Dugongs 2019

Location: – Level 2 Maternity & Children’s ward
Artist: Katrina Elliott

Dugongs – Artist Katrina Elliott

The dugong or seacow live right on our door step. These herbivorous mammals with
paddle-like flippers, fluked tail and portly body can measure up to 3 metres long and
sometimes weighing over 500 kilograms. Dugongs love seagrass and on average eat
about 28 kilograms every day. Two of the most favourite grasses are Paddleweed
(Halophila ovalis) and Eelgrass (Zostera muelleri subsp. capricorni).

A seagrass meadow is the most likely place to spot a dugong in the waters near
Gladstone. Dugongs are generally sighted feeding in water that is less than 10 metres
deep and protected from winds and waves. Rodds Bay to Friend Point is a special
Dugong Protection Area that has restrictions on activities that are dangerous to
dugongs, like net fishing.

Most dugongs mate in later winter and spring and give birth between spring and
summer when the water is warmest. They are slow to mature with females aged
between 7 to 17 years when they have their first calf and have a gestation period of up
to 14 months. Calves feed on their mother’s milk for at least 18 months, but
also start eating seagrass at a very young age. They stay close to their mothers for up
to two years (or longer), usually swimming behind them and communicating with their
unique sounds.

The Queensland Government’s Nature Conservation (Wildlife) Regulation 2006 lists
dugongs as ‘vulnerable to extinction’, meaning they likely face a high risk of extinction
in the wild in the longer term if we don’t look after them now.

Please remember that all drains lead to the ocean and that litter and pollution can
degrade or kill seagrass meadows – always put your rubbish in a bin and never pour
chemicals down the drain.

Leave a Reply

This site uses Akismet to reduce spam. Learn how your comment data is processed.

%d bloggers like this: