Seasonal use of oceanographic and fisheries management zones by juvenile southern elephant seals (Mirounga leonina) from Macquarie Island

Iain Field, Corey Bradshaw, H Burton, Mark Hindell

    Research output: Contribution to journalArticleResearchpeer-review

    Abstract

    The foraging distribution of marine predator populations is important for effective modelling and management of pelagic marine systems. We tracked 31 juvenile southern elephant seals from Macquarie Island (158�57'E, 54�30'S) over their annual post-moult and mid-year trips to sea. We calculated the amount of time spent in regional fisheries management areas and within bounded oceanographic regions. During the austral summer, juvenile seals spent over 90% of their time south of the Antarctic Polar Front and ?80% within fisheries management regions [Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR) and exclusive economic zones]. In winter, seals spent ?75% of their time in the region bounded by the Antarctic Polar Front and the southern boundary of the Antarctic Circumpolar Current, and ?60% within fisheries management regions. The time spent per region differed significantly between summer and winter. Our results demonstrate that juvenile southern elephant seals from Macquarie Island spent more time south of the Antarctic Polar Front and within fisheries management areas than previously suspected. � Springer-Verlag 2004.
    Original languageEnglish
    Pages (from-to)432-440
    Number of pages9
    JournalPolar Biology
    Volume27
    Issue number7
    Publication statusPublished - 2004

    Fingerprint

    Earless Seals
    Mirounga leonina
    Fisheries
    fisheries management
    Islands
    seals
    Antarctic Regions
    winter
    summer
    Oceans and Seas
    molting
    Economics
    foraging
    predators
    economics
    Population

    Cite this

    Field, Iain ; Bradshaw, Corey ; Burton, H ; Hindell, Mark. / Seasonal use of oceanographic and fisheries management zones by juvenile southern elephant seals (Mirounga leonina) from Macquarie Island. In: Polar Biology. 2004 ; Vol. 27, No. 7. pp. 432-440.
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    title = "Seasonal use of oceanographic and fisheries management zones by juvenile southern elephant seals (Mirounga leonina) from Macquarie Island",
    abstract = "The foraging distribution of marine predator populations is important for effective modelling and management of pelagic marine systems. We tracked 31 juvenile southern elephant seals from Macquarie Island (158�57'E, 54�30'S) over their annual post-moult and mid-year trips to sea. We calculated the amount of time spent in regional fisheries management areas and within bounded oceanographic regions. During the austral summer, juvenile seals spent over 90{\%} of their time south of the Antarctic Polar Front and ?80{\%} within fisheries management regions [Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR) and exclusive economic zones]. In winter, seals spent ?75{\%} of their time in the region bounded by the Antarctic Polar Front and the southern boundary of the Antarctic Circumpolar Current, and ?60{\%} within fisheries management regions. The time spent per region differed significantly between summer and winter. Our results demonstrate that juvenile southern elephant seals from Macquarie Island spent more time south of the Antarctic Polar Front and within fisheries management areas than previously suspected. � Springer-Verlag 2004.",
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    author = "Iain Field and Corey Bradshaw and H Burton and Mark Hindell",
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    Seasonal use of oceanographic and fisheries management zones by juvenile southern elephant seals (Mirounga leonina) from Macquarie Island. / Field, Iain; Bradshaw, Corey; Burton, H; Hindell, Mark.

    In: Polar Biology, Vol. 27, No. 7, 2004, p. 432-440.

    Research output: Contribution to journalArticleResearchpeer-review

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    T1 - Seasonal use of oceanographic and fisheries management zones by juvenile southern elephant seals (Mirounga leonina) from Macquarie Island

    AU - Field, Iain

    AU - Bradshaw, Corey

    AU - Burton, H

    AU - Hindell, Mark

    PY - 2004

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    AB - The foraging distribution of marine predator populations is important for effective modelling and management of pelagic marine systems. We tracked 31 juvenile southern elephant seals from Macquarie Island (158�57'E, 54�30'S) over their annual post-moult and mid-year trips to sea. We calculated the amount of time spent in regional fisheries management areas and within bounded oceanographic regions. During the austral summer, juvenile seals spent over 90% of their time south of the Antarctic Polar Front and ?80% within fisheries management regions [Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR) and exclusive economic zones]. In winter, seals spent ?75% of their time in the region bounded by the Antarctic Polar Front and the southern boundary of the Antarctic Circumpolar Current, and ?60% within fisheries management regions. The time spent per region differed significantly between summer and winter. Our results demonstrate that juvenile southern elephant seals from Macquarie Island spent more time south of the Antarctic Polar Front and within fisheries management areas than previously suspected. � Springer-Verlag 2004.

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    KW - fishery modeling

    KW - foraging behavior

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    KW - pinniped

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    KW - Antarctic Circumpolar Current

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    KW - Pacific islands

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    KW - Southern Ocean

    KW - elephant

    KW - Mirounga leonina

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