Will you swim into my parlour? In situ observations 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 a...
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ftpubmed:oai:pubmedcentral.nih.gov:5301977 2023-05-15T15:27:18+02:00 Will you swim into my parlour? In situ observations of Atlantic cod (Gadus morhua) interactions with baited pots, with implications for gear design Meintzer, Phillip Walsh, Philip Favaro, Brett 2017-02-08 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5301977/ http://www.ncbi.nlm.nih.gov/pubmed/28194312 https://doi.org/10.7717/peerj.2953 en eng PeerJ Inc. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5301977/ http://www.ncbi.nlm.nih.gov/pubmed/28194312 http://dx.doi.org/10.7717/peerj.2953 ©2017 Meintzer et al. http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, reproduction and adaptation in any medium and for any purpose provided that it is properly attributed. For attribution, the original author(s), title, publication source (PeerJ) and either DOI or URL of the article must be cited. CC-BY Aquaculture Fisheries and Fish Science Text 2017 ftpubmed https://doi.org/10.7717/peerj.2953 2017-02-19T01:10:23Z 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. Text atlantic cod Gadus morhua Newfoundland PubMed Central (PMC) 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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ftpubmed |
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English |
topic |
Aquaculture Fisheries and Fish Science |
spellingShingle |
Aquaculture Fisheries and Fish Science Meintzer, Phillip Walsh, Philip Favaro, Brett Will you swim into my parlour? In situ observations of Atlantic cod (Gadus morhua) interactions with baited pots, with implications for gear design |
topic_facet |
Aquaculture Fisheries and Fish Science |
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. |
format |
Text |
author |
Meintzer, Phillip Walsh, Philip Favaro, Brett |
author_facet |
Meintzer, Phillip Walsh, Philip Favaro, Brett |
author_sort |
Meintzer, Phillip |
title |
Will you swim into my parlour? In situ observations of Atlantic cod (Gadus morhua) interactions with baited pots, with implications for gear design |
title_short |
Will you swim into my parlour? In situ observations of Atlantic cod (Gadus morhua) interactions with baited pots, with implications for gear design |
title_full |
Will you swim into my parlour? In situ observations of Atlantic cod (Gadus morhua) interactions with baited pots, with implications for gear design |
title_fullStr |
Will you swim into my parlour? In situ observations of Atlantic cod (Gadus morhua) interactions with baited pots, with implications for gear design |
title_full_unstemmed |
Will you swim into my parlour? In situ observations of Atlantic cod (Gadus morhua) interactions with baited pots, with implications for gear design |
title_sort |
will you swim into my parlour? in situ observations of atlantic cod (gadus morhua) interactions with baited pots, with implications for gear design |
publisher |
PeerJ Inc. |
publishDate |
2017 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5301977/ http://www.ncbi.nlm.nih.gov/pubmed/28194312 https://doi.org/10.7717/peerj.2953 |
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_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5301977/ http://www.ncbi.nlm.nih.gov/pubmed/28194312 http://dx.doi.org/10.7717/peerj.2953 |
op_rights |
©2017 Meintzer et al. http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, reproduction and adaptation in any medium and for any purpose provided that it is properly attributed. For attribution, the original author(s), title, publication source (PeerJ) and either DOI or URL of the article must be cited. |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.7717/peerj.2953 |
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5 |
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e2953 |
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1766357750281928704 |