The effect of semi-pelagic trawling on american plaice (hippoglossoides platessoides) by-catch reduction in the northeast arctic shrimp fishery
The present study reports results of a small-scale preliminary experiment to evaluate whether lifting trawl doors and sweeps from the seabed can lead to a reduction of by-catch in the Northeast Arctic shrimp trawl fishery. We carried out a catch comparison and catch ratio analysis between two gear c...
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ftsintef:oai:sintef.brage.unit.no:11250/2477350 2023-05-15T14:54:43+02:00 The effect of semi-pelagic trawling on american plaice (hippoglossoides platessoides) by-catch reduction in the northeast arctic shrimp fishery Sistiaga, Manu Berrondo Grimaldo, Eduardo Herrmann, Bent Larsen, Roger B. 2017 application/pdf http://hdl.handle.net/11250/2477350 eng eng Norges forskningsråd: 216423 Andre: Norwegian Fisheries and Aquaculture Research Fund Journal of Ocean Technology. 2017, 12 (2), 60-75. urn:issn:1718-3200 http://hdl.handle.net/11250/2477350 cristin:1537314 Journal of Ocean Technology 60-75 12 Journal of Ocean Technology 2 Shrimp Trawl Semi-pelagic Rigging American plaice By-catch Herding Flatfish Journal article Peer reviewed 2017 ftsintef 2021-08-04T12:00:09Z The present study reports results of a small-scale preliminary experiment to evaluate whether lifting trawl doors and sweeps from the seabed can lead to a reduction of by-catch in the Northeast Arctic shrimp trawl fishery. We carried out a catch comparison and catch ratio analysis between two gear configurations: one with trawl doors and sweeps on the seabed (traditional rigging) and the other with doors and sweeps clear of the seabed (semi-pelagic rigging). The study focused on the by-catch of American plaice (Hippoglossoides platessoides) and showed that the gear was significantly less efficient at catching this species when rigged in the semi-pelagic mode. When rigged this way, the gear captured 52%–66% fewer American plaice between 10 and 40 cm compared to traditional rigging. Moreover, this difference was significant for sizes between 12 and 31 cm, and it increased with fish size. The herding efficiency of doors and sweeps for American plaice was estimated to be 100% and significantly higher than 0 for these sizes. Finally, the analysis carried out did not detect a significant reduction in shrimp catch (in kg) with the experimental gear. This study demonstrates that in addition to having recognized environmental advantages, lifting the doors and sweeps from the seabed could help mitigate American plaice by-catch in the Northeast Arctic shrimp fishery. Although these preliminary results are promising, more extensive data collection is required before definitive conclusions can be reached. acceptedVersion publishedVersion Article in Journal/Newspaper Arctic SINTEF Open (Brage) Arctic |
institution |
Open Polar |
collection |
SINTEF Open (Brage) |
op_collection_id |
ftsintef |
language |
English |
topic |
Shrimp Trawl Semi-pelagic Rigging American plaice By-catch Herding Flatfish |
spellingShingle |
Shrimp Trawl Semi-pelagic Rigging American plaice By-catch Herding Flatfish Sistiaga, Manu Berrondo Grimaldo, Eduardo Herrmann, Bent Larsen, Roger B. The effect of semi-pelagic trawling on american plaice (hippoglossoides platessoides) by-catch reduction in the northeast arctic shrimp fishery |
topic_facet |
Shrimp Trawl Semi-pelagic Rigging American plaice By-catch Herding Flatfish |
description |
The present study reports results of a small-scale preliminary experiment to evaluate whether lifting trawl doors and sweeps from the seabed can lead to a reduction of by-catch in the Northeast Arctic shrimp trawl fishery. We carried out a catch comparison and catch ratio analysis between two gear configurations: one with trawl doors and sweeps on the seabed (traditional rigging) and the other with doors and sweeps clear of the seabed (semi-pelagic rigging). The study focused on the by-catch of American plaice (Hippoglossoides platessoides) and showed that the gear was significantly less efficient at catching this species when rigged in the semi-pelagic mode. When rigged this way, the gear captured 52%–66% fewer American plaice between 10 and 40 cm compared to traditional rigging. Moreover, this difference was significant for sizes between 12 and 31 cm, and it increased with fish size. The herding efficiency of doors and sweeps for American plaice was estimated to be 100% and significantly higher than 0 for these sizes. Finally, the analysis carried out did not detect a significant reduction in shrimp catch (in kg) with the experimental gear. This study demonstrates that in addition to having recognized environmental advantages, lifting the doors and sweeps from the seabed could help mitigate American plaice by-catch in the Northeast Arctic shrimp fishery. Although these preliminary results are promising, more extensive data collection is required before definitive conclusions can be reached. acceptedVersion publishedVersion |
format |
Article in Journal/Newspaper |
author |
Sistiaga, Manu Berrondo Grimaldo, Eduardo Herrmann, Bent Larsen, Roger B. |
author_facet |
Sistiaga, Manu Berrondo Grimaldo, Eduardo Herrmann, Bent Larsen, Roger B. |
author_sort |
Sistiaga, Manu Berrondo |
title |
The effect of semi-pelagic trawling on american plaice (hippoglossoides platessoides) by-catch reduction in the northeast arctic shrimp fishery |
title_short |
The effect of semi-pelagic trawling on american plaice (hippoglossoides platessoides) by-catch reduction in the northeast arctic shrimp fishery |
title_full |
The effect of semi-pelagic trawling on american plaice (hippoglossoides platessoides) by-catch reduction in the northeast arctic shrimp fishery |
title_fullStr |
The effect of semi-pelagic trawling on american plaice (hippoglossoides platessoides) by-catch reduction in the northeast arctic shrimp fishery |
title_full_unstemmed |
The effect of semi-pelagic trawling on american plaice (hippoglossoides platessoides) by-catch reduction in the northeast arctic shrimp fishery |
title_sort |
effect of semi-pelagic trawling on american plaice (hippoglossoides platessoides) by-catch reduction in the northeast arctic shrimp fishery |
publishDate |
2017 |
url |
http://hdl.handle.net/11250/2477350 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
60-75 12 Journal of Ocean Technology 2 |
op_relation |
Norges forskningsråd: 216423 Andre: Norwegian Fisheries and Aquaculture Research Fund Journal of Ocean Technology. 2017, 12 (2), 60-75. urn:issn:1718-3200 http://hdl.handle.net/11250/2477350 cristin:1537314 |
op_rights |
Journal of Ocean Technology |
_version_ |
1766326482082201600 |