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 tr...
Published in: | Journal of Fish Biology |
---|---|
Main Authors: | , , , , , |
Other Authors: | |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
2015
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1111/jfb.12722 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fjfb.12722 https://onlinelibrary.wiley.com/doi/pdf/10.1111/jfb.12722 |
id |
crwiley:10.1111/jfb.12722 |
---|---|
record_format |
openpolar |
spelling |
crwiley:10.1111/jfb.12722 2024-09-15T17:56:18+00:00 The effect of catch‐and‐release angling at high water temperatures on behaviour and survival of Atlantic salmon Salmo salar during spawning migration Havn, T. B. Uglem, I. Solem, Ø. Cooke, S. J. Whoriskey, F. G. Thorstad, E. B. Research Council of Norway 2015 http://dx.doi.org/10.1111/jfb.12722 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fjfb.12722 https://onlinelibrary.wiley.com/doi/pdf/10.1111/jfb.12722 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Fish Biology volume 87, issue 2, page 342-359 ISSN 0022-1112 1095-8649 journal-article 2015 crwiley https://doi.org/10.1111/jfb.12722 2024-07-18T04:23:10Z 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. Article in Journal/Newspaper Atlantic salmon Salmo salar Wiley Online Library Journal of Fish Biology 87 2 342 359 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
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. |
author2 |
Research Council of Norway |
format |
Article in Journal/Newspaper |
author |
Havn, T. B. Uglem, I. Solem, Ø. Cooke, S. J. Whoriskey, F. G. Thorstad, E. B. |
spellingShingle |
Havn, T. B. Uglem, I. Solem, Ø. Cooke, S. J. Whoriskey, F. G. Thorstad, E. B. The effect of catch‐and‐release angling at high water temperatures on behaviour and survival of Atlantic salmon Salmo salar during spawning migration |
author_facet |
Havn, T. B. Uglem, I. Solem, Ø. Cooke, S. J. Whoriskey, F. G. Thorstad, E. B. |
author_sort |
Havn, T. B. |
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 |
publisher |
Wiley |
publishDate |
2015 |
url |
http://dx.doi.org/10.1111/jfb.12722 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fjfb.12722 https://onlinelibrary.wiley.com/doi/pdf/10.1111/jfb.12722 |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
Journal of Fish Biology volume 87, issue 2, page 342-359 ISSN 0022-1112 1095-8649 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
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_ |
1810432508318187520 |