature ; Time Factors
Is Part Of: Global change biology, 2014-01, Vol.20 (1), p.61-75
Description: 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 climate changes.
Publisher: Oxford: Blackwell Publishing Ltd
Language: English;Russian
Identifier: ISSN: 1354-1013
ISSN: 1365-2486
EISSN: 1365-2486
DOI: 10.1111/gcb.12363
PMID: 23966281
Source: MEDLINE
Alma/SFX Local Collection

Back to results list


INSPIRE LIBRARY - TON DUC THANG UNIVERSITY	(84-028) 37 755 057	Feedback
19 Nguyen Huu Tho St. Dist.7, HCM	thuvien@tdtu.edu.vn	Feedback

Basin-scale phenology and effects of climate variability on global timing of initial seaward migration of Atlantic salmon (Salmo salar)

2013 John Wiley & Sons Ltd ;2015 INIST-CNRS ;2013 John Wiley & Sons Ltd. ;Distributed under a Creative Commons Attribution 4.0 International License ;ISSN: 1354-1013 ;ISSN: 1365-2486 ;EISSN: 1365-2486 ;DOI: 10.1111/gcb.12363 ;PMID: 23966281

Searching Remote Databases, Please Wait