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dc.contributor.authorHerrmann, Bent
dc.contributor.authorGrimaldo, Eduardo
dc.contributor.authorBrcic, Jure
dc.contributor.authorCerbule, Kristine
dc.date.accessioned2020-12-21T11:18:36Z
dc.date.available2020-12-21T11:18:36Z
dc.date.issued2020-12-18
dc.description.abstractSize selection in commercial snow crab (Chionoecetes opilio) pot fisheries is important for reducing on-board sorting and unintended mortality of undersized individuals. In this paper, we tested whether snow crab of various sizes geometrically could pass through diamond meshes of different sizes and opening angles, to estimate a model for predicting the effect of mesh size and mesh opening angle on snow crab size selectivity. The model was able to explain the size selection results from earlier sea trials using commercial snow crab pots. Size selection was strongly dependent on mesh opening angle, making it less well-defined for the conical pots often used in snow crab fisheries where mesh opening angle varies. We predicted the optimal mesh size for the Norwegian snow crab fishery is 140 mm with a 65◦ opening angle, resulting in high capture efficiency for target size snow crab (larger than 100 mm carapace width) and low sorting effort, with approximately 10% of the catch consisting of undersized snow crab. Our model can potentially be used for other snow crab fisheries.en_US
dc.identifier.citationHerrmann B, Grimaldo Ed, Brcic J, Cerbule K. Modelling the effect of mesh size and opening angle on size selection and capture pattern in a snow crab (Chionoecetes opilio) pot fishery. Ocean and Coastal Management. 2020;201en_US
dc.identifier.cristinIDFRIDAID 1861668
dc.identifier.doihttps://doi.org/10.1016/j.ocecoaman.2020.105495
dc.identifier.issn0964-5691
dc.identifier.issn1873-524X
dc.identifier.urihttps://hdl.handle.net/10037/20107
dc.language.isoengen_US
dc.publisherElsevieren_US
dc.relation.journalOcean and Coastal Management
dc.relation.projectIDinfo:eu-repo/grantAgreement/RCN/MAROFF-2/269251/Norway/Improving the design, efficiency and environmental friendliness of snow crab pots//en_US
dc.rights.accessRightsopenAccessen_US
dc.rights.holderCopyright 2020 The Author(s)en_US
dc.subjectVDP::Mathematics and natural science: 400::Zoology and botany: 480en_US
dc.subjectVDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480en_US
dc.titleModelling the effect of mesh size and opening angle on size selection and capture pattern in a snow crab (Chionoecetes opilio) pot fisheryen_US
dc.type.versionpublishedVersionen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


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