The effect of Nordmøre grid length and angle on codend entry of bycatch fish species and shrimp catches
Accepted manuscript version. Published version available at https://doi.org/10.1139/cjfas-2018-0069 . The Nordmøre grid is regarded as an efficient bycatch reducing device and is used in various shrimp trawl fisheries globally. However, in some shrimp fisheries bycatch remains a problem that serious...
Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
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Online Access: | https://hdl.handle.net/10037/14435 https://doi.org/10.1139/cjfas-2018-0069 |
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ftunivtroemsoe:oai:munin.uit.no:10037/14435 2023-05-15T15:07:30+02:00 The effect of Nordmøre grid length and angle on codend entry of bycatch fish species and shrimp catches Larsen, Roger B. Sistiaga, Manu Berrondo Herrmann, Bent Brinkhof, Jesse Tatone, Ivan Santos, Juan 2018-06-18 https://hdl.handle.net/10037/14435 https://doi.org/10.1139/cjfas-2018-0069 eng eng NRC Research Press Canadian Journal of Fisheries and Aquatic Sciences Larsen, R.B., Sistiaga, M., Herrmann, B., Brinkhof, J., Tatone, I. & Santos, J. (2018). The effect of Nordmøre grid length and angle on codend entry of bycatch fish species and shrimp catches. Canadian Journal of Fisheries and Aquatic Sciences . https://doi.org/10.1139/cjfas-2018-0069 FRIDAID 1618736 doi:10.1139/cjfas-2018-0069 0706-652X 1205-7533 https://hdl.handle.net/10037/14435 openAccess VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920 VDP::Landbruks- og Fiskerifag: 900::Fiskerifag: 920 Shrimp trawl bycatch reduction grid angle grid length size selectivity Journal article Tidsskriftartikkel Peer reviewed 2018 ftunivtroemsoe https://doi.org/10.1139/cjfas-2018-0069 2021-06-25T17:56:17Z Accepted manuscript version. Published version available at https://doi.org/10.1139/cjfas-2018-0069 . The Nordmøre grid is regarded as an efficient bycatch reducing device and is used in various shrimp trawl fisheries globally. However, in some shrimp fisheries bycatch remains a problem that seriously impacts commercial trawl activities. This study tested and compared the performance of two versions of the Nordmøre grid in the Northeast Arctic Deepwater Shrimp (Pandalus borealis) fishery; a standard version with an operating angle of ca. 45° and a longer version of the grid (40% longer) with an operating angle of ca. 30°. The grid passage probability for the bycatch of juvenile Cod, Haddock, American Plaice and Redfish increased significantly for certain size ranges of fish when using the longer grid. The longer grid also resulted in a significant increase in grid passage probability for large shrimp. Previous studies have reported that a reduced operating angle can lead to a lower grid passage probability for bycatch fish species and shrimp, however the results of the current study demonstrate that a longer Nordmøre grid more than compensates for the reduced operational angle. Article in Journal/Newspaper Arctic Pandalus borealis University of Tromsø: Munin Open Research Archive Arctic Nordmøre ENVELOPE(8.500,8.500,63.000,63.000) Canadian Journal of Fisheries and Aquatic Sciences 76 2 308 319 |
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 Shrimp trawl bycatch reduction grid angle grid length size selectivity |
spellingShingle |
VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920 VDP::Landbruks- og Fiskerifag: 900::Fiskerifag: 920 Shrimp trawl bycatch reduction grid angle grid length size selectivity Larsen, Roger B. Sistiaga, Manu Berrondo Herrmann, Bent Brinkhof, Jesse Tatone, Ivan Santos, Juan The effect of Nordmøre grid length and angle on codend entry of bycatch fish species and shrimp catches |
topic_facet |
VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920 VDP::Landbruks- og Fiskerifag: 900::Fiskerifag: 920 Shrimp trawl bycatch reduction grid angle grid length size selectivity |
description |
Accepted manuscript version. Published version available at https://doi.org/10.1139/cjfas-2018-0069 . The Nordmøre grid is regarded as an efficient bycatch reducing device and is used in various shrimp trawl fisheries globally. However, in some shrimp fisheries bycatch remains a problem that seriously impacts commercial trawl activities. This study tested and compared the performance of two versions of the Nordmøre grid in the Northeast Arctic Deepwater Shrimp (Pandalus borealis) fishery; a standard version with an operating angle of ca. 45° and a longer version of the grid (40% longer) with an operating angle of ca. 30°. The grid passage probability for the bycatch of juvenile Cod, Haddock, American Plaice and Redfish increased significantly for certain size ranges of fish when using the longer grid. The longer grid also resulted in a significant increase in grid passage probability for large shrimp. Previous studies have reported that a reduced operating angle can lead to a lower grid passage probability for bycatch fish species and shrimp, however the results of the current study demonstrate that a longer Nordmøre grid more than compensates for the reduced operational angle. |
format |
Article in Journal/Newspaper |
author |
Larsen, Roger B. Sistiaga, Manu Berrondo Herrmann, Bent Brinkhof, Jesse Tatone, Ivan Santos, Juan |
author_facet |
Larsen, Roger B. Sistiaga, Manu Berrondo Herrmann, Bent Brinkhof, Jesse Tatone, Ivan Santos, Juan |
author_sort |
Larsen, Roger B. |
title |
The effect of Nordmøre grid length and angle on codend entry of bycatch fish species and shrimp catches |
title_short |
The effect of Nordmøre grid length and angle on codend entry of bycatch fish species and shrimp catches |
title_full |
The effect of Nordmøre grid length and angle on codend entry of bycatch fish species and shrimp catches |
title_fullStr |
The effect of Nordmøre grid length and angle on codend entry of bycatch fish species and shrimp catches |
title_full_unstemmed |
The effect of Nordmøre grid length and angle on codend entry of bycatch fish species and shrimp catches |
title_sort |
effect of nordmøre grid length and angle on codend entry of bycatch fish species and shrimp catches |
publisher |
NRC Research Press |
publishDate |
2018 |
url |
https://hdl.handle.net/10037/14435 https://doi.org/10.1139/cjfas-2018-0069 |
long_lat |
ENVELOPE(8.500,8.500,63.000,63.000) |
geographic |
Arctic Nordmøre |
geographic_facet |
Arctic Nordmøre |
genre |
Arctic Pandalus borealis |
genre_facet |
Arctic Pandalus borealis |
op_relation |
Canadian Journal of Fisheries and Aquatic Sciences Larsen, R.B., Sistiaga, M., Herrmann, B., Brinkhof, J., Tatone, I. & Santos, J. (2018). The effect of Nordmøre grid length and angle on codend entry of bycatch fish species and shrimp catches. Canadian Journal of Fisheries and Aquatic Sciences . https://doi.org/10.1139/cjfas-2018-0069 FRIDAID 1618736 doi:10.1139/cjfas-2018-0069 0706-652X 1205-7533 https://hdl.handle.net/10037/14435 |
op_rights |
openAccess |
op_doi |
https://doi.org/10.1139/cjfas-2018-0069 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
container_volume |
76 |
container_issue |
2 |
container_start_page |
308 |
op_container_end_page |
319 |
_version_ |
1766338986010214400 |