Christopher Brown

Scalloped hammerhead entangled in a Queensland shark control net at Magnetic Island, Townsville. Courtesy of Nicole McLachlan

Some sharks have declined by 92% in the past half‑century off Queensland’s coast

Some media have reported shark numbers at ‘plague proportions’ in Australian waters. But a new analysis suggests the opposite: species such as hammerheads and white sharks have plummeted in number.
Some fish fared better than others amid the extreme temperatures of the 2016 heatwave. Rick Stuart-Smith/Reef Life Survey

The 2016 Great Barrier Reef heatwave caused widespread changes to fish populations

The 2016 heatwave that caused mass bleaching on the Great Barrier Reef didn’t just kill corals - it also significantly changed the makeup of fish communities that call these reefs home.
Fishing of potato rock cod is totally banned in Queensland waters. Better regulation might avoid similar bans for other species. Mark Priest

How ecosystems can keep their fish, and we can eat them too

Tighter bag limits for fishing could be the key to ocean conservation, according to new research showing that limiting fishing across entire regions can offer better protection than using marine reserves…
In the Coral Triangle, conservation plans that helped fish were unfair for people. Zona Retiro/Flickr

Equity, economy or environment: you can’t have it all

You can’t get a project approved these days unless it satisfies the triple bottom line: equity, cost-effectiveness and environmental sustainability. But our research shows that getting all three is almost…

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