The effect of catch-and-release angling at high water temperatures on behaviour and survival of Atlantic salmon Salmo salar during spawning migration
In this study, behaviour and survival following catch-and-release (C&R) angling was investigated in wild Atlantic salmon Salmo salar (n = 75) angled on sport fishing gear in the River Otra in southern Norway at water temperatures of 16⋅3–21⋅1∘ C. Salmo salar were tagged externally with radio tra...
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Online Access: | http://hdl.handle.net/11250/2480608 https://doi.org/10.1111/jfb.12722 |
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ftninstnf:oai:brage.nina.no:11250/2480608 2023-05-15T15:31:52+02:00 The effect of catch-and-release angling at high water temperatures on behaviour and survival of Atlantic salmon Salmo salar during spawning migration Havn, Torgeir Børresen Uglem, Ingebrigt Solem, Øyvind Cooke, Steven J. Whoriskey, Frederick G. Thorstad, Eva Bonsak 2015 application/octet-stream http://hdl.handle.net/11250/2480608 https://doi.org/10.1111/jfb.12722 eng eng Norges forskningsråd: 216416 Journal of Fish Biology. 2015, 87 (2), 342-359. urn:issn:0022-1112 http://hdl.handle.net/11250/2480608 https://doi.org/10.1111/jfb.12722 cristin:1259796 342-359 87 Journal of Fish Biology 2 VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480 Journal article Peer reviewed 2015 ftninstnf https://doi.org/10.1111/jfb.12722 2021-12-23T07:17:18Z In this study, behaviour and survival following catch-and-release (C&R) angling was investigated in wild Atlantic salmon Salmo salar (n = 75) angled on sport fishing gear in the River Otra in southern Norway at water temperatures of 16⋅3–21⋅1∘ C. Salmo salar were tagged externally with radio transmitters and immediately released back into the river to simulate a realistic C&R situation. The majority of S. salar (91%) survived C&R. Most S. salar that were present in the River Otra during the spawning period 3–4 months later were located at known spawning grounds. Downstream movements (median furthest position: 0⋅5 km, range: 0⋅1–11⋅0 km) during the first 4 days after release were recorded for 72% of S. salar, presumably stress-induced fallback associated with C&R. Individuals that fell back spent a median of 15 days before commencing their first upstream movement after release, and 34 days before they returned to or were located above their release site. Mortality appeared to be somewhat elevated at the higher end of the temperature range (14% at 18–21∘ C), although sample sizes were low. In conclusion, C&R at water temperatures up to 18∘ C had small behavioural consequences and was associated with low mortality (7%). Nevertheless, low levels of mortality occur due to C&R angling and these losses should be accounted for by management authorities in rivers where C&R is practised. Refinement of best practices for C&R may help to reduce mortality, particularly at warmer temperatures. biotelemetry; fisheries management; radio-telemetry; recreational fishing. acceptedVersion Article in Journal/Newspaper Atlantic salmon Salmo salar Norwegian Institute for Nature Research: Brage NINA Norway Journal of Fish Biology 87 2 342 359 |
institution |
Open Polar |
collection |
Norwegian Institute for Nature Research: Brage NINA |
op_collection_id |
ftninstnf |
language |
English |
topic |
VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480 |
spellingShingle |
VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480 Havn, Torgeir Børresen Uglem, Ingebrigt Solem, Øyvind Cooke, Steven J. Whoriskey, Frederick G. Thorstad, Eva Bonsak The effect of catch-and-release angling at high water temperatures on behaviour and survival of Atlantic salmon Salmo salar during spawning migration |
topic_facet |
VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480 |
description |
In this study, behaviour and survival following catch-and-release (C&R) angling was investigated in wild Atlantic salmon Salmo salar (n = 75) angled on sport fishing gear in the River Otra in southern Norway at water temperatures of 16⋅3–21⋅1∘ C. Salmo salar were tagged externally with radio transmitters and immediately released back into the river to simulate a realistic C&R situation. The majority of S. salar (91%) survived C&R. Most S. salar that were present in the River Otra during the spawning period 3–4 months later were located at known spawning grounds. Downstream movements (median furthest position: 0⋅5 km, range: 0⋅1–11⋅0 km) during the first 4 days after release were recorded for 72% of S. salar, presumably stress-induced fallback associated with C&R. Individuals that fell back spent a median of 15 days before commencing their first upstream movement after release, and 34 days before they returned to or were located above their release site. Mortality appeared to be somewhat elevated at the higher end of the temperature range (14% at 18–21∘ C), although sample sizes were low. In conclusion, C&R at water temperatures up to 18∘ C had small behavioural consequences and was associated with low mortality (7%). Nevertheless, low levels of mortality occur due to C&R angling and these losses should be accounted for by management authorities in rivers where C&R is practised. Refinement of best practices for C&R may help to reduce mortality, particularly at warmer temperatures. biotelemetry; fisheries management; radio-telemetry; recreational fishing. acceptedVersion |
format |
Article in Journal/Newspaper |
author |
Havn, Torgeir Børresen Uglem, Ingebrigt Solem, Øyvind Cooke, Steven J. Whoriskey, Frederick G. Thorstad, Eva Bonsak |
author_facet |
Havn, Torgeir Børresen Uglem, Ingebrigt Solem, Øyvind Cooke, Steven J. Whoriskey, Frederick G. Thorstad, Eva Bonsak |
author_sort |
Havn, Torgeir Børresen |
title |
The effect of catch-and-release angling at high water temperatures on behaviour and survival of Atlantic salmon Salmo salar during spawning migration |
title_short |
The effect of catch-and-release angling at high water temperatures on behaviour and survival of Atlantic salmon Salmo salar during spawning migration |
title_full |
The effect of catch-and-release angling at high water temperatures on behaviour and survival of Atlantic salmon Salmo salar during spawning migration |
title_fullStr |
The effect of catch-and-release angling at high water temperatures on behaviour and survival of Atlantic salmon Salmo salar during spawning migration |
title_full_unstemmed |
The effect of catch-and-release angling at high water temperatures on behaviour and survival of Atlantic salmon Salmo salar during spawning migration |
title_sort |
effect of catch-and-release angling at high water temperatures on behaviour and survival of atlantic salmon salmo salar during spawning migration |
publishDate |
2015 |
url |
http://hdl.handle.net/11250/2480608 https://doi.org/10.1111/jfb.12722 |
geographic |
Norway |
geographic_facet |
Norway |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
342-359 87 Journal of Fish Biology 2 |
op_relation |
Norges forskningsråd: 216416 Journal of Fish Biology. 2015, 87 (2), 342-359. urn:issn:0022-1112 http://hdl.handle.net/11250/2480608 https://doi.org/10.1111/jfb.12722 cristin:1259796 |
op_doi |
https://doi.org/10.1111/jfb.12722 |
container_title |
Journal of Fish Biology |
container_volume |
87 |
container_issue |
2 |
container_start_page |
342 |
op_container_end_page |
359 |
_version_ |
1766362368316538880 |