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  • Impacts of fishing low-trophic level species on marine ecosystems

    Author(s)
    Smith, Anthony DM
    Brown, Christopher J
    Bulman, Catherine M
    Fulton, Elizabeth A
    Johnson, Penny
    Kaplan, Isaac C
    Lozano-Montes, Hector
    Mackinson, Steven
    Marzloff, Martin
    Shannon, Lynne J
    Shin, Yunne-Jai
    Tam, Jorge
    Griffith University Author(s)
    Brown, Chris J.
    Year published
    2011
    Metadata
    Show full item record
    Abstract
    Low–trophic level species account for more than 30% of global fisheries production and contribute substantially to global food security. We used a range of ecosystem models to explore the effects of fishing low–trophic level species on marine ecosystems, including marine mammals and seabirds, and on other commercially important species. In five well-studied ecosystems, we found that fishing these species at conventional maximum sustainable yield (MSY) levels can have large impacts on other parts of the ecosystem, particularly when they constitute a high proportion of the biomass in the ecosystem or are highly connected in ...
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    Low–trophic level species account for more than 30% of global fisheries production and contribute substantially to global food security. We used a range of ecosystem models to explore the effects of fishing low–trophic level species on marine ecosystems, including marine mammals and seabirds, and on other commercially important species. In five well-studied ecosystems, we found that fishing these species at conventional maximum sustainable yield (MSY) levels can have large impacts on other parts of the ecosystem, particularly when they constitute a high proportion of the biomass in the ecosystem or are highly connected in the food web. Halving exploitation rates would result in much lower impacts on marine ecosystems while still achieving 80% of MSY.
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    Journal Title
    Science
    Volume
    333
    Issue
    6046
    DOI
    https://doi.org/10.1126/science.1209395
    Subject
    Ecological Applications not elsewhere classified
    Publication URI
    http://hdl.handle.net/10072/173602
    Collection
    • Journal articles

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