Keeping close to the river, shore and surface: the first marine migration of brown trout (Salmo trutta) and Arctic charr (Salvelinus alpinus) post-smolts
Acoustic telemetry was utilized to track 49 brown trout ( Salmo trutta ) and 37 Arctic charr ( Salvelinus alpinus ) first-time migrants of wild origin [post-smolts; mean LF (fork length): 169 and 172 mm] in a large fjord in northern Norway. The S. trutta were registered at sea for more than twice th...
Published in: | Journal of Fish Biology |
---|---|
Main Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
2021
|
Subjects: | |
Online Access: | https://hdl.handle.net/10037/21709 https://doi.org/10.1111/jfb.14737 |
id |
ftunivtroemsoe:oai:munin.uit.no:10037/21709 |
---|---|
record_format |
openpolar |
spelling |
ftunivtroemsoe:oai:munin.uit.no:10037/21709 2023-05-15T14:26:06+02:00 Keeping close to the river, shore and surface: the first marine migration of brown trout (Salmo trutta) and Arctic charr (Salvelinus alpinus) post-smolts Atencio, Benjamin J. Thorstad, Eva Bonsak Rikardsen, Audun H. Jensen, Jenny Lovisa Alexandra 2021-03-23 https://hdl.handle.net/10037/21709 https://doi.org/10.1111/jfb.14737 eng eng Wiley Journal of Fish Biology Atencio, Thorstad EB, Rikardsen A, Jensen J.L.A. Keeping close to the river, shore and surface: the first marine migration of brown trout (Salmo trutta) and Arctic charr (Salvelinus alpinus) post-smolts. Journal of Fish Biology. 2021 FRIDAID 1907945 doi:10.1111/jfb.14737 0022-1112 1095-8649 https://hdl.handle.net/10037/21709 openAccess Copyright 2021 The Author(s) VDP::Mathematics and natural science: 400::Zoology and botany: 480::Marine biology: 497 VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Marinbiologi: 497 anadromous charr fjord marine migration post-smolt salmonid trout Journal article Tidsskriftartikkel Peer reviewed publishedVersion 2021 ftunivtroemsoe https://doi.org/10.1111/jfb.14737 2021-07-07T22:52:36Z Acoustic telemetry was utilized to track 49 brown trout ( Salmo trutta ) and 37 Arctic charr ( Salvelinus alpinus ) first-time migrants of wild origin [post-smolts; mean LF (fork length): 169 and 172 mm] in a large fjord in northern Norway. The S. trutta were registered at sea for more than twice the time of the S. alpinus (medians of 54 and 22 days, respectively). Both species were mostly detected near river mouths (>80% of detections) and almost exclusively spent their time (>95%) within the interior 18 km of the fjord. They were surface oriented, with most detections at <1 m depth and S. trutta deeper on average (median mean depths of 0.7 and 0.5 m, respectively). This study concludes that post-smolts of both species stay closer to the surface and to river mouths than larger veteran migrants. This study emphasizes the importance of river mouths and upper water layers for the survival of both species during their first marine migration. Article in Journal/Newspaper Arctic Arctic charr Arctic Northern Norway Salvelinus alpinus University of Tromsø: Munin Open Research Archive Arctic Norway Journal of Fish Biology |
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::Marine biology: 497 VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Marinbiologi: 497 anadromous charr fjord marine migration post-smolt salmonid trout |
spellingShingle |
VDP::Mathematics and natural science: 400::Zoology and botany: 480::Marine biology: 497 VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Marinbiologi: 497 anadromous charr fjord marine migration post-smolt salmonid trout Atencio, Benjamin J. Thorstad, Eva Bonsak Rikardsen, Audun H. Jensen, Jenny Lovisa Alexandra Keeping close to the river, shore and surface: the first marine migration of brown trout (Salmo trutta) and Arctic charr (Salvelinus alpinus) post-smolts |
topic_facet |
VDP::Mathematics and natural science: 400::Zoology and botany: 480::Marine biology: 497 VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Marinbiologi: 497 anadromous charr fjord marine migration post-smolt salmonid trout |
description |
Acoustic telemetry was utilized to track 49 brown trout ( Salmo trutta ) and 37 Arctic charr ( Salvelinus alpinus ) first-time migrants of wild origin [post-smolts; mean LF (fork length): 169 and 172 mm] in a large fjord in northern Norway. The S. trutta were registered at sea for more than twice the time of the S. alpinus (medians of 54 and 22 days, respectively). Both species were mostly detected near river mouths (>80% of detections) and almost exclusively spent their time (>95%) within the interior 18 km of the fjord. They were surface oriented, with most detections at <1 m depth and S. trutta deeper on average (median mean depths of 0.7 and 0.5 m, respectively). This study concludes that post-smolts of both species stay closer to the surface and to river mouths than larger veteran migrants. This study emphasizes the importance of river mouths and upper water layers for the survival of both species during their first marine migration. |
format |
Article in Journal/Newspaper |
author |
Atencio, Benjamin J. Thorstad, Eva Bonsak Rikardsen, Audun H. Jensen, Jenny Lovisa Alexandra |
author_facet |
Atencio, Benjamin J. Thorstad, Eva Bonsak Rikardsen, Audun H. Jensen, Jenny Lovisa Alexandra |
author_sort |
Atencio, Benjamin J. |
title |
Keeping close to the river, shore and surface: the first marine migration of brown trout (Salmo trutta) and Arctic charr (Salvelinus alpinus) post-smolts |
title_short |
Keeping close to the river, shore and surface: the first marine migration of brown trout (Salmo trutta) and Arctic charr (Salvelinus alpinus) post-smolts |
title_full |
Keeping close to the river, shore and surface: the first marine migration of brown trout (Salmo trutta) and Arctic charr (Salvelinus alpinus) post-smolts |
title_fullStr |
Keeping close to the river, shore and surface: the first marine migration of brown trout (Salmo trutta) and Arctic charr (Salvelinus alpinus) post-smolts |
title_full_unstemmed |
Keeping close to the river, shore and surface: the first marine migration of brown trout (Salmo trutta) and Arctic charr (Salvelinus alpinus) post-smolts |
title_sort |
keeping close to the river, shore and surface: the first marine migration of brown trout (salmo trutta) and arctic charr (salvelinus alpinus) post-smolts |
publisher |
Wiley |
publishDate |
2021 |
url |
https://hdl.handle.net/10037/21709 https://doi.org/10.1111/jfb.14737 |
geographic |
Arctic Norway |
geographic_facet |
Arctic Norway |
genre |
Arctic Arctic charr Arctic Northern Norway Salvelinus alpinus |
genre_facet |
Arctic Arctic charr Arctic Northern Norway Salvelinus alpinus |
op_relation |
Journal of Fish Biology Atencio, Thorstad EB, Rikardsen A, Jensen J.L.A. Keeping close to the river, shore and surface: the first marine migration of brown trout (Salmo trutta) and Arctic charr (Salvelinus alpinus) post-smolts. Journal of Fish Biology. 2021 FRIDAID 1907945 doi:10.1111/jfb.14737 0022-1112 1095-8649 https://hdl.handle.net/10037/21709 |
op_rights |
openAccess Copyright 2021 The Author(s) |
op_doi |
https://doi.org/10.1111/jfb.14737 |
container_title |
Journal of Fish Biology |
_version_ |
1766298581033025536 |