Dugong aerial survey, Gulf of Carpentaria, 2007

This survey provides the first synopsis of the distribution and abundance of the dugong in the Gulf of Carpentaria. The estimate of the dugong population in the Gulf of Carpentaria from the 2007 survey is much lower than previous estimates for the Northern Territory 16846 + 3259 in 1985 and 23336 + 3040 in 1994 and higher than the previous estimate for Queensland 4266 + 657 in 1997 (see Saalfeld and Marsh 2004). There are methodological reasons for these differences: (1) the methodology used to correct for availability bias was different for the 1991 and 1997 Queensland surveys; (2) the methodology used to correct for both availability and perception bias was different for the 1994 Northern Territory surveys; and (3) the previous surveys had been conducted at different times and so the results were likely confounded by movements between survey regions.

    Data Record Details
    Data record related to this publication Dugong aerial survey, Gulf of Carpentaria, 2007
    Data Publication title Dugong aerial survey, Gulf of Carpentaria, 2007
  • Description

    This survey provides the first synopsis of the distribution and abundance of the dugong in the Gulf of Carpentaria. The estimate of the dugong population in the Gulf of Carpentaria from the 2007 survey is much lower than previous estimates for the Northern Territory 16846 + 3259 in 1985 and 23336 + 3040 in 1994 and higher than the previous estimate for Queensland 4266 + 657 in 1997 (see Saalfeld and Marsh 2004). There are methodological reasons for these differences: (1) the methodology used to correct for availability bias was different for the 1991 and 1997 Queensland surveys; (2) the methodology used to correct for both availability and perception bias was different for the 1994 Northern Territory surveys; and (3) the previous surveys had been conducted at different times and so the results were likely confounded by movements between survey regions.

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    • Descriptor

      Please contact Helene Marsh Helene.Marsh@jcu.edu.au for GIS data. Funding for these surveys was obtained from the following government agencies: - Great Barrier Reef Marine Park Authority (GBRMPA), - Department of Environment and Resource Management (DERM), - Australian Marine Mammal Centre (AMMC), - Torres Strait Regional Authority (TSRA), - Australian Fisheries Management Authority (AFMA), - Marine and Tropical Sciences Research Facility (MTSRF), - National Environmental Research Program (NERP).

    • Descriptor type Note
    • Descriptor

      This dataset includes maps and reports.

    • Descriptor type Note
    • Descriptor
    • Descriptor type Full
  • Data type dataset
  • Keywords
    • abundance
    • marine biology
    • aerial survey
    • marine mammal
    • distribution
    • Gulf of Carpentaria
    • dugong
    • ARC Centre of Excellence for Coral Reef Studies
  • Funding source
  • Research grant(s)/Scheme name(s)
  • Research themes
    Tropical Ecosystems, Conservation and Climate Change
    FoR Codes (*)
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    Temporal (time) coverage
  • Start Date 2007/01/01
  • End Date 2008/01/01
  • Time Period
    Spatial (location) coverage
  • Locations
    • Gulf of Carpentaria, Mornington Islands, Queensland, Australia.
    Data Locations

    Type Location Notes
    Physical Location Dr Alana Grech, ARC Centre of Excellence for Coral Reef Studies, James Cook University, Townsville QLD 4811, Australia, Tel: +61 7 47815222
    Attachment Dugong_aerial_survey-Gulf_of_Carpentaria-2007-maps_and_report.zip
    The Data Manager is: Alana Grech
    College or Centre
    Access conditions Open: free access under license
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    Citation Grech, Alana; Marsh, Helene (2012): Dugong aerial survey, Gulf of Carpentaria, 2007. James Cook University. https://research.jcu.edu.au/data/published/b7433722e335c28c47658ff17d5f13e3