Effect of gear design on catch damage on cod (Gadus morhua) in the Barents Sea demersal trawl fishery
Damage incurred during the catch process is an indicator of the overall quality of fish and fish welfare. Because catch quality is difficult to improve once it has deteriorated, it is important to preserve quality during the catch process. Atlantic cod (Gadus morhua) is the most important species in...
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Language: | English |
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Online Access: | https://hdl.handle.net/11250/2683092 https://doi.org/10.1016/j.foodcont.2020.107562 |
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ftimr:oai:imr.brage.unit.no:11250/2683092 2023-05-15T15:27:38+02:00 Effect of gear design on catch damage on cod (Gadus morhua) in the Barents Sea demersal trawl fishery Brinkhof, Jesse Herrmann, Bent Sistiaga, Manu Larsen, Roger B. Jacques, Nadine Gjøsund, Svein Helge 2020 application/pdf https://hdl.handle.net/11250/2683092 https://doi.org/10.1016/j.foodcont.2020.107562 eng eng urn:issn:0956-7135 https://hdl.handle.net/11250/2683092 https://doi.org/10.1016/j.foodcont.2020.107562 cristin:1828701 120 Food Control Peer reviewed Journal article 2020 ftimr https://doi.org/10.1016/j.foodcont.2020.107562 2021-09-23T20:15:52Z Damage incurred during the catch process is an indicator of the overall quality of fish and fish welfare. Because catch quality is difficult to improve once it has deteriorated, it is important to preserve quality during the catch process. Atlantic cod (Gadus morhua) is the most important species in the Barents Sea bottom trawl fishery. Bottom trawling is a non-benign fishing method, and it is therefore considered important to reduce damage imparted to fish during capture, and subsequently improve catch quality and fish welfare. In the present study, the levels of damage on cod captured with a new gear design were assessed in the Barents Sea bottom trawl fishery. Furthermore, this study investigated to what extent the compulsory sorting grid and diamond mesh codend configuration employed in the fishery is responsible for the damage incurred by cod during the capture process. In total, 750 cod captured over 25 hauls were evaluated for catch damage (marks, ecchymosis, exsanguination, and scale loss). The results showed that substituting the grid and codend configuration with a four-panel selective knotless section followed by a gentle codend increased the probability of cod having no catch damage by 6.00% (CI: 0.6%–11.41%). Moreover, the gentle codend led to a significant reduction in the severity of all catch damage categories. publishedVersion Article in Journal/Newspaper atlantic cod Barents Sea Gadus morhua Institute for Marine Research: Brage IMR Barents Sea Food Control 120 107562 |
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Open Polar |
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Institute for Marine Research: Brage IMR |
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ftimr |
language |
English |
description |
Damage incurred during the catch process is an indicator of the overall quality of fish and fish welfare. Because catch quality is difficult to improve once it has deteriorated, it is important to preserve quality during the catch process. Atlantic cod (Gadus morhua) is the most important species in the Barents Sea bottom trawl fishery. Bottom trawling is a non-benign fishing method, and it is therefore considered important to reduce damage imparted to fish during capture, and subsequently improve catch quality and fish welfare. In the present study, the levels of damage on cod captured with a new gear design were assessed in the Barents Sea bottom trawl fishery. Furthermore, this study investigated to what extent the compulsory sorting grid and diamond mesh codend configuration employed in the fishery is responsible for the damage incurred by cod during the capture process. In total, 750 cod captured over 25 hauls were evaluated for catch damage (marks, ecchymosis, exsanguination, and scale loss). The results showed that substituting the grid and codend configuration with a four-panel selective knotless section followed by a gentle codend increased the probability of cod having no catch damage by 6.00% (CI: 0.6%–11.41%). Moreover, the gentle codend led to a significant reduction in the severity of all catch damage categories. publishedVersion |
format |
Article in Journal/Newspaper |
author |
Brinkhof, Jesse Herrmann, Bent Sistiaga, Manu Larsen, Roger B. Jacques, Nadine Gjøsund, Svein Helge |
spellingShingle |
Brinkhof, Jesse Herrmann, Bent Sistiaga, Manu Larsen, Roger B. Jacques, Nadine Gjøsund, Svein Helge Effect of gear design on catch damage on cod (Gadus morhua) in the Barents Sea demersal trawl fishery |
author_facet |
Brinkhof, Jesse Herrmann, Bent Sistiaga, Manu Larsen, Roger B. Jacques, Nadine Gjøsund, Svein Helge |
author_sort |
Brinkhof, Jesse |
title |
Effect of gear design on catch damage on cod (Gadus morhua) in the Barents Sea demersal trawl fishery |
title_short |
Effect of gear design on catch damage on cod (Gadus morhua) in the Barents Sea demersal trawl fishery |
title_full |
Effect of gear design on catch damage on cod (Gadus morhua) in the Barents Sea demersal trawl fishery |
title_fullStr |
Effect of gear design on catch damage on cod (Gadus morhua) in the Barents Sea demersal trawl fishery |
title_full_unstemmed |
Effect of gear design on catch damage on cod (Gadus morhua) in the Barents Sea demersal trawl fishery |
title_sort |
effect of gear design on catch damage on cod (gadus morhua) in the barents sea demersal trawl fishery |
publishDate |
2020 |
url |
https://hdl.handle.net/11250/2683092 https://doi.org/10.1016/j.foodcont.2020.107562 |
geographic |
Barents Sea |
geographic_facet |
Barents Sea |
genre |
atlantic cod Barents Sea Gadus morhua |
genre_facet |
atlantic cod Barents Sea Gadus morhua |
op_source |
120 Food Control |
op_relation |
urn:issn:0956-7135 https://hdl.handle.net/11250/2683092 https://doi.org/10.1016/j.foodcont.2020.107562 cristin:1828701 |
op_doi |
https://doi.org/10.1016/j.foodcont.2020.107562 |
container_title |
Food Control |
container_volume |
120 |
container_start_page |
107562 |
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1766358060165496832 |