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dc.contributor.authorSistiaga, Manu Berrondo
dc.contributor.authorGrimaldo, Eduardo
dc.contributor.authorHerrmann, Bent
dc.contributor.authorLarsen, Roger B.
dc.date.accessioned2018-01-14T11:31:18Z
dc.date.available2018-01-14T11:31:18Z
dc.date.issued2017
dc.description.abstractThe 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.en_US
dc.descriptionSource at <a href=http://www.thejot.net/?page_id=837&show_article_preview=867> http://www.thejot.net/?page_id=837&show_article_preview=867 </a>en_US
dc.identifier.citationSistiaga MB, Grimaldo E, Herrmann B, Larsen RB. The effect of semi-pelagic trawling on american plaice (hippoglossoides platessoides) by-catch reduction in the northeast arctic shrimp fishery. Journal of Ocean Technology. 2017;12(2):60-75en_US
dc.identifier.cristinIDFRIDAID 1537314
dc.identifier.issn1718-3200
dc.identifier.issn1718-3219
dc.identifier.urihttps://hdl.handle.net/10037/11971
dc.language.isoengen_US
dc.publisherMemorial University of Newfoundland, Fisheries and Marine Institute, Centre for Applied Ocean Technologyen_US
dc.relation.journalJournal of Ocean Technology
dc.relation.projectIDNorges forskningsråd: 216423en_US
dc.relation.projectIDAndre: Norwegian Fisheries and Aquaculture Research Funden_US
dc.relation.projectIDinfo:eu-repo/grantAgreement/RCN/MAROFF-2/216423/Norway/ DEVELOPMENT OF MULTIRIG SEMI-PELAGIC TRAWLING//en_US
dc.rights.accessRightsopenAccessen_US
dc.subjectVDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Fisheries technology: 924en_US
dc.subjectVDP::Landbruks- og Fiskerifag: 900::Fiskerifag: 920::Fiskeriteknologi: 924en_US
dc.subjectVDP::Landbruks- og Fiskerifag: 900::Fiskerifag: 920::Fangst: 925en_US
dc.subjectVDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Catch: 925en_US
dc.titleThe effect of semi-pelagic trawling on american plaice (hippoglossoides platessoides) by-catch reduction in the northeast arctic shrimp fisheryen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


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