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dc.contributor.authorPlank, Michael J
dc.contributor.authorKolding, Jeppe
dc.contributor.authorLaw, Richard
dc.contributor.authorGerritsen, Hans D
dc.contributor.authorReid, David
dc.date.accessioned2018-09-20T16:21:44Z
dc.date.available2018-09-20T16:21:44Z
dc.date.issued2016-07-14
dc.identifier.citationPlank, Michael J; Kolding, Jeppe; Law, Richard; Gerritsen, Hans D; Reid, David (2016). Balanced harvesting can emerge from fishing decisions by individual fishers in a small-scale fishery. Fish and Fisheries 18 (2), 212-225
dc.identifier.issn1467-2960
dc.identifier.urihttp://hdl.handle.net/10379/13492
dc.description.abstractCatching fish in proportion to their productivity, termed balanced harvesting, has been suggested as a basis for the ecosystem approach to fishing. Balanced harvesting has been criticized as uneconomical and unachievable because of the level of micromanagement it would require. Here, we investigate the consequences of allowing a fixed number of fishers in a small-scale fishery to choose what size fish to attempt to catch. We examine this from a game-theoretic perspective and test our predictions using an agent-based model for fishers' decisions coupled with a size-spectrum model for the dynamics of a single fish species. We show that smallscale gillnet fishers, operating without size-based regulations, would end up catching small and large fish in proportion to their productivity, in other words balanced harvesting. This is significant because it shows that, far from being unachievable, balanced harvesting can emerge without external intervention under some circumstances. Controls are needed to prevent overfishing, but minimum size regulations alone are not sufficient to achieve this, and actually reduce the sustainable yield by confining fishing to a relatively unproductive part of the size-spectrum. Our findings are particularly relevant for small-scale fisheries in areas where there is poverty and malnutrition because here provision of biomass for food is more important than the market value of the catch.
dc.publisherWiley-Blackwell
dc.relation.ispartofFish and Fisheries
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Ireland
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/3.0/ie/
dc.subjectbalanced harvesting
dc.subjectideal free distribution
dc.subjectnash equilibrium
dc.subjectproductivity
dc.subjectsize-spectrum
dc.subjectsmall-scale fisheries
dc.subjectideal free distribution
dc.subjectsize-spectra
dc.subjectceltic sea
dc.subjectmanagement
dc.subjectmodels
dc.subjectdynamics
dc.subjectindicators
dc.subjectchallenges
dc.subjectpredation
dc.subjectpatterns
dc.titleBalanced harvesting can emerge from fishing decisions by individual fishers in a small-scale fishery
dc.typeArticle
dc.identifier.doi10.1111/faf.12172
dc.local.publishedsourcehttp://eprints.whiterose.ac.uk/109433/1/RL_Fish_and_Fisheries_version_accepted.pdf
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Attribution-NonCommercial-NoDerivs 3.0 Ireland
Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivs 3.0 Ireland