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Dugong hunting has been practised in Wide Bay–Burnett in Queensland since at least 1861. Commercial netting began in 1924. Commercial netting began in 1924. The dugong was a prized source of oil, hide, and meat, and charcoal from their bones was used in sugar refining. [ 3 ]
The dugong (/ ˈ d (j) uː ɡ ɒ ŋ /; Dugong dugon) is a marine mammal.It is one of four living species of the order Sirenia, which also includes three species of manatees.It is the only living representative of the once-diverse family Dugongidae; its closest modern relative, Steller's sea cow (Hydrodamalis gigas), was hunted to extinction in the 18th century.
Dugong skeleton displayed at Philippine National Museum. Dugongidae's body weight ranges from 217 to 307 kg for juveniles, 334 to 424 kg for subadults, and 435 to 568.5 kg for adults. Oral temperatures for individual dugongs is determined from 24° to 34.2 °C. Heart rate readings are from 40 to 96 bpm and vary between individual dugongs.
In other dugong populations in western and eastern Australia, there is evidence that dugongs actively seek out large invertebrates. [ 39 ] Populations of Amazonian manatees become restricted to lakes during the July–August dry season when water levels begin to fall, and are thought to fast during this period.
FILE - Serena, a dugong, swims at the Toba Aquarium in Toba, Japan on Sept. 5, 2012. Populations of the vulnerable species of marine mammal, numerous species of abalone and a type of Caribbean ...
A fossil reveals how a now-extinct species of dugong was swimming in the sea about 15 million years ago when it was preyed upon by a crocodile and a tiger shark.
The family has one surviving species, the dugong (Dugong dugon), one recently extinct species, Steller's sea cow (Hydrodamalis gigas), and a number of extinct genera known from fossil records. Subcategories
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