Mark Hamann

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Loggerhead turtle populations are facing a brighter future, but many other species are still in decline, while for others there are no data at all. AAP Image/Lauren Bath

We’ve only monitored a fraction of the Barrier Reef’s species

Mark Hamann, James Cook University and Andrew Chin, James Cook University

The Great Barrier Reef is home to some 1,600 species of bony fish, 130 sharks and rays, and turtles, mammals and more. Most have had no population monitoring, meaning we don’t know how well they are faring.
Don’t be fooled, this little guy will grow to be the largest turtle in the world. Flickr/Jennie - My Travels

Australian endangered species: Leatherback Turtle

Mark Hamann, James Cook University and Kimberly Riskas, James Cook University

Note: since publishing the Leatherback Turtle has been removed from the critically endangered list. It is now considered to be vulnerable. Leatherback turtles (Dermochelys coriacea) are the largest, oldest…
A female Hawksbill turtle nesting in northern Australia. Scott Whiting

Australian endangered species: Hawksbill Turtle

Mark Hamann, James Cook University and Kimberly Riskas, James Cook University

The Hawksbill Turtle (Eretmochelys imbricata) is one of the seven species of marine turtles and one of six in the family Cheloniidae. It is easily distinguished from other turtle species by its beak-like…

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