Part of dugong herd in Moreton Bay near Brisbane in 2003 Amanda Hodgson. How many dugongs could the seagrass habitats of the urban coast of Queensland support?. Helene Marsh, Glenn De’ath, Neil Gribble, Baden Lane. Marine Parks of urban coast of Queensland - .
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Part of dugong herd in Moreton Bay near Brisbane in 2003 Amanda Hodgson
How many dugongs could the
seagrass habitats of the urban
coast of Queensland
Helene Marsh, Glenn De’ath, Neil Gribble, Baden Lane
Contemporary photograph of dugongs in Moreton Bay
Jackson et al’s population estimate of 1.1 to 3 million dugongs
for entire east coast of Queensland in 1890s(Science 2001)
touted as realistic recovery target and
evidence that Moreton Bay
2/3 way to Ecological Extinction (Pandolfi et al. Science 2003)
Queensland Shark Amanda Hodgson
0-3 nets at
47 beaches at
Dugong by-catch Amanda Hodgson
in the shark nets
declined at rate of
8.7% (95% CI = 7.1, 10.6) p.a.
to 3.1% (1.4, 6.1) of initial
catch rates by 1999
Aerial surveys Amanda Hodgson
Captive dugongs gain Amanda Hodgson
weight on 28-40 kg
wet weight seagrass per day
Data from McKenzie et al. and Abal and Dennison
Photograph by Jane Mellors off Townsville C-Bar
Have a drink and watch the dugongs!