Providing a Knowledge Base for Implementing the National Partnership Approach to Marine Turtle and Dugong Management in the Gulf of Carpentaria by Integrating Traditional Knowledge and Western Science

Grech, Alana, Marsh, Helene, and Hamann, Mark (2009) Providing a Knowledge Base for Implementing the National Partnership Approach to Marine Turtle and Dugong Management in the Gulf of Carpentaria by Integrating Traditional Knowledge and Western Science. Report. UNSPECIFIED.

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Abstract

[Extract] Aerial surveys for turtles and dugongs conducted since the mid 1980s using standardised methodology have provided long-term information on the distribution and abundance of turtles and dugongs in the Gulf of Carpentaria. We used information collected from five aerial surveys spanning 16 years in conjunction with geostatistical techniques, including universal kriging, to develop spatial models of turtle and dugong distribution and relative density in the Gulf of Carpentaria. We categorised areas as of low, medium, medium-high or high ecological value for dugongs based upon the relative densities integrated across surveys. Our approach assumes that dugong density is a robust index of a region's value for dugongs. The model accounts for temporal changes in the use of various regions by dugongs including movements resulting from events such as seagrass dieback by integrating information across surveys.

Item ID: 16407
Item Type: Report (Report)
Date Deposited: 23 Jan 2013 02:52
FoR Codes: 05 ENVIRONMENTAL SCIENCES > 0502 Environmental Science and Management > 050201 Aboriginal and Torres Strait Islander Environmental Knowledge @ 50%
05 ENVIRONMENTAL SCIENCES > 0502 Environmental Science and Management > 050209 Natural Resource Management @ 50%
SEO Codes: 95 CULTURAL UNDERSTANDING > 9503 Heritage > 950302 Conserving Aboriginal and Torres Strait Islander Heritage @ 50%
96 ENVIRONMENT > 9609 Land and Water Management > 960903 Coastal and Estuarine Water Management @ 50%
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