Will you swim into my parlour? In situobservations of Atlantic cod ( Gadus morhua) interactions with baited pots, with implications for gear design
Pots (also known as traps) are baited fishing gears widely used in commercial fisheries, and are being considered as a tool for harvesting Atlantic cod ( Gadus morhua ) in Newfoundland and Labrador, Canada. Pots produce lower environmental impacts than many other fishing gears, but they will only be...
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crpeerj:10.7717/peerj.2953 2024-06-02T08:03:10+00:00 Will you swim into my parlour? In situobservations of Atlantic cod ( Gadus morhua) interactions with baited pots, with implications for gear design Meintzer, Phillip Walsh, Philip Favaro, Brett Canadian Centre for Fisheries Innovation Research and Development Corporation of Newfoundland and Labrador’s Ignite program Ocean Industry Student Research Award Fisheries and Oceans Canada Marine Environmental Observation Prediction and Response (MEOPAR) Early Career Faculty Research Award Liber Ero Fellowship 2017 http://dx.doi.org/10.7717/peerj.2953 https://peerj.com/articles/2953.pdf https://peerj.com/articles/2953.xml https://peerj.com/articles/2953.html en eng PeerJ http://creativecommons.org/licenses/by/4.0/ PeerJ volume 5, page e2953 ISSN 2167-8359 journal-article 2017 crpeerj https://doi.org/10.7717/peerj.2953 2024-05-07T14:14:02Z Pots (also known as traps) are baited fishing gears widely used in commercial fisheries, and are being considered as a tool for harvesting Atlantic cod ( Gadus morhua ) in Newfoundland and Labrador, Canada. Pots produce lower environmental impacts than many other fishing gears, but they will only be a viable fishing strategy if they are efficient and selective at catching their target species. To study the behaviour of cod in and around pots, and how those behaviours affect pot efficiency, we used long-duration underwater video cameras to assess two models of cod pot deployed in the nearshore waters of Fogo Island, NL. We examined the number of cod that approached the pot, the number and proportion that successfully completed entries into the pot openings, and the number that exited, and related these factors to the direction of water movement. We observed very few entry attempts relative to the number of approaches by cod, and only 22% of all entry attempts were successful. We observed that 50% of approaches, 70% of entry attempts, and 73% of successful entrances occurred against the current, and 25% of cod were able to exit the pot following capture. Based on our observations, we suggest that future cod pots should have a greater number of entrances, or a mechanism to ensure that entrances rotate in line with the current, in order to maximize their catch efficiency for cod. Article in Journal/Newspaper atlantic cod Gadus morhua Newfoundland PeerJ Publishing Canada Fogo ENVELOPE(-54.281,-54.281,49.717,49.717) Fogo Island ENVELOPE(-54.165,-54.165,49.667,49.667) Newfoundland PeerJ 5 e2953 |
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Open Polar |
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PeerJ Publishing |
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English |
description |
Pots (also known as traps) are baited fishing gears widely used in commercial fisheries, and are being considered as a tool for harvesting Atlantic cod ( Gadus morhua ) in Newfoundland and Labrador, Canada. Pots produce lower environmental impacts than many other fishing gears, but they will only be a viable fishing strategy if they are efficient and selective at catching their target species. To study the behaviour of cod in and around pots, and how those behaviours affect pot efficiency, we used long-duration underwater video cameras to assess two models of cod pot deployed in the nearshore waters of Fogo Island, NL. We examined the number of cod that approached the pot, the number and proportion that successfully completed entries into the pot openings, and the number that exited, and related these factors to the direction of water movement. We observed very few entry attempts relative to the number of approaches by cod, and only 22% of all entry attempts were successful. We observed that 50% of approaches, 70% of entry attempts, and 73% of successful entrances occurred against the current, and 25% of cod were able to exit the pot following capture. Based on our observations, we suggest that future cod pots should have a greater number of entrances, or a mechanism to ensure that entrances rotate in line with the current, in order to maximize their catch efficiency for cod. |
author2 |
Canadian Centre for Fisheries Innovation Research and Development Corporation of Newfoundland and Labrador’s Ignite program Ocean Industry Student Research Award Fisheries and Oceans Canada Marine Environmental Observation Prediction and Response (MEOPAR) Early Career Faculty Research Award Liber Ero Fellowship |
format |
Article in Journal/Newspaper |
author |
Meintzer, Phillip Walsh, Philip Favaro, Brett |
spellingShingle |
Meintzer, Phillip Walsh, Philip Favaro, Brett Will you swim into my parlour? In situobservations of Atlantic cod ( Gadus morhua) interactions with baited pots, with implications for gear design |
author_facet |
Meintzer, Phillip Walsh, Philip Favaro, Brett |
author_sort |
Meintzer, Phillip |
title |
Will you swim into my parlour? In situobservations of Atlantic cod ( Gadus morhua) interactions with baited pots, with implications for gear design |
title_short |
Will you swim into my parlour? In situobservations of Atlantic cod ( Gadus morhua) interactions with baited pots, with implications for gear design |
title_full |
Will you swim into my parlour? In situobservations of Atlantic cod ( Gadus morhua) interactions with baited pots, with implications for gear design |
title_fullStr |
Will you swim into my parlour? In situobservations of Atlantic cod ( Gadus morhua) interactions with baited pots, with implications for gear design |
title_full_unstemmed |
Will you swim into my parlour? In situobservations of Atlantic cod ( Gadus morhua) interactions with baited pots, with implications for gear design |
title_sort |
will you swim into my parlour? in situobservations of atlantic cod ( gadus morhua) interactions with baited pots, with implications for gear design |
publisher |
PeerJ |
publishDate |
2017 |
url |
http://dx.doi.org/10.7717/peerj.2953 https://peerj.com/articles/2953.pdf https://peerj.com/articles/2953.xml https://peerj.com/articles/2953.html |
long_lat |
ENVELOPE(-54.281,-54.281,49.717,49.717) ENVELOPE(-54.165,-54.165,49.667,49.667) |
geographic |
Canada Fogo Fogo Island Newfoundland |
geographic_facet |
Canada Fogo Fogo Island Newfoundland |
genre |
atlantic cod Gadus morhua Newfoundland |
genre_facet |
atlantic cod Gadus morhua Newfoundland |
op_source |
PeerJ volume 5, page e2953 ISSN 2167-8359 |
op_rights |
http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.7717/peerj.2953 |
container_title |
PeerJ |
container_volume |
5 |
container_start_page |
e2953 |
_version_ |
1800747639310909440 |