Behaviour in a bottom trawl: moving forward to limit catches of Atlantic cod
Abstract The iconic Atlantic cod (Gadus morhua Linnaeus, 1758) has inspired a substantial body of fishing-gear research across its geographical range, with recent efforts predominately to reduce catches of this species in fisheries where their populations are fragile. Despite their iconic status and...
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2021
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Online Access: | http://dx.doi.org/10.1093/icesjms/fsab106 https://academic.oup.com/icesjms/article-pdf/78/7/2317/41746881/fsab106.pdf |
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croxfordunivpr:10.1093/icesjms/fsab106 2024-06-09T07:44:38+00:00 Behaviour in a bottom trawl: moving forward to limit catches of Atlantic cod Pol, M Eayrs, S Browman, Howard NOAA Saltonstall-Kennedy Project NOAA Fisheries 2021 http://dx.doi.org/10.1093/icesjms/fsab106 https://academic.oup.com/icesjms/article-pdf/78/7/2317/41746881/fsab106.pdf en eng Oxford University Press (OUP) https://academic.oup.com/journals/pages/open_access/funder_policies/chorus/standard_publication_model ICES Journal of Marine Science volume 78, issue 7, page 2317-2324 ISSN 1054-3139 1095-9289 journal-article 2021 croxfordunivpr https://doi.org/10.1093/icesjms/fsab106 2024-05-10T13:14:10Z Abstract The iconic Atlantic cod (Gadus morhua Linnaeus, 1758) has inspired a substantial body of fishing-gear research across its geographical range, with recent efforts predominately to reduce catches of this species in fisheries where their populations are fragile. Despite their iconic status and long history of study compared to other species, our understanding of cod behaviour during the capture process in a bottom trawl remains frustratingly limited. Much of our understanding is derived indirectly through catch results, supported to a limited extent by direct observations of cod in situ or held in laboratories. In this paper, we describe four research challenges and directions that we consider critical to advance our knowledge of cod behaviour, and ultimately, to improve the selectivity of bottom trawls to reduce catches of cod. These include the resurrection of behavioural research to directly observe and measure their reaction and sensory capabilities, and improved interpretation of their behaviour in response to a bottom trawl. It is also our view that progress in limiting catches of cod should emphasize stimulating avoidance in advance or at the mouth of an approaching bottom trawl, rather than retrospectively attempting to do so after they have entered the trawl mouth. Article in Journal/Newspaper atlantic cod Gadus morhua Oxford University Press ICES Journal of Marine Science |
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Open Polar |
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Oxford University Press |
op_collection_id |
croxfordunivpr |
language |
English |
description |
Abstract The iconic Atlantic cod (Gadus morhua Linnaeus, 1758) has inspired a substantial body of fishing-gear research across its geographical range, with recent efforts predominately to reduce catches of this species in fisheries where their populations are fragile. Despite their iconic status and long history of study compared to other species, our understanding of cod behaviour during the capture process in a bottom trawl remains frustratingly limited. Much of our understanding is derived indirectly through catch results, supported to a limited extent by direct observations of cod in situ or held in laboratories. In this paper, we describe four research challenges and directions that we consider critical to advance our knowledge of cod behaviour, and ultimately, to improve the selectivity of bottom trawls to reduce catches of cod. These include the resurrection of behavioural research to directly observe and measure their reaction and sensory capabilities, and improved interpretation of their behaviour in response to a bottom trawl. It is also our view that progress in limiting catches of cod should emphasize stimulating avoidance in advance or at the mouth of an approaching bottom trawl, rather than retrospectively attempting to do so after they have entered the trawl mouth. |
author2 |
Browman, Howard NOAA Saltonstall-Kennedy Project NOAA Fisheries |
format |
Article in Journal/Newspaper |
author |
Pol, M Eayrs, S |
spellingShingle |
Pol, M Eayrs, S Behaviour in a bottom trawl: moving forward to limit catches of Atlantic cod |
author_facet |
Pol, M Eayrs, S |
author_sort |
Pol, M |
title |
Behaviour in a bottom trawl: moving forward to limit catches of Atlantic cod |
title_short |
Behaviour in a bottom trawl: moving forward to limit catches of Atlantic cod |
title_full |
Behaviour in a bottom trawl: moving forward to limit catches of Atlantic cod |
title_fullStr |
Behaviour in a bottom trawl: moving forward to limit catches of Atlantic cod |
title_full_unstemmed |
Behaviour in a bottom trawl: moving forward to limit catches of Atlantic cod |
title_sort |
behaviour in a bottom trawl: moving forward to limit catches of atlantic cod |
publisher |
Oxford University Press (OUP) |
publishDate |
2021 |
url |
http://dx.doi.org/10.1093/icesjms/fsab106 https://academic.oup.com/icesjms/article-pdf/78/7/2317/41746881/fsab106.pdf |
genre |
atlantic cod Gadus morhua |
genre_facet |
atlantic cod Gadus morhua |
op_source |
ICES Journal of Marine Science volume 78, issue 7, page 2317-2324 ISSN 1054-3139 1095-9289 |
op_rights |
https://academic.oup.com/journals/pages/open_access/funder_policies/chorus/standard_publication_model |
op_doi |
https://doi.org/10.1093/icesjms/fsab106 |
container_title |
ICES Journal of Marine Science |
_version_ |
1801373421410451456 |