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dc.contributor.authorLiu, Xiaozi
dc.contributor.authorHeino, Mikko Petteri
dc.date.accessioned2020-06-18T11:42:28Z
dc.date.available2020-06-18T11:42:28Z
dc.date.issued2019
dc.PublishedLiu X, Heino M. Evaluating effort regulation in mixed fisheries: a Monte Carlo approach. ICES Journal of Marine Science. 2019;76(7):2114-2124eng
dc.identifier.issn1054-3139en_US
dc.identifier.issn1095-9289en_US
dc.identifier.urihttps://hdl.handle.net/1956/22710
dc.descriptionUnder embargo until: 2020-08-13
dc.description.abstractThis paper evaluates whether effort regulation could achieve the goal of protecting low-abundance species in mixed fisheries. We construct a two-species bio-economic model and compare the stock abundance ratio in the end of the fishing season with the ratio prior to the fishing. Fishers’ profit maximization problem is governed by three key factors: (i) the overall efficiency of catching different species (catchability), (ii) the price of different species, and (iii) their ability to catch the favoured species separately from the less-favoured species (separability). Using a Monte Carlo sampling of feasible parameters space, we show that effort regulation has good chances (87% of the cases) of maintaining the end stock ratio near equal levels (⁠1/2< stock ratio <2) when the initial stock ratio is equal. If the initial stock ratio is not equal, however, there is a high risk (about 50% of the cases) that effort control increases differences in the relative species abundances, rather than diminishing them. The effects depend on whether the key factors determining fishing profitability are counteracting or reinforcing each other, and their relative strength. Our results warn against placing too much faith on the ability of effort regulation to protect species at low abundances from excessive exploitation.en_US
dc.language.isoengeng
dc.publisherOxford University Pressen_US
dc.titleEvaluating effort regulation in mixed fisheries: a Monte Carlo approachen_US
dc.typePeer reviewed
dc.typeJournal article
dc.date.updated2020-01-10T12:00:13Z
dc.description.versionacceptedVersionen_US
dc.rights.holderCopyright International Council for the Exploration of the Sea 2019. All rights reserveden_US
dc.identifier.doihttps://doi.org/10.1093/icesjms/fsz155
dc.identifier.cristin1715714
dc.source.journalICES Journal of Marine Science
dc.relation.projectAndre: Ministry of Science and Technology, Taiwan
dc.relation.projectNorges forskningsråd: 288037
dc.relation.projectNorges forskningsråd: 255530
dc.relation.projectEC/H2020: 679812
dc.relation.projectAndre: MINISTRY OF SCIENCE AND TECHNOLOGY, TAIWAN


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