Effect of gillnet twine thickness on capture pattern and efficiency in the Northeast-Arctic cod (Gadus morhua) fishery
Gillnets are among the most common fishing gears worldwide. They are often made of thin twine, which is prone to wear and tear, limiting the lifespan of the gillnet. This increases gillnet turnover, and consequently increased risk of gear discarding, gear loss, ghost fishing and marine pollution. Th...
Published in: | Marine Pollution Bulletin |
---|---|
Main Authors: | , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Elsevier
2023
|
Subjects: | |
Online Access: | https://hdl.handle.net/10037/30488 https://doi.org/10.1016/j.marpolbul.2023.114927 |
id |
ftunivtroemsoe:oai:munin.uit.no:10037/30488 |
---|---|
record_format |
openpolar |
spelling |
ftunivtroemsoe:oai:munin.uit.no:10037/30488 2023-09-26T15:12:25+02:00 Effect of gillnet twine thickness on capture pattern and efficiency in the Northeast-Arctic cod (Gadus morhua) fishery Brinkhof, Ilmar Herrmann, Bent Larsen, Roger B. Brinkhof, Jesse Grimaldo, Eduardo Vollstad, Jørgen 2023-04-15 https://hdl.handle.net/10037/30488 https://doi.org/10.1016/j.marpolbul.2023.114927 eng eng Elsevier Marine Pollution Bulletin Brinkhof, Herrmann, Larsen, Brinkhof, Grimaldo, Vollstad. Effect of gillnet twine thickness on capture pattern and efficiency in the Northeast-Arctic cod (Gadus morhua) fishery. Marine Pollution Bulletin. 2023;191 FRIDAID 2158129 doi:10.1016/j.marpolbul.2023.114927 0025-326X 1879-3363 https://hdl.handle.net/10037/30488 Attribution 4.0 International (CC BY 4.0) openAccess Copyright 2023 The Author(s) https://creativecommons.org/licenses/by/4.0 Journal article Tidsskriftartikkel Peer reviewed publishedVersion 2023 ftunivtroemsoe https://doi.org/10.1016/j.marpolbul.2023.114927 2023-08-30T23:07:24Z Gillnets are among the most common fishing gears worldwide. They are often made of thin twine, which is prone to wear and tear, limiting the lifespan of the gillnet. This increases gillnet turnover, and consequently increased risk of gear discarding, gear loss, ghost fishing and marine pollution. This might be mitigated by increasing twine thickness, and thereby breaking strength. However, the tolerable increase in thickness for gillnet durability without compromising the catch efficiency is unknown. Therefore, this study conducted gillnet fishing trials under commercial conditions in the Northeast-Arctic cod gillnet fishery analysing and comparing ways of capture and efficiency between gillnets with two different twine thicknesses for two different mesh sizes. The results demonstrated that a 30 % increase in breaking strength and twine stiffness did not affect catch performance. Therefore, thicker gillnet twine can potentially reduce marine litter by plastic debris from damaged and lost gears without compromising catch performance. Article in Journal/Newspaper Arctic Arctic cod Arctic Gadus morhua Northeast Arctic cod University of Tromsø: Munin Open Research Archive Arctic Marine Pollution Bulletin 191 114927 |
institution |
Open Polar |
collection |
University of Tromsø: Munin Open Research Archive |
op_collection_id |
ftunivtroemsoe |
language |
English |
description |
Gillnets are among the most common fishing gears worldwide. They are often made of thin twine, which is prone to wear and tear, limiting the lifespan of the gillnet. This increases gillnet turnover, and consequently increased risk of gear discarding, gear loss, ghost fishing and marine pollution. This might be mitigated by increasing twine thickness, and thereby breaking strength. However, the tolerable increase in thickness for gillnet durability without compromising the catch efficiency is unknown. Therefore, this study conducted gillnet fishing trials under commercial conditions in the Northeast-Arctic cod gillnet fishery analysing and comparing ways of capture and efficiency between gillnets with two different twine thicknesses for two different mesh sizes. The results demonstrated that a 30 % increase in breaking strength and twine stiffness did not affect catch performance. Therefore, thicker gillnet twine can potentially reduce marine litter by plastic debris from damaged and lost gears without compromising catch performance. |
format |
Article in Journal/Newspaper |
author |
Brinkhof, Ilmar Herrmann, Bent Larsen, Roger B. Brinkhof, Jesse Grimaldo, Eduardo Vollstad, Jørgen |
spellingShingle |
Brinkhof, Ilmar Herrmann, Bent Larsen, Roger B. Brinkhof, Jesse Grimaldo, Eduardo Vollstad, Jørgen Effect of gillnet twine thickness on capture pattern and efficiency in the Northeast-Arctic cod (Gadus morhua) fishery |
author_facet |
Brinkhof, Ilmar Herrmann, Bent Larsen, Roger B. Brinkhof, Jesse Grimaldo, Eduardo Vollstad, Jørgen |
author_sort |
Brinkhof, Ilmar |
title |
Effect of gillnet twine thickness on capture pattern and efficiency in the Northeast-Arctic cod (Gadus morhua) fishery |
title_short |
Effect of gillnet twine thickness on capture pattern and efficiency in the Northeast-Arctic cod (Gadus morhua) fishery |
title_full |
Effect of gillnet twine thickness on capture pattern and efficiency in the Northeast-Arctic cod (Gadus morhua) fishery |
title_fullStr |
Effect of gillnet twine thickness on capture pattern and efficiency in the Northeast-Arctic cod (Gadus morhua) fishery |
title_full_unstemmed |
Effect of gillnet twine thickness on capture pattern and efficiency in the Northeast-Arctic cod (Gadus morhua) fishery |
title_sort |
effect of gillnet twine thickness on capture pattern and efficiency in the northeast-arctic cod (gadus morhua) fishery |
publisher |
Elsevier |
publishDate |
2023 |
url |
https://hdl.handle.net/10037/30488 https://doi.org/10.1016/j.marpolbul.2023.114927 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Arctic cod Arctic Gadus morhua Northeast Arctic cod |
genre_facet |
Arctic Arctic cod Arctic Gadus morhua Northeast Arctic cod |
op_relation |
Marine Pollution Bulletin Brinkhof, Herrmann, Larsen, Brinkhof, Grimaldo, Vollstad. Effect of gillnet twine thickness on capture pattern and efficiency in the Northeast-Arctic cod (Gadus morhua) fishery. Marine Pollution Bulletin. 2023;191 FRIDAID 2158129 doi:10.1016/j.marpolbul.2023.114927 0025-326X 1879-3363 https://hdl.handle.net/10037/30488 |
op_rights |
Attribution 4.0 International (CC BY 4.0) openAccess Copyright 2023 The Author(s) https://creativecommons.org/licenses/by/4.0 |
op_doi |
https://doi.org/10.1016/j.marpolbul.2023.114927 |
container_title |
Marine Pollution Bulletin |
container_volume |
191 |
container_start_page |
114927 |
_version_ |
1778133150437736448 |