New approach for modelling size selectivity in shrimp trawl fisheries
In the deep sea trawl fishery targeting shrimp (Pandalus borealis) and other cold-water shrimp species, fishers often use a Nordmöre sorting grid ahead of a small mesh codend to avoid bycatch. However, small fish can pass through the grid and are subsequently retained in the codend. This makes shrim...
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Oxford University Press
2017
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Online Access: | https://hdl.handle.net/10037/18904 https://doi.org/10.1093/icesjms/fsx117 |
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ftunivtroemsoe:oai:munin.uit.no:10037/18904 2023-05-15T15:38:58+02:00 New approach for modelling size selectivity in shrimp trawl fisheries Larsen, Roger B. Herrmann, Bent Sistiaga, Manu Berrondo Brinkhof, Jesse Tatone, Ivan Langård, Lise 2017-07-10 https://hdl.handle.net/10037/18904 https://doi.org/10.1093/icesjms/fsx117 eng eng Oxford University Press ICES Journal of Marine Science https://academic.oup.com/icesjms/article-abstract/75/1/351/3952607?redirectedFrom=fulltext Larsen, R.B.L., Herrmann, B., Sistiaga, M.B., Brinkhof, J., Tatone, I. & Langård, L. (2018). New approach for modelling size selectivity in shrimp trawl fisheries. ICES Journal of Marine Science, 75 (1), 351-360. FRIDAID 1556026 doi:10.1093/icesjms/fsx117 1054-3139 1095-9289 https://hdl.handle.net/10037/18904 openAccess Copyright 2018 Oxford University Press VDP::Landbruks- og fiskerifag: 900::Fiskerifag: 920::Fangst: 925 VDP::Agriculture and fisheries science: 900::Fisheries science: 920::Catch: 925 Journal article Tidsskriftartikkel Peer reviewed acceptedVersion 2017 ftunivtroemsoe https://doi.org/10.1093/icesjms/fsx117 2021-06-25T17:56:17Z In the deep sea trawl fishery targeting shrimp (Pandalus borealis) and other cold-water shrimp species, fishers often use a Nordmöre sorting grid ahead of a small mesh codend to avoid bycatch. However, small fish can pass through the grid and are subsequently retained in the codend. This makes shrimp size selection complex and the size-dependent curve for both the shrimp and the bycatch species often exhibits a bell-shaped signature. In this study we developed a new model and method to estimate size selection in this fishery, conducted fishing trials in the Northeast Barents Sea, and applied the new method to quantify the individual and combined size selection of the Nordmöre grid and codend for deep water shrimp and two bycatch species. The size selectivity for both bycatch species showed the expected bell-shaped signature with low retention probability of very small and larger fish. The Nordmöre grid had high passage probability for all sizes, although it decreased slightly for the largest shrimps. The smallest shrimps were released by the codend. Article in Journal/Newspaper Barents Sea Pandalus borealis University of Tromsø: Munin Open Research Archive Barents Sea ICES Journal of Marine Science 75 1 351 360 |
institution |
Open Polar |
collection |
University of Tromsø: Munin Open Research Archive |
op_collection_id |
ftunivtroemsoe |
language |
English |
topic |
VDP::Landbruks- og fiskerifag: 900::Fiskerifag: 920::Fangst: 925 VDP::Agriculture and fisheries science: 900::Fisheries science: 920::Catch: 925 |
spellingShingle |
VDP::Landbruks- og fiskerifag: 900::Fiskerifag: 920::Fangst: 925 VDP::Agriculture and fisheries science: 900::Fisheries science: 920::Catch: 925 Larsen, Roger B. Herrmann, Bent Sistiaga, Manu Berrondo Brinkhof, Jesse Tatone, Ivan Langård, Lise New approach for modelling size selectivity in shrimp trawl fisheries |
topic_facet |
VDP::Landbruks- og fiskerifag: 900::Fiskerifag: 920::Fangst: 925 VDP::Agriculture and fisheries science: 900::Fisheries science: 920::Catch: 925 |
description |
In the deep sea trawl fishery targeting shrimp (Pandalus borealis) and other cold-water shrimp species, fishers often use a Nordmöre sorting grid ahead of a small mesh codend to avoid bycatch. However, small fish can pass through the grid and are subsequently retained in the codend. This makes shrimp size selection complex and the size-dependent curve for both the shrimp and the bycatch species often exhibits a bell-shaped signature. In this study we developed a new model and method to estimate size selection in this fishery, conducted fishing trials in the Northeast Barents Sea, and applied the new method to quantify the individual and combined size selection of the Nordmöre grid and codend for deep water shrimp and two bycatch species. The size selectivity for both bycatch species showed the expected bell-shaped signature with low retention probability of very small and larger fish. The Nordmöre grid had high passage probability for all sizes, although it decreased slightly for the largest shrimps. The smallest shrimps were released by the codend. |
format |
Article in Journal/Newspaper |
author |
Larsen, Roger B. Herrmann, Bent Sistiaga, Manu Berrondo Brinkhof, Jesse Tatone, Ivan Langård, Lise |
author_facet |
Larsen, Roger B. Herrmann, Bent Sistiaga, Manu Berrondo Brinkhof, Jesse Tatone, Ivan Langård, Lise |
author_sort |
Larsen, Roger B. |
title |
New approach for modelling size selectivity in shrimp trawl fisheries |
title_short |
New approach for modelling size selectivity in shrimp trawl fisheries |
title_full |
New approach for modelling size selectivity in shrimp trawl fisheries |
title_fullStr |
New approach for modelling size selectivity in shrimp trawl fisheries |
title_full_unstemmed |
New approach for modelling size selectivity in shrimp trawl fisheries |
title_sort |
new approach for modelling size selectivity in shrimp trawl fisheries |
publisher |
Oxford University Press |
publishDate |
2017 |
url |
https://hdl.handle.net/10037/18904 https://doi.org/10.1093/icesjms/fsx117 |
geographic |
Barents Sea |
geographic_facet |
Barents Sea |
genre |
Barents Sea Pandalus borealis |
genre_facet |
Barents Sea Pandalus borealis |
op_relation |
ICES Journal of Marine Science https://academic.oup.com/icesjms/article-abstract/75/1/351/3952607?redirectedFrom=fulltext Larsen, R.B.L., Herrmann, B., Sistiaga, M.B., Brinkhof, J., Tatone, I. & Langård, L. (2018). New approach for modelling size selectivity in shrimp trawl fisheries. ICES Journal of Marine Science, 75 (1), 351-360. FRIDAID 1556026 doi:10.1093/icesjms/fsx117 1054-3139 1095-9289 https://hdl.handle.net/10037/18904 |
op_rights |
openAccess Copyright 2018 Oxford University Press |
op_doi |
https://doi.org/10.1093/icesjms/fsx117 |
container_title |
ICES Journal of Marine Science |
container_volume |
75 |
container_issue |
1 |
container_start_page |
351 |
op_container_end_page |
360 |
_version_ |
1766370396732391424 |