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dc.contributor.authorKolding, Jeppe
dc.contributor.authorJacobsen, Nis S.
dc.contributor.authorAndersen, Ken Haste
dc.contributor.authorZwieten, Paul A.M. van
dc.date.accessioned2016-01-29T09:09:25Z
dc.date.available2016-01-29T09:09:25Z
dc.date.issued2015
dc.PublishedCanadian Journal of Fisheries and Aquatic Sciences 2015eng
dc.identifier.issn1205-7533en_US
dc.identifier.urihttp://hdl.handle.net/1956/11024
dc.description.abstractUnder the ecosystem approach to fisheries, an optimal fishing pattern is one that gives the highest possible yield while having the least structural impact on the community. Unregulated, open-access African inland fisheries have been observed to sustain high catches by harvesting a broad spectrum of species and sizes, often in conflict with current management regulations in terms of mesh and gear regulations. Using a size- and trait-based model, we explore whether such exploitation patterns are commensurable with the ecosystem approach to fisheries by comparing the impacts on size spectrum slope and yield with the different size limit regimes employed in the Zambian and Zimbabwean sides of man-made Lake Kariba. Long-term multispecies data under fished and unfished conditions are used to compare and validate the model results. Both model and observations show that the highest yields and low structural impact on the ecosystem are obtained by targeting small individuals in the community. These results call for a re-evaluation of the size-based management regulations that are ubiquitous in most fisheries.en_US
dc.language.isoengeng
dc.publisherNRC Research Pressen_US
dc.rightsAttribution CC BYeng
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/deed.en_GBeng
dc.titleMaximizing fisheries yields while maintaining community structureen_US
dc.typePeer reviewed
dc.typeJournal article
dc.date.updated2015-12-22T13:16:51Z
dc.description.versionpublishedVersionen_US
dc.rights.holderCopyright 2015 The Authorsen_US
dc.identifier.doihttps://doi.org/10.1139/cjfas-2015-0098
dc.identifier.cristin1293144


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