The risk of individual fish being captured multiple times in a catch and release fishery
Abstract The proportion of angled Atlantic salmon Salmo salar L. being caught and released has increased. If individuals are repeatedly captured, this may have fish welfare consequences. Of 995 Atlantic salmon tagged during catch and release in eight Norwegian rivers, 10% were captured twice, while...
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crwiley:10.1111/fme.12407 2024-06-02T08:03:30+00:00 The risk of individual fish being captured multiple times in a catch and release fishery Thorstad, Eva B. Diserud, Ola H. Solem, Øyvind Havn, Torgeir B. Bjørum, Lars Oftedal Kristensen, Torstein Urke, Henning Andre Johansen, Martin R. Lennox, Robert J. Fiske, Peder Uglem, Ingebrigt Norges Forskningsråd 2019 http://dx.doi.org/10.1111/fme.12407 https://onlinelibrary.wiley.com/doi/pdf/10.1111/fme.12407 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/fme.12407 en eng Wiley http://creativecommons.org/licenses/by-nc-nd/4.0/ Fisheries Management and Ecology volume 27, issue 3, page 248-257 ISSN 0969-997X 1365-2400 journal-article 2019 crwiley https://doi.org/10.1111/fme.12407 2024-05-03T11:45:17Z Abstract The proportion of angled Atlantic salmon Salmo salar L. being caught and released has increased. If individuals are repeatedly captured, this may have fish welfare consequences. Of 995 Atlantic salmon tagged during catch and release in eight Norwegian rivers, 10% were captured twice, while 3% were captured three times within the same fishing season. The probability that released salmon were captured again decreased with decreasing time left of the fishing season, decreased for larger‐sized fish and varied among rivers/years. Increased exploitation rates within the river, indicating an increased fishing pressure, strongly increased the probability that fish would be recaptured. However, the proportion of salmon caught a second time was much lower than the total exploitation rates in the same rivers (which was on average 46%). For fish tagged in the sea, the likelihood of being angled decreased with time since entering the river, which may explain why the recapture rates of caught and released fish were lower than the total exploitation rates. Article in Journal/Newspaper Atlantic salmon Salmo salar Wiley Online Library Fisheries Management and Ecology 27 3 248 257 |
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English |
description |
Abstract The proportion of angled Atlantic salmon Salmo salar L. being caught and released has increased. If individuals are repeatedly captured, this may have fish welfare consequences. Of 995 Atlantic salmon tagged during catch and release in eight Norwegian rivers, 10% were captured twice, while 3% were captured three times within the same fishing season. The probability that released salmon were captured again decreased with decreasing time left of the fishing season, decreased for larger‐sized fish and varied among rivers/years. Increased exploitation rates within the river, indicating an increased fishing pressure, strongly increased the probability that fish would be recaptured. However, the proportion of salmon caught a second time was much lower than the total exploitation rates in the same rivers (which was on average 46%). For fish tagged in the sea, the likelihood of being angled decreased with time since entering the river, which may explain why the recapture rates of caught and released fish were lower than the total exploitation rates. |
author2 |
Norges Forskningsråd |
format |
Article in Journal/Newspaper |
author |
Thorstad, Eva B. Diserud, Ola H. Solem, Øyvind Havn, Torgeir B. Bjørum, Lars Oftedal Kristensen, Torstein Urke, Henning Andre Johansen, Martin R. Lennox, Robert J. Fiske, Peder Uglem, Ingebrigt |
spellingShingle |
Thorstad, Eva B. Diserud, Ola H. Solem, Øyvind Havn, Torgeir B. Bjørum, Lars Oftedal Kristensen, Torstein Urke, Henning Andre Johansen, Martin R. Lennox, Robert J. Fiske, Peder Uglem, Ingebrigt The risk of individual fish being captured multiple times in a catch and release fishery |
author_facet |
Thorstad, Eva B. Diserud, Ola H. Solem, Øyvind Havn, Torgeir B. Bjørum, Lars Oftedal Kristensen, Torstein Urke, Henning Andre Johansen, Martin R. Lennox, Robert J. Fiske, Peder Uglem, Ingebrigt |
author_sort |
Thorstad, Eva B. |
title |
The risk of individual fish being captured multiple times in a catch and release fishery |
title_short |
The risk of individual fish being captured multiple times in a catch and release fishery |
title_full |
The risk of individual fish being captured multiple times in a catch and release fishery |
title_fullStr |
The risk of individual fish being captured multiple times in a catch and release fishery |
title_full_unstemmed |
The risk of individual fish being captured multiple times in a catch and release fishery |
title_sort |
risk of individual fish being captured multiple times in a catch and release fishery |
publisher |
Wiley |
publishDate |
2019 |
url |
http://dx.doi.org/10.1111/fme.12407 https://onlinelibrary.wiley.com/doi/pdf/10.1111/fme.12407 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/fme.12407 |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
Fisheries Management and Ecology volume 27, issue 3, page 248-257 ISSN 0969-997X 1365-2400 |
op_rights |
http://creativecommons.org/licenses/by-nc-nd/4.0/ |
op_doi |
https://doi.org/10.1111/fme.12407 |
container_title |
Fisheries Management and Ecology |
container_volume |
27 |
container_issue |
3 |
container_start_page |
248 |
op_container_end_page |
257 |
_version_ |
1800748046202437632 |