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dc.contributor.authorHelgesen, Irmelin Slettemoen
dc.contributor.authorSkonhoft, Anders
dc.contributor.authorEide, Arne
dc.date.accessioned2019-02-07T13:53:33Z
dc.date.available2019-02-07T13:53:33Z
dc.date.issued2018-08-01
dc.description.abstractA stage structured fishery model with three stages; recruits, immature fish and mature fish is formulated and utilized to analyse maximum sustainable yield (MSY) and optimal harvesting composition in a fishery with two heterogeneous fleets. The stage structured model developed bundles the age classes found in age structured models into stage classes based on their level of maturity, but also the pattern according to which they are harvested. Two fleets, high sea and coastal vessels, harvest respectively the immature and mature stages. The maximum sustainable yield (MSY) is studied in light of both perfect and imperfect fishing selectivity. In addition, we analyse the biomass loss of a sharing rule where the high sea trawler fleet is granted a certain share of the harvested biomass. The paper provides a theoretical extension to the literature on age structured models, and presents several new analytical results related to stage structured models which are supported by a numerical illustration inspired by the North-East Arctic cod fishery.en_US
dc.descriptionAccepted manuscript version, licensed <a href=http://creativecommons.org/licenses/by-nc-nd/4.0/> CC BY-NC-ND 4.0.</a> Published version available at <a href=https://doi.org/10.1016/j.ecolecon.2018.07.005> https://doi.org/10.1016/j.ecolecon.2018.07.005</a>.en_US
dc.identifier.citationHelgesen, I.S., Skonhoft, A. & Eide. A. (2018). Maximum Yield Fishing and Optimal Fleet Composition. A Stage Structured Model Analysis With an Example From the Norwegian North-East Arctic Cod Fishery. <i>Ecological Economics, 153</i>, 204-217. https://doi.org/10.1016/j.ecolecon.2018.07.005en_US
dc.identifier.cristinIDFRIDAID 1607459
dc.identifier.doi10.1016/j.ecolecon.2018.07.005
dc.identifier.issn0921-8009
dc.identifier.issn1873-6106
dc.identifier.urihttps://hdl.handle.net/10037/14647
dc.language.isoengen_US
dc.publisherElsevieren_US
dc.relation.journalEcological Economics
dc.rights.accessRightsopenAccessen_US
dc.subjectVDP::Agriculture and fishery disciplines: 900::Fisheries science: 920en_US
dc.subjectVDP::Landbruks- og Fiskerifag: 900::Fiskerifag: 920en_US
dc.subjectFishery Managementen_US
dc.subjectStage Structureen_US
dc.subjectMaximum Yield Harvestingen_US
dc.subjectSharing Ruleen_US
dc.subjectSelectivityen_US
dc.titleMaximum Yield Fishing and Optimal Fleet Composition. A Stage Structured Model Analysis With an Example From the Norwegian North-East Arctic Cod Fisheryen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


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