Catch-and-release of Atlantic cod ( Gadus morhua ): post-release behaviour of acoustically pretagged fish in a natural marine environment
Studying the sublethal effects of catch-and-release (C&R) is challenging, as there are several potential sources of bias. For example, if behavioural alterations immediately after the release event are to be studied, separation of tagging effects from actual C&R effects is required, which is...
Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
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Natl Research Council Canada
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Online Access: | https://doi.org/10.1139/cjfas-2014-0290 http://ecite.utas.edu.au/96801 |
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ftunivtasecite:oai:ecite.utas.edu.au:96801 2023-05-15T15:27:16+02:00 Catch-and-release of Atlantic cod ( Gadus morhua ): post-release behaviour of acoustically pretagged fish in a natural marine environment Ferter, K Hartmann, K Kleiven, AR Moland, E Olsen, EM 2015 application/pdf https://doi.org/10.1139/cjfas-2014-0290 http://ecite.utas.edu.au/96801 en eng Natl Research Council Canada http://ecite.utas.edu.au/96801/1/Ferter et al 2015.pdf http://dx.doi.org/10.1139/cjfas-2014-0290 Ferter, K and Hartmann, K and Kleiven, AR and Moland, E and Olsen, EM, Catch-and-release of Atlantic cod ( Gadus morhua ): post-release behaviour of acoustically pretagged fish in a natural marine environment, Canadian Journal of Fisheries and Aquatic Sciences, 72, (2) pp. 252-261. ISSN 0706-652X (2015) [Refereed Article] http://ecite.utas.edu.au/96801 Agricultural and Veterinary Sciences Fisheries Sciences Fisheries Management Refereed Article PeerReviewed 2015 ftunivtasecite https://doi.org/10.1139/cjfas-2014-0290 2019-12-13T21:59:01Z Studying the sublethal effects of catch-and-release (C&R) is challenging, as there are several potential sources of bias. For example, if behavioural alterations immediately after the release event are to be studied, separation of tagging effects from actual C&R effects is required, which is a challenge in the wild, particularly in marine environments. To investigate the effects of C&R on Atlantic cod ( Gadus morhua ) in their natural environment, 80 cod were caught in fyke nets, fitted with acoustic transmitters, and released. After recovery from tagging and handling for at least 14 days, nine individuals were recaptured and released at least once during experimental angling, following best release practice. All cod survived the C&R event and did not show any large-scale behavioural changes (i.e., changes in diel vertical migrations). However, analysis of small-scale vertical movements showed that three individuals underwent short-term alterations (e.g., reduced or increased swimming activity). This study showed that pretagging fish with acoustic transmitters before experimental angling is an option when investigating fish behaviour immediately after the release event in marine environments. Moreover, release guidelines for cod should be developed, as cod can recover quickly if caught in shallow waters (<20 m) and properly handled and released. Article in Journal/Newspaper atlantic cod Gadus morhua eCite UTAS (University of Tasmania) Canadian Journal of Fisheries and Aquatic Sciences 72 2 252 261 |
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eCite UTAS (University of Tasmania) |
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ftunivtasecite |
language |
English |
topic |
Agricultural and Veterinary Sciences Fisheries Sciences Fisheries Management |
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Agricultural and Veterinary Sciences Fisheries Sciences Fisheries Management Ferter, K Hartmann, K Kleiven, AR Moland, E Olsen, EM Catch-and-release of Atlantic cod ( Gadus morhua ): post-release behaviour of acoustically pretagged fish in a natural marine environment |
topic_facet |
Agricultural and Veterinary Sciences Fisheries Sciences Fisheries Management |
description |
Studying the sublethal effects of catch-and-release (C&R) is challenging, as there are several potential sources of bias. For example, if behavioural alterations immediately after the release event are to be studied, separation of tagging effects from actual C&R effects is required, which is a challenge in the wild, particularly in marine environments. To investigate the effects of C&R on Atlantic cod ( Gadus morhua ) in their natural environment, 80 cod were caught in fyke nets, fitted with acoustic transmitters, and released. After recovery from tagging and handling for at least 14 days, nine individuals were recaptured and released at least once during experimental angling, following best release practice. All cod survived the C&R event and did not show any large-scale behavioural changes (i.e., changes in diel vertical migrations). However, analysis of small-scale vertical movements showed that three individuals underwent short-term alterations (e.g., reduced or increased swimming activity). This study showed that pretagging fish with acoustic transmitters before experimental angling is an option when investigating fish behaviour immediately after the release event in marine environments. Moreover, release guidelines for cod should be developed, as cod can recover quickly if caught in shallow waters (<20 m) and properly handled and released. |
format |
Article in Journal/Newspaper |
author |
Ferter, K Hartmann, K Kleiven, AR Moland, E Olsen, EM |
author_facet |
Ferter, K Hartmann, K Kleiven, AR Moland, E Olsen, EM |
author_sort |
Ferter, K |
title |
Catch-and-release of Atlantic cod ( Gadus morhua ): post-release behaviour of acoustically pretagged fish in a natural marine environment |
title_short |
Catch-and-release of Atlantic cod ( Gadus morhua ): post-release behaviour of acoustically pretagged fish in a natural marine environment |
title_full |
Catch-and-release of Atlantic cod ( Gadus morhua ): post-release behaviour of acoustically pretagged fish in a natural marine environment |
title_fullStr |
Catch-and-release of Atlantic cod ( Gadus morhua ): post-release behaviour of acoustically pretagged fish in a natural marine environment |
title_full_unstemmed |
Catch-and-release of Atlantic cod ( Gadus morhua ): post-release behaviour of acoustically pretagged fish in a natural marine environment |
title_sort |
catch-and-release of atlantic cod ( gadus morhua ): post-release behaviour of acoustically pretagged fish in a natural marine environment |
publisher |
Natl Research Council Canada |
publishDate |
2015 |
url |
https://doi.org/10.1139/cjfas-2014-0290 http://ecite.utas.edu.au/96801 |
genre |
atlantic cod Gadus morhua |
genre_facet |
atlantic cod Gadus morhua |
op_relation |
http://ecite.utas.edu.au/96801/1/Ferter et al 2015.pdf http://dx.doi.org/10.1139/cjfas-2014-0290 Ferter, K and Hartmann, K and Kleiven, AR and Moland, E and Olsen, EM, Catch-and-release of Atlantic cod ( Gadus morhua ): post-release behaviour of acoustically pretagged fish in a natural marine environment, Canadian Journal of Fisheries and Aquatic Sciences, 72, (2) pp. 252-261. ISSN 0706-652X (2015) [Refereed Article] http://ecite.utas.edu.au/96801 |
op_doi |
https://doi.org/10.1139/cjfas-2014-0290 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
container_volume |
72 |
container_issue |
2 |
container_start_page |
252 |
op_container_end_page |
261 |
_version_ |
1766357714667044864 |