Marsh et al., 2008:

"The data generated by Marsh et al. 2007 using PBR modelling suggest annual sustainable anthropogenic mortality limits of 56 -112 dugongs in the Northern GBR (north of Cooktown). It is suggested that an annual sustainable anthropogenic mortality limit of 56 would be a prudent interim management target given the World Heritage Status of the region and the management objective of population recovery for dugongs in the GBRMP.

PBR modelling by the authors suggests annual sustainable anthropogenic mortality limits of about 100-200 dugongs per year for Torres Strait depending on the value given to the Recovery Factor."

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Citation and/or URL

Marsh, H., Hodgson, A., Lawler, I.R., Grech, A. & Delean, S. 2008, Condition, status and trends and projected futures of the dugong in the northern Great Barrier Reef and Torres Strait: including identification and evaluation of the key threats and evaluation of available management options to improve its status, Reef and Rainforest Research Centre on behalf of the Australian Government’s Marine and Tropical Sciences Research Facility., Marine and Tropical Sciences Research Facility Report: , Cairns, Australia

Spatial Coverage

Cooktown, Queensland north to Torres Strait (some data for Hervey Bay, Queensland)

Temporal Coverage

1987 - 2006

Update Frequency

Surveys conducted every 5 years

Other Information

Grech, A. & Marsh, H. 2007. Prioritising areas for dugong conservation in a marine protected area using a spatially explicit population model. Applied GIS 3(2): 1-14