Synchrony in marine growth among Atlantic salmon ( Salmo salar) populations
More synchronous growth was observed between close, than more distantly separated populations of Atlantic salmon ( Salmo salar ), during both the first and the second year at sea. The marine growth of seven Norwegian populations, located between 60°N and 70°N, were correlated with sea surface temper...
Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
---|---|
Main Authors: | , , , , , |
Other Authors: | |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Canadian Science Publishing
2011
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1139/f10-156 http://www.nrcresearchpress.com/doi/full-xml/10.1139/F10-156 http://www.nrcresearchpress.com/doi/pdf/10.1139/F10-156 |
id |
crcansciencepubl:10.1139/f10-156 |
---|---|
record_format |
openpolar |
spelling |
crcansciencepubl:10.1139/f10-156 2024-09-15T17:56:11+00:00 Synchrony in marine growth among Atlantic salmon ( Salmo salar) populations Jensen, Arne Johan Fiske, Peder Hansen, Lars Petter Johnsen, Bjørn Ove Mork, Kjell Arne Næsje, Tor Fredrik Trudel, Marc 2011 http://dx.doi.org/10.1139/f10-156 http://www.nrcresearchpress.com/doi/full-xml/10.1139/F10-156 http://www.nrcresearchpress.com/doi/pdf/10.1139/F10-156 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Fisheries and Aquatic Sciences volume 68, issue 3, page 444-457 ISSN 0706-652X 1205-7533 journal-article 2011 crcansciencepubl https://doi.org/10.1139/f10-156 2024-08-22T04:08:44Z More synchronous growth was observed between close, than more distantly separated populations of Atlantic salmon ( Salmo salar ), during both the first and the second year at sea. The marine growth of seven Norwegian populations, located between 60°N and 70°N, were correlated with sea surface temperatures (SSTs) in the Barents Sea, the Norwegian Sea, and the North Sea, and it was found that growth correlated best with the water temperatures in the area located closest to their home river. Growth was also compared with three broad-scale climate indices (North Atlantic Oscillation (NAO), Atlantic Multidecadal Oscillation, and subpolar gyre), with the strongest relationship occurring with the NAO index. However, SSTs explained more of the variability than the climatic indices did. Growth increment for the first year, but not the second year, was higher for southern than northern populations, mainly because of later smolt migration to sea in the north, and hence, a shorter growth season. For multi-sea-winter fish, all populations except one had a negative trend in growth with years for both the first and the second year at sea. For the second year at sea, this was most pronounced after the beginning of the 1980s. This is in accordance with the negative trend in pre-fishery abundance of adult salmon during the same period. Article in Journal/Newspaper Atlantic salmon Barents Sea North Atlantic North Atlantic oscillation Norwegian Sea Salmo salar Canadian Science Publishing Canadian Journal of Fisheries and Aquatic Sciences 68 3 444 457 |
institution |
Open Polar |
collection |
Canadian Science Publishing |
op_collection_id |
crcansciencepubl |
language |
English |
description |
More synchronous growth was observed between close, than more distantly separated populations of Atlantic salmon ( Salmo salar ), during both the first and the second year at sea. The marine growth of seven Norwegian populations, located between 60°N and 70°N, were correlated with sea surface temperatures (SSTs) in the Barents Sea, the Norwegian Sea, and the North Sea, and it was found that growth correlated best with the water temperatures in the area located closest to their home river. Growth was also compared with three broad-scale climate indices (North Atlantic Oscillation (NAO), Atlantic Multidecadal Oscillation, and subpolar gyre), with the strongest relationship occurring with the NAO index. However, SSTs explained more of the variability than the climatic indices did. Growth increment for the first year, but not the second year, was higher for southern than northern populations, mainly because of later smolt migration to sea in the north, and hence, a shorter growth season. For multi-sea-winter fish, all populations except one had a negative trend in growth with years for both the first and the second year at sea. For the second year at sea, this was most pronounced after the beginning of the 1980s. This is in accordance with the negative trend in pre-fishery abundance of adult salmon during the same period. |
author2 |
Trudel, Marc |
format |
Article in Journal/Newspaper |
author |
Jensen, Arne Johan Fiske, Peder Hansen, Lars Petter Johnsen, Bjørn Ove Mork, Kjell Arne Næsje, Tor Fredrik |
spellingShingle |
Jensen, Arne Johan Fiske, Peder Hansen, Lars Petter Johnsen, Bjørn Ove Mork, Kjell Arne Næsje, Tor Fredrik Synchrony in marine growth among Atlantic salmon ( Salmo salar) populations |
author_facet |
Jensen, Arne Johan Fiske, Peder Hansen, Lars Petter Johnsen, Bjørn Ove Mork, Kjell Arne Næsje, Tor Fredrik |
author_sort |
Jensen, Arne Johan |
title |
Synchrony in marine growth among Atlantic salmon ( Salmo salar) populations |
title_short |
Synchrony in marine growth among Atlantic salmon ( Salmo salar) populations |
title_full |
Synchrony in marine growth among Atlantic salmon ( Salmo salar) populations |
title_fullStr |
Synchrony in marine growth among Atlantic salmon ( Salmo salar) populations |
title_full_unstemmed |
Synchrony in marine growth among Atlantic salmon ( Salmo salar) populations |
title_sort |
synchrony in marine growth among atlantic salmon ( salmo salar) populations |
publisher |
Canadian Science Publishing |
publishDate |
2011 |
url |
http://dx.doi.org/10.1139/f10-156 http://www.nrcresearchpress.com/doi/full-xml/10.1139/F10-156 http://www.nrcresearchpress.com/doi/pdf/10.1139/F10-156 |
genre |
Atlantic salmon Barents Sea North Atlantic North Atlantic oscillation Norwegian Sea Salmo salar |
genre_facet |
Atlantic salmon Barents Sea North Atlantic North Atlantic oscillation Norwegian Sea Salmo salar |
op_source |
Canadian Journal of Fisheries and Aquatic Sciences volume 68, issue 3, page 444-457 ISSN 0706-652X 1205-7533 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/f10-156 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
container_volume |
68 |
container_issue |
3 |
container_start_page |
444 |
op_container_end_page |
457 |
_version_ |
1810432395818565632 |