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Not all salmon are created equal: Life cycle assessment (LCA) of global salmon farming systems
RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SIK – Institutet för livsmedel och bioteknik.ORCID iD: 0000-0002-0167-5603
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2009 (English)In: Environmental Science and Technology, ISSN 0013-936X, E-ISSN 1520-5851, Vol. 43, no 23, p. 8730-8736Article in journal (Refereed) Published
Abstract [en]

We present a global-scale life cycle assessment of a major food commodity, farmed salmon. Specifically, we report the cumulative energy use, biotic resource use, and greenhouse gas, acidifying, and eutrophying emissions associated with producing farmed salmon in Norway, the UK, British Columbia (Canada), and Chile, as well as a production-weighted global average. We found marked differences in the nature and quantity of material/energy resource use and associated emissions per unit production across regions. This suggests significant scope for improved environmental performance in the industry as a whole. We identify key leverage points for improving performance, most notably the critical importance of least-environmental cost feed sourcing patterns and continued improvements in feed conversion efficiency. Overall, impacts were lowest for Norwegian production in most impact categories, and highest for UK farmed salmon. Our results are of direct relevance to industry, policy makers, eco-labeling programs, and consumers seeking to further sustainability objectives in salmon aquaculture. © 2009 American Chemical Society.

Place, publisher, year, edition, pages
2009. Vol. 43, no 23, p. 8730-8736
Keywords [en]
Food Engineering
Keywords [sv]
Livsmedelsteknik
National Category
Food Science
Identifiers
URN: urn:nbn:se:ri:diva-8499DOI: 10.1021/es9010114PubMedID: 19943639OAI: oai:DiVA.org:ri-8499DiVA, id: diva2:966371
Available from: 2016-09-08 Created: 2016-09-08 Last updated: 2018-08-17Bibliographically approved

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Sonesson, UlfZiegler, Friederike

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