Does aquaculture add resilience to the global food system?

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cg.contributor.affiliationRoyal Swedish Academy of Sciencesen
cg.contributor.affiliationWorldFishen
cg.contributor.crpLivestock and Fish
cg.howPublishedFormally Publisheden
cg.identifier.doihttps://doi.org/10.1073/pnas.1404067111en
cg.isijournalISI Journalen
cg.issn1091-6490en
cg.issue37en
cg.journalProceedings of the National Academy of Sciences of the United States of Americaen
cg.subject.ilriFISHen
cg.subject.ilriFOOD SAFETYen
cg.subject.ilriRESEARCHen
cg.volume111en
dc.contributor.authorTroell, M.en
dc.contributor.authorNaylor, R.L.en
dc.contributor.authorMetian, M.en
dc.contributor.authorBeveridge, Malcolm C.M.en
dc.contributor.authorTyedmers, P.H.en
dc.contributor.authorFolke, C.en
dc.contributor.authorArrow, K.J.en
dc.contributor.authorBarrett, S.en
dc.contributor.authorCrepin, A.S.en
dc.contributor.authorEhrlich, P.R.en
dc.contributor.authorGren, A.en
dc.contributor.authorKautsky, N.en
dc.contributor.authorLevin, S.A.en
dc.contributor.authorNyborg, K.en
dc.contributor.authorOsterblom, H.en
dc.contributor.authorPolasky, S.en
dc.contributor.authorScheffer, M.en
dc.contributor.authorWalker, B.H.en
dc.contributor.authorXepapadeas, T.en
dc.contributor.authorZeeuw, A. deen
dc.date.accessioned2015-04-19T10:40:35Zen
dc.date.available2015-04-19T10:40:35Zen
dc.identifier.urihttps://hdl.handle.net/10568/65121
dc.titleDoes aquaculture add resilience to the global food system?en
dcterms.abstractAquaculture is the fastest growing food sector and continues to expand alongside terrestrial crop and livestock production. Using portfolio theory as a conceptual framework, we explore how current interconnections between the aquaculture, crop, livestock, and fisheries sectors act as an impediment to, or an opportunity for, enhanced resilience in the global food system given increased resource scarcity and climate change. Aquaculture can potentially enhance resilience through improved resource use efficiencies and increased diversification of farmed species, locales of production, and feeding strategies. However, aquaculture’s reliance on terrestrial crops and wild fish for feeds, its dependence on freshwater and land for culture sites, and its broad array of environmental impacts diminishes its ability to add resilience. Feeds for livestock and farmed fish that are fed rely largely on the same crops, although the fraction destined for aquaculture is presently small (∼4%). As demand for high-value fed aquaculture products grows, competition for these crops will also rise, as will the demand for wild fish as feed inputs. Many of these crops and forage fish are also consumed directly by humans and provide essential nutrition for low-income households. Their rising use in aquafeeds has the potential to increase price levels and volatility, worsening food insecurity among the most vulnerable populations. Although the diversification of global food production systems that includes aquaculture offers promise for enhanced resilience, such promise will not be realized if government policies fail to provide adequate incentives for resource efficiency, equity, and environmental protection.en
dcterms.accessRightsOpen Access
dcterms.audienceScientistsen
dcterms.available2014-08-18en
dcterms.bibliographicCitationTroell, M., Naylor, R.L., Metian, M., Beveridge, M., Tyedmers, P.H., Folke, C., Arrow, K.J., Barrett, S., Crépin, A.-S., Ehrlich, P.R., Gren, Å. , Kautsky, N., Levin, S.A., Nyborg, K., Österblom, H., Polasky, S., Scheffer, M., Walker, B.H., Xepapadeas, T., and Zeeuw, A. de. 2014. Does aquaculture add resilience to the global food system? PNAS 111(37): 13257-13263en
dcterms.extentpp. 13257-13263en
dcterms.issued2014-09-16en
dcterms.languageen
dcterms.licenseCopyrighted; all rights reserved
dcterms.publisherNational Academy of Sciencesen
dcterms.subjectfood safetyen
dcterms.subjectresearchen
dcterms.subjectfishen
dcterms.typeJournal Article

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