Sustainability of fishmeal in diets for salmon and trout: a meta-analysis

Ben Drakeford, Sean Pascoe

    Research output: Contribution to journalArticlepeer-review


    Intensive aquaculture, especially the production of carnivorous species requires artificial feeding. Marine proteins are preferred to vegetable proteins, since fishmeal and oil provide the essential nutrients required by farmed fish. Given the stagnant production of industrial species and the rapid increase in aquaculture production, fishmeal availability would pose a biological constraint on aquaculture contribution to world fish supplies in the future, unless alternative feed sources can be incorporated in diets. In this paper, the technical substitutability between fish and vegetable based feeds for salmon and trout are assessed through the estimation of Morishima elasticities of substitution. These are derived from a meta-analysis production function based on a large number of published feed trials. The results suggest that vegetable oil may be a potential substitute for fish oil, particularly in salmon aquaculture, but fishmeal is likely to remain a necessary component of feed unless some new feed source can be developed.
    Original languageEnglish
    Pages (from-to)155-175
    Number of pages21
    JournalAquaculture Economics & Management
    Issue number3
    Publication statusPublished - 1 May 2008


    • fishmeal
    • fish oil
    • meta-analysis
    • morishima elasticity of substitution
    • salmon
    • trout


    Dive into the research topics of 'Sustainability of fishmeal in diets for salmon and trout: a meta-analysis'. Together they form a unique fingerprint.

    Cite this