Effect of a quality-improving codend on size selectivity and catch patterns of cod in bottom trawl fishery
Accepted manuscript version. Published version available at https://doi.org/10.1139/cjfas-2018-0402 . Copyright NRC Research Press. A new codend concept developed and tested exhibited significantly improved quality of caught cod ( Gadus morhua ) compared to that of the conventional codend used in th...
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Online Access: | https://hdl.handle.net/10037/14794 https://doi.org/10.1139/cjfas-2018-0402 |
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ftunivtroemsoe:oai:munin.uit.no:10037/14794 2023-05-15T15:38:43+02:00 Effect of a quality-improving codend on size selectivity and catch patterns of cod in bottom trawl fishery Brinkhof, Jesse Herrmann, Bent Larsen, Roger B. Veiga-Malta, Tiago 2019-02-26 https://hdl.handle.net/10037/14794 https://doi.org/10.1139/cjfas-2018-0402 eng eng NRC Research Press Canadian Journal of Fisheries and Aquatic Sciences info:eu-repo/grantAgreement/RCN/SFI/203477/Norway/CRISP - Centre for Research-based Innovation in Sustainable Fish Capture and Processing Technology// Brinkhof, J., Herrmann, B., Larsen, R.B. & Veiga-Malta, T. (2019). Effect of a quality-improving codend on size selectivity and catch patterns of cod in bottom trawl fishery. Canadian Journal of Fisheries and Aquatic Sciences . https://doi.org/10.1139/cjfas-2018-0402 FRIDAID 1680926 doi:10.1139/cjfas-2018-0402 0706-652X 1205-7533 https://hdl.handle.net/10037/14794 openAccess VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920 VDP::Landbruks- og Fiskerifag: 900::Fiskerifag: 920 Codend bottom trawl cod sequential codend size selectivity Journal article Tidsskriftartikkel Peer reviewed 2019 ftunivtroemsoe https://doi.org/10.1139/cjfas-2018-0402 2021-06-25T17:56:26Z Accepted manuscript version. Published version available at https://doi.org/10.1139/cjfas-2018-0402 . Copyright NRC Research Press. A new codend concept developed and tested exhibited significantly improved quality of caught cod ( Gadus morhua ) compared to that of the conventional codend used in the Barents Sea bottom trawl fishery. However, the design of the new quality-improving codend raised concerns about its size selectivity and the possibility that higher retention probability could negatively impact the catch pattern by increasing the proportion of undersized cod. Therefore, the goal of this study was to quantify and compare the size selectivity and catch pattern for cod when deploying respectively the conventional and new quality-improving codend in the Barents Sea bottom trawl fishery. The new quality-improving codend had significantly lower relative size selectivity than the conventional codend, but no significant difference in the catch patterns was detected in the trawl. Further, estimation of the total size selectivity in the trawl revealed that the increased retention of small cod when using the quality-improving codend was minor. Hence, despite the reduced selectivity, the quality-improving codend can be used with low risk of retaining small cod. Article in Journal/Newspaper Barents Sea Gadus morhua University of Tromsø: Munin Open Research Archive Barents Sea Canadian Journal of Fisheries and Aquatic Sciences 76 11 2110 2120 |
institution |
Open Polar |
collection |
University of Tromsø: Munin Open Research Archive |
op_collection_id |
ftunivtroemsoe |
language |
English |
topic |
VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920 VDP::Landbruks- og Fiskerifag: 900::Fiskerifag: 920 Codend bottom trawl cod sequential codend size selectivity |
spellingShingle |
VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920 VDP::Landbruks- og Fiskerifag: 900::Fiskerifag: 920 Codend bottom trawl cod sequential codend size selectivity Brinkhof, Jesse Herrmann, Bent Larsen, Roger B. Veiga-Malta, Tiago Effect of a quality-improving codend on size selectivity and catch patterns of cod in bottom trawl fishery |
topic_facet |
VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920 VDP::Landbruks- og Fiskerifag: 900::Fiskerifag: 920 Codend bottom trawl cod sequential codend size selectivity |
description |
Accepted manuscript version. Published version available at https://doi.org/10.1139/cjfas-2018-0402 . Copyright NRC Research Press. A new codend concept developed and tested exhibited significantly improved quality of caught cod ( Gadus morhua ) compared to that of the conventional codend used in the Barents Sea bottom trawl fishery. However, the design of the new quality-improving codend raised concerns about its size selectivity and the possibility that higher retention probability could negatively impact the catch pattern by increasing the proportion of undersized cod. Therefore, the goal of this study was to quantify and compare the size selectivity and catch pattern for cod when deploying respectively the conventional and new quality-improving codend in the Barents Sea bottom trawl fishery. The new quality-improving codend had significantly lower relative size selectivity than the conventional codend, but no significant difference in the catch patterns was detected in the trawl. Further, estimation of the total size selectivity in the trawl revealed that the increased retention of small cod when using the quality-improving codend was minor. Hence, despite the reduced selectivity, the quality-improving codend can be used with low risk of retaining small cod. |
format |
Article in Journal/Newspaper |
author |
Brinkhof, Jesse Herrmann, Bent Larsen, Roger B. Veiga-Malta, Tiago |
author_facet |
Brinkhof, Jesse Herrmann, Bent Larsen, Roger B. Veiga-Malta, Tiago |
author_sort |
Brinkhof, Jesse |
title |
Effect of a quality-improving codend on size selectivity and catch patterns of cod in bottom trawl fishery |
title_short |
Effect of a quality-improving codend on size selectivity and catch patterns of cod in bottom trawl fishery |
title_full |
Effect of a quality-improving codend on size selectivity and catch patterns of cod in bottom trawl fishery |
title_fullStr |
Effect of a quality-improving codend on size selectivity and catch patterns of cod in bottom trawl fishery |
title_full_unstemmed |
Effect of a quality-improving codend on size selectivity and catch patterns of cod in bottom trawl fishery |
title_sort |
effect of a quality-improving codend on size selectivity and catch patterns of cod in bottom trawl fishery |
publisher |
NRC Research Press |
publishDate |
2019 |
url |
https://hdl.handle.net/10037/14794 https://doi.org/10.1139/cjfas-2018-0402 |
geographic |
Barents Sea |
geographic_facet |
Barents Sea |
genre |
Barents Sea Gadus morhua |
genre_facet |
Barents Sea Gadus morhua |
op_relation |
Canadian Journal of Fisheries and Aquatic Sciences info:eu-repo/grantAgreement/RCN/SFI/203477/Norway/CRISP - Centre for Research-based Innovation in Sustainable Fish Capture and Processing Technology// Brinkhof, J., Herrmann, B., Larsen, R.B. & Veiga-Malta, T. (2019). Effect of a quality-improving codend on size selectivity and catch patterns of cod in bottom trawl fishery. Canadian Journal of Fisheries and Aquatic Sciences . https://doi.org/10.1139/cjfas-2018-0402 FRIDAID 1680926 doi:10.1139/cjfas-2018-0402 0706-652X 1205-7533 https://hdl.handle.net/10037/14794 |
op_rights |
openAccess |
op_doi |
https://doi.org/10.1139/cjfas-2018-0402 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
container_volume |
76 |
container_issue |
11 |
container_start_page |
2110 |
op_container_end_page |
2120 |
_version_ |
1766369991974715392 |