Effect of the Nordmøre grid bar spacing on size selectivity, catch efficiency and bycatch of the Barents Sea Northern shrimp fishery
The introduction of the Nordmøre grid in shrimp trawls has reduced the bycatch of non-target species. In the Norwegian Northern shrimp ( Pandalus borealis ) fishery, the mandatory selective gear consists of a Nordmøre grid with 19 mm bar spacing combined with a 35 mm mesh size diamond mesh codend. H...
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2022
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ftdtupubl:oai:pure.atira.dk:publications/119675f2-c1d2-4625-a3b9-4d0825cc8632 2024-09-15T17:57:51+00:00 Effect of the Nordmøre grid bar spacing on size selectivity, catch efficiency and bycatch of the Barents Sea Northern shrimp fishery Larsen, Roger B. Herrmann, Bent Sistiaga, Manu Brinkhof, Jesse Cerbule, Kristine Grimaldo, Eduardo Lomeli, Mark J.M. Carbonara, Pierluigi 2022 application/pdf https://orbit.dtu.dk/en/publications/119675f2-c1d2-4625-a3b9-4d0825cc8632 https://doi.org/10.1371/journal.pone.0277788 https://backend.orbit.dtu.dk/ws/files/304042787/journal.pone.0277788.pdf eng eng https://orbit.dtu.dk/en/publications/119675f2-c1d2-4625-a3b9-4d0825cc8632 info:eu-repo/semantics/openAccess Larsen , R B , Herrmann , B , Sistiaga , M , Brinkhof , J , Cerbule , K , Grimaldo , E , Lomeli , M J M & Carbonara , P (ed.) 2022 , ' Effect of the Nordmøre grid bar spacing on size selectivity, catch efficiency and bycatch of the Barents Sea Northern shrimp fishery ' , PLOS ONE , vol. 17 , no. 12 , e0277788 . https://doi.org/10.1371/journal.pone.0277788 /dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water article 2022 ftdtupubl https://doi.org/10.1371/journal.pone.0277788 2024-08-05T23:48:30Z The introduction of the Nordmøre grid in shrimp trawls has reduced the bycatch of non-target species. In the Norwegian Northern shrimp ( Pandalus borealis ) fishery, the mandatory selective gear consists of a Nordmøre grid with 19 mm bar spacing combined with a 35 mm mesh size diamond mesh codend. However, fish bycatch in shrimp trawls remains a challenge and further modifications of the gear that can improve selectivity are still sought. Therefore, this study estimated and compared the size selectivity of Nordmøre grids with bar spacings of 17 and 21 mm. Further, the effect of applying these two grids on trawl size selectivity was predicted and compared to the legislated gear configuration. Experimental fishing trials were conducted in the Barents Sea where the bottom trawl fleet targets Northern shrimp. Results were obtained for the target species and two by-catch species: cod ( Gadus morhua ) and American plaice ( Hippoglossoides platessoides ). This study demonstrated that reducing bar spacing can significantly reduce fish bycatch while only marginally affecting catch efficiency of Northern shrimp. This is a potentially important finding from a management perspective that could be applicable to other shrimp fisheries where flexibility in the use of different grid bar spacings may be beneficial to maximize the reduction of unwanted bycatch while minimizing the loss of target species. Article in Journal/Newspaper Barents Sea Gadus morhua northern shrimp Pandalus borealis Technical University of Denmark: DTU Orbit PLOS ONE 17 12 e0277788 |
institution |
Open Polar |
collection |
Technical University of Denmark: DTU Orbit |
op_collection_id |
ftdtupubl |
language |
English |
topic |
/dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water |
spellingShingle |
/dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water Larsen, Roger B. Herrmann, Bent Sistiaga, Manu Brinkhof, Jesse Cerbule, Kristine Grimaldo, Eduardo Lomeli, Mark J.M. Effect of the Nordmøre grid bar spacing on size selectivity, catch efficiency and bycatch of the Barents Sea Northern shrimp fishery |
topic_facet |
/dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water |
description |
The introduction of the Nordmøre grid in shrimp trawls has reduced the bycatch of non-target species. In the Norwegian Northern shrimp ( Pandalus borealis ) fishery, the mandatory selective gear consists of a Nordmøre grid with 19 mm bar spacing combined with a 35 mm mesh size diamond mesh codend. However, fish bycatch in shrimp trawls remains a challenge and further modifications of the gear that can improve selectivity are still sought. Therefore, this study estimated and compared the size selectivity of Nordmøre grids with bar spacings of 17 and 21 mm. Further, the effect of applying these two grids on trawl size selectivity was predicted and compared to the legislated gear configuration. Experimental fishing trials were conducted in the Barents Sea where the bottom trawl fleet targets Northern shrimp. Results were obtained for the target species and two by-catch species: cod ( Gadus morhua ) and American plaice ( Hippoglossoides platessoides ). This study demonstrated that reducing bar spacing can significantly reduce fish bycatch while only marginally affecting catch efficiency of Northern shrimp. This is a potentially important finding from a management perspective that could be applicable to other shrimp fisheries where flexibility in the use of different grid bar spacings may be beneficial to maximize the reduction of unwanted bycatch while minimizing the loss of target species. |
author2 |
Carbonara, Pierluigi |
format |
Article in Journal/Newspaper |
author |
Larsen, Roger B. Herrmann, Bent Sistiaga, Manu Brinkhof, Jesse Cerbule, Kristine Grimaldo, Eduardo Lomeli, Mark J.M. |
author_facet |
Larsen, Roger B. Herrmann, Bent Sistiaga, Manu Brinkhof, Jesse Cerbule, Kristine Grimaldo, Eduardo Lomeli, Mark J.M. |
author_sort |
Larsen, Roger B. |
title |
Effect of the Nordmøre grid bar spacing on size selectivity, catch efficiency and bycatch of the Barents Sea Northern shrimp fishery |
title_short |
Effect of the Nordmøre grid bar spacing on size selectivity, catch efficiency and bycatch of the Barents Sea Northern shrimp fishery |
title_full |
Effect of the Nordmøre grid bar spacing on size selectivity, catch efficiency and bycatch of the Barents Sea Northern shrimp fishery |
title_fullStr |
Effect of the Nordmøre grid bar spacing on size selectivity, catch efficiency and bycatch of the Barents Sea Northern shrimp fishery |
title_full_unstemmed |
Effect of the Nordmøre grid bar spacing on size selectivity, catch efficiency and bycatch of the Barents Sea Northern shrimp fishery |
title_sort |
effect of the nordmøre grid bar spacing on size selectivity, catch efficiency and bycatch of the barents sea northern shrimp fishery |
publishDate |
2022 |
url |
https://orbit.dtu.dk/en/publications/119675f2-c1d2-4625-a3b9-4d0825cc8632 https://doi.org/10.1371/journal.pone.0277788 https://backend.orbit.dtu.dk/ws/files/304042787/journal.pone.0277788.pdf |
genre |
Barents Sea Gadus morhua northern shrimp Pandalus borealis |
genre_facet |
Barents Sea Gadus morhua northern shrimp Pandalus borealis |
op_source |
Larsen , R B , Herrmann , B , Sistiaga , M , Brinkhof , J , Cerbule , K , Grimaldo , E , Lomeli , M J M & Carbonara , P (ed.) 2022 , ' Effect of the Nordmøre grid bar spacing on size selectivity, catch efficiency and bycatch of the Barents Sea Northern shrimp fishery ' , PLOS ONE , vol. 17 , no. 12 , e0277788 . https://doi.org/10.1371/journal.pone.0277788 |
op_relation |
https://orbit.dtu.dk/en/publications/119675f2-c1d2-4625-a3b9-4d0825cc8632 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1371/journal.pone.0277788 |
container_title |
PLOS ONE |
container_volume |
17 |
container_issue |
12 |
container_start_page |
e0277788 |
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1810434053206179840 |