Catchability of Atlantic salmon at high water temperatures: Implications for river closure temperature thresholds to catch and release angling
Abstract Warming water temperatures, combined with increased mortality following catch and release, could have synergistic consequences if rivers remain open to catch and release at high water temperatures, and catchability of fish remains similar across water temperatures. Here archived data for At...
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crwiley:10.1111/fme.12464 2024-06-02T08:03:22+00:00 Catchability of Atlantic salmon at high water temperatures: Implications for river closure temperature thresholds to catch and release angling Van Leeuwen, Travis E. Dempson, Brian Cote, David Kelly, Nicholas I. Bates, Amanda E. 2020 http://dx.doi.org/10.1111/fme.12464 https://onlinelibrary.wiley.com/doi/pdf/10.1111/fme.12464 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/fme.12464 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Fisheries Management and Ecology volume 28, issue 2, page 147-157 ISSN 0969-997X 1365-2400 journal-article 2020 crwiley https://doi.org/10.1111/fme.12464 2024-05-03T11:08:02Z Abstract Warming water temperatures, combined with increased mortality following catch and release, could have synergistic consequences if rivers remain open to catch and release at high water temperatures, and catchability of fish remains similar across water temperatures. Here archived data for Atlantic salmon, Salmo salar L., were used to (a) quantify the influence of water temperature on catchability and (b) refine estimates of absolute catch and release mortality to incorporate the relationship between temperature and catchability. A significant decline in the number of Atlantic salmon caught at warmer water temperatures was found after accounting for the effects of river water height, fishing effort, run duration and year‐to‐year differences in fish abundance. Overall, absolute catch and release mortalities were predicted to be infrequent at cool river temperatures. At river temperatures sometimes associated with fishing closures, mortality due to the catch and release ranged from 6% to 14%. Although post‐release mortality increases with water temperature, it is somewhat compensated by the reduced catchability of Atlantic salmon. Thus, the catchability component of catch and release is an integral consideration when evaluating the effectiveness of river closure temperature thresholds when managing catch and release angling. Article in Journal/Newspaper Atlantic salmon Salmo salar Wiley Online Library Fisheries Management and Ecology 28 2 147 157 |
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Wiley Online Library |
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Abstract Warming water temperatures, combined with increased mortality following catch and release, could have synergistic consequences if rivers remain open to catch and release at high water temperatures, and catchability of fish remains similar across water temperatures. Here archived data for Atlantic salmon, Salmo salar L., were used to (a) quantify the influence of water temperature on catchability and (b) refine estimates of absolute catch and release mortality to incorporate the relationship between temperature and catchability. A significant decline in the number of Atlantic salmon caught at warmer water temperatures was found after accounting for the effects of river water height, fishing effort, run duration and year‐to‐year differences in fish abundance. Overall, absolute catch and release mortalities were predicted to be infrequent at cool river temperatures. At river temperatures sometimes associated with fishing closures, mortality due to the catch and release ranged from 6% to 14%. Although post‐release mortality increases with water temperature, it is somewhat compensated by the reduced catchability of Atlantic salmon. Thus, the catchability component of catch and release is an integral consideration when evaluating the effectiveness of river closure temperature thresholds when managing catch and release angling. |
format |
Article in Journal/Newspaper |
author |
Van Leeuwen, Travis E. Dempson, Brian Cote, David Kelly, Nicholas I. Bates, Amanda E. |
spellingShingle |
Van Leeuwen, Travis E. Dempson, Brian Cote, David Kelly, Nicholas I. Bates, Amanda E. Catchability of Atlantic salmon at high water temperatures: Implications for river closure temperature thresholds to catch and release angling |
author_facet |
Van Leeuwen, Travis E. Dempson, Brian Cote, David Kelly, Nicholas I. Bates, Amanda E. |
author_sort |
Van Leeuwen, Travis E. |
title |
Catchability of Atlantic salmon at high water temperatures: Implications for river closure temperature thresholds to catch and release angling |
title_short |
Catchability of Atlantic salmon at high water temperatures: Implications for river closure temperature thresholds to catch and release angling |
title_full |
Catchability of Atlantic salmon at high water temperatures: Implications for river closure temperature thresholds to catch and release angling |
title_fullStr |
Catchability of Atlantic salmon at high water temperatures: Implications for river closure temperature thresholds to catch and release angling |
title_full_unstemmed |
Catchability of Atlantic salmon at high water temperatures: Implications for river closure temperature thresholds to catch and release angling |
title_sort |
catchability of atlantic salmon at high water temperatures: implications for river closure temperature thresholds to catch and release angling |
publisher |
Wiley |
publishDate |
2020 |
url |
http://dx.doi.org/10.1111/fme.12464 https://onlinelibrary.wiley.com/doi/pdf/10.1111/fme.12464 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/fme.12464 |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
Fisheries Management and Ecology volume 28, issue 2, page 147-157 ISSN 0969-997X 1365-2400 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/fme.12464 |
container_title |
Fisheries Management and Ecology |
container_volume |
28 |
container_issue |
2 |
container_start_page |
147 |
op_container_end_page |
157 |
_version_ |
1800747882548035584 |