Homing behaviour of Atlantic salmon (Salmo salar) during final phase of marine migration and river entry
Little is known about Atlantic salmon behaviour during the last phase of the marine homing migration and subsequent river entry. In this study, 56 adult Atlantic salmon in the Alta Fjord in northern Norway were equipped with acoustic transmitters. Salmon generally followed the coastline, but their h...
Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
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Format: | Article in Journal/Newspaper |
Language: | English |
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Online Access: | https://hdl.handle.net/10037/5611 https://doi.org/10.1139/cjfas-2012-0352 |
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ftunivtroemsoe:oai:munin.uit.no:10037/5611 2023-05-15T15:30:28+02:00 Homing behaviour of Atlantic salmon (Salmo salar) during final phase of marine migration and river entry Davidsen, Jan Grimsrud Rikardsen, Audun H. Thorstad, Eva Bonsak Halttunen, Elina Mitamura, Hiromichi Præbel, Kim Skardhamar, Jofrid Næsje, Tor 2013 https://hdl.handle.net/10037/5611 https://doi.org/10.1139/cjfas-2012-0352 eng eng NRC Research Press Canadian Journal of Fisheries and Aquatic Sciences 70(2013) nr. 5 s. 794-802 FRIDAID 981364 http://dx.doi.org/10.1139/cjfas-2012-0352 0706-652X https://hdl.handle.net/10037/5611 URN:NBN:no-uit_munin_5301 openAccess VDP::Mathematics and natural science: 400::Zoology and botany: 480::Limnology: 498 VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Limnologi: 498 Journal article Tidsskriftartikkel Peer reviewed 2013 ftunivtroemsoe https://doi.org/10.1139/cjfas-2012-0352 2021-06-25T17:53:37Z Little is known about Atlantic salmon behaviour during the last phase of the marine homing migration and subsequent river entry. In this study, 56 adult Atlantic salmon in the Alta Fjord in northern Norway were equipped with acoustic transmitters. Salmon generally followed the coastline, but their horizontal distribution was also affected by wind-induced spreading of river water across the fjord. Mean swimming depth was shallow (2.5–0.5 m), but with dives down to 30 m depth. Timing of river entry was not affected by river flow, diel periodicity, or tidal cycles. Movements during the last part of the marine migration and river entry were unidirectional and relatively fast (mean 9.7 km·day−1). However, migratory speed slowed as salmon approached the estuary, with a significantly lower speed in the innermost part of the estuary than in the open fjord. Migration behaviour seemed not to be affected by handling and tagging, as there were no behavioural differences between newly tagged fish and those captured and tagged 1 year before their homing migration. Article in Journal/Newspaper Atlantic salmon Northern Norway Salmo salar University of Tromsø: Munin Open Research Archive Alta Norway Canadian Journal of Fisheries and Aquatic Sciences 70 5 794 802 |
institution |
Open Polar |
collection |
University of Tromsø: Munin Open Research Archive |
op_collection_id |
ftunivtroemsoe |
language |
English |
topic |
VDP::Mathematics and natural science: 400::Zoology and botany: 480::Limnology: 498 VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Limnologi: 498 |
spellingShingle |
VDP::Mathematics and natural science: 400::Zoology and botany: 480::Limnology: 498 VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Limnologi: 498 Davidsen, Jan Grimsrud Rikardsen, Audun H. Thorstad, Eva Bonsak Halttunen, Elina Mitamura, Hiromichi Præbel, Kim Skardhamar, Jofrid Næsje, Tor Homing behaviour of Atlantic salmon (Salmo salar) during final phase of marine migration and river entry |
topic_facet |
VDP::Mathematics and natural science: 400::Zoology and botany: 480::Limnology: 498 VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Limnologi: 498 |
description |
Little is known about Atlantic salmon behaviour during the last phase of the marine homing migration and subsequent river entry. In this study, 56 adult Atlantic salmon in the Alta Fjord in northern Norway were equipped with acoustic transmitters. Salmon generally followed the coastline, but their horizontal distribution was also affected by wind-induced spreading of river water across the fjord. Mean swimming depth was shallow (2.5–0.5 m), but with dives down to 30 m depth. Timing of river entry was not affected by river flow, diel periodicity, or tidal cycles. Movements during the last part of the marine migration and river entry were unidirectional and relatively fast (mean 9.7 km·day−1). However, migratory speed slowed as salmon approached the estuary, with a significantly lower speed in the innermost part of the estuary than in the open fjord. Migration behaviour seemed not to be affected by handling and tagging, as there were no behavioural differences between newly tagged fish and those captured and tagged 1 year before their homing migration. |
format |
Article in Journal/Newspaper |
author |
Davidsen, Jan Grimsrud Rikardsen, Audun H. Thorstad, Eva Bonsak Halttunen, Elina Mitamura, Hiromichi Præbel, Kim Skardhamar, Jofrid Næsje, Tor |
author_facet |
Davidsen, Jan Grimsrud Rikardsen, Audun H. Thorstad, Eva Bonsak Halttunen, Elina Mitamura, Hiromichi Præbel, Kim Skardhamar, Jofrid Næsje, Tor |
author_sort |
Davidsen, Jan Grimsrud |
title |
Homing behaviour of Atlantic salmon (Salmo salar) during final phase of marine migration and river entry |
title_short |
Homing behaviour of Atlantic salmon (Salmo salar) during final phase of marine migration and river entry |
title_full |
Homing behaviour of Atlantic salmon (Salmo salar) during final phase of marine migration and river entry |
title_fullStr |
Homing behaviour of Atlantic salmon (Salmo salar) during final phase of marine migration and river entry |
title_full_unstemmed |
Homing behaviour of Atlantic salmon (Salmo salar) during final phase of marine migration and river entry |
title_sort |
homing behaviour of atlantic salmon (salmo salar) during final phase of marine migration and river entry |
publisher |
NRC Research Press |
publishDate |
2013 |
url |
https://hdl.handle.net/10037/5611 https://doi.org/10.1139/cjfas-2012-0352 |
geographic |
Alta Norway |
geographic_facet |
Alta Norway |
genre |
Atlantic salmon Northern Norway Salmo salar |
genre_facet |
Atlantic salmon Northern Norway Salmo salar |
op_relation |
Canadian Journal of Fisheries and Aquatic Sciences 70(2013) nr. 5 s. 794-802 FRIDAID 981364 http://dx.doi.org/10.1139/cjfas-2012-0352 0706-652X https://hdl.handle.net/10037/5611 URN:NBN:no-uit_munin_5301 |
op_rights |
openAccess |
op_doi |
https://doi.org/10.1139/cjfas-2012-0352 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
container_volume |
70 |
container_issue |
5 |
container_start_page |
794 |
op_container_end_page |
802 |
_version_ |
1766360922065993728 |