Sequential codend improves quality of trawl-caught cod.
Trawl-caught fish are frequently associated with deteriorated catch quality. This study presents a new dual sequential codend concept with the aim of improving the quality of trawl-caught fish by minimizing the frequency and severity of catch damage. During towing, the fish are retained in an anteri...
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ftdoajarticles:oai:doaj.org/article:841910c963b44e189774ba8251bb0c61 2023-05-15T16:19:08+02:00 Sequential codend improves quality of trawl-caught cod. Jesse Brinkhof Stein H Olsen Ólafur A Ingólfsson Bent Herrmann Roger B Larsen 2018-01-01T00:00:00Z https://doi.org/10.1371/journal.pone.0204328 https://doaj.org/article/841910c963b44e189774ba8251bb0c61 EN eng Public Library of Science (PLoS) http://europepmc.org/articles/PMC6179238?pdf=render https://doaj.org/toc/1932-6203 1932-6203 doi:10.1371/journal.pone.0204328 https://doaj.org/article/841910c963b44e189774ba8251bb0c61 PLoS ONE, Vol 13, Iss 10, p e0204328 (2018) Medicine R Science Q article 2018 ftdoajarticles https://doi.org/10.1371/journal.pone.0204328 2022-12-31T14:19:43Z Trawl-caught fish are frequently associated with deteriorated catch quality. This study presents a new dual sequential codend concept with the aim of improving the quality of trawl-caught fish by minimizing the frequency and severity of catch damage. During towing, the fish are retained in an anterior codend segment with the legislated mesh size. A quality improving codend segment, is attached to the aft part of the first codend segment. Its entrance is closed during the towing phase and opened at a predefined depth during haul-back. Comparing the quality of cod (Gadus morhua L.) retained in the sequential codend with cod caught in a conventional codend, demonstrated a significant improvement in the catch quality, i.e. reduction in catch damages. Cod caught in a conventional codend had only a 3.6% probability of being without visually detectable catch damage. The probability for catching cod without catch damage was five times higher when using the dual sequential codend. Furthermore, cod caught in the sequential codend had a significantly reduced probability of incurring specific catch damage, such as gear marks, poor exsanguination, ecchymosis, and skin abrasions. Article in Journal/Newspaper Gadus morhua Directory of Open Access Journals: DOAJ Articles PLOS ONE 13 10 e0204328 |
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English |
topic |
Medicine R Science Q |
spellingShingle |
Medicine R Science Q Jesse Brinkhof Stein H Olsen Ólafur A Ingólfsson Bent Herrmann Roger B Larsen Sequential codend improves quality of trawl-caught cod. |
topic_facet |
Medicine R Science Q |
description |
Trawl-caught fish are frequently associated with deteriorated catch quality. This study presents a new dual sequential codend concept with the aim of improving the quality of trawl-caught fish by minimizing the frequency and severity of catch damage. During towing, the fish are retained in an anterior codend segment with the legislated mesh size. A quality improving codend segment, is attached to the aft part of the first codend segment. Its entrance is closed during the towing phase and opened at a predefined depth during haul-back. Comparing the quality of cod (Gadus morhua L.) retained in the sequential codend with cod caught in a conventional codend, demonstrated a significant improvement in the catch quality, i.e. reduction in catch damages. Cod caught in a conventional codend had only a 3.6% probability of being without visually detectable catch damage. The probability for catching cod without catch damage was five times higher when using the dual sequential codend. Furthermore, cod caught in the sequential codend had a significantly reduced probability of incurring specific catch damage, such as gear marks, poor exsanguination, ecchymosis, and skin abrasions. |
format |
Article in Journal/Newspaper |
author |
Jesse Brinkhof Stein H Olsen Ólafur A Ingólfsson Bent Herrmann Roger B Larsen |
author_facet |
Jesse Brinkhof Stein H Olsen Ólafur A Ingólfsson Bent Herrmann Roger B Larsen |
author_sort |
Jesse Brinkhof |
title |
Sequential codend improves quality of trawl-caught cod. |
title_short |
Sequential codend improves quality of trawl-caught cod. |
title_full |
Sequential codend improves quality of trawl-caught cod. |
title_fullStr |
Sequential codend improves quality of trawl-caught cod. |
title_full_unstemmed |
Sequential codend improves quality of trawl-caught cod. |
title_sort |
sequential codend improves quality of trawl-caught cod. |
publisher |
Public Library of Science (PLoS) |
publishDate |
2018 |
url |
https://doi.org/10.1371/journal.pone.0204328 https://doaj.org/article/841910c963b44e189774ba8251bb0c61 |
genre |
Gadus morhua |
genre_facet |
Gadus morhua |
op_source |
PLoS ONE, Vol 13, Iss 10, p e0204328 (2018) |
op_relation |
http://europepmc.org/articles/PMC6179238?pdf=render https://doaj.org/toc/1932-6203 1932-6203 doi:10.1371/journal.pone.0204328 https://doaj.org/article/841910c963b44e189774ba8251bb0c61 |
op_doi |
https://doi.org/10.1371/journal.pone.0204328 |
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PLOS ONE |
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13 |
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10 |
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e0204328 |
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1766005473209745408 |