Blood reveals Great Barrier Reef sharks as homebodies

Small Australian sharks have been exposed as bigger homebodies than previously thought, in a study that took an existing chemical tracking technique and made it work for Great Barrier Reef sharks.

Dr Sam Munroe in the field
Dr Sam Munroe working in the field, Cleveland Bay, Queensland

The study found that the travel history of the Australian sharpnose shark was written in their blood—with chemical ‘fin-prints’ showing they tended to stay within smaller areas than previously believed.

“Small-bodied sharks that are both predator and prey, such as the Australian sharpnose, may be particularly important links between food webs,” says lead researcher Dr Sam Munroe, who studied the sharks while at James Cook University in Townsville.

“Information on their movements can improve our understanding of how the ecosystems function, while also helping us predict species most at risk from the impacts of a changing environment.”

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Looking for dark matter in a gold mine

Deep underground in rural Victoria, Matteo Volpi is searching for evidence of the cosmic glue that holds the Universe together: dark matter.

Matteo is taking the initial measurements for the study at Stawell Gold Mine where an international team is set to construct a $3.5 million laboratory more than a kilometre underground.

Matteo Volpi is looking for dark matter in the Stawell Gold Mine. Credit: Michael Slezak
Matteo Volpi is looking for dark matter in the Stawell Gold Mine. Credit: Michael Slezak

Understanding dark matter is regarded as one of the most important questions of modern particle physics.

“If we nail it, it’s a Nobel Prize– winning experiment,” says the project leader Elisabetta Barberio, a University of Melbourne physicist and chief investigator of the Australian Research Council Centre of Excellence for Particle Physics at the Terascale (CoEPP).

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Power to the islands

Over sixty-five million Indonesians live off the grid. But what does that mean in the era of micro-grids, batteries and efficient solar panels? And how do communities change with 24/7 energy?

Providing reliable electric power is one of the keys to unlocking the potential of the remote islands and landlocked areas of Indonesia and of Australia’s north, a priority for both countries.

But there’s much more to it than installing the right mix of technologies. Bringing night-time activity, television, the internet and smart machines within the reach of people who have never had access to them before involves huge, potentially disruptive changes to their daily lives, their economic and political relationships, their whole culture.

Access to new technologies may have huge impacts on behaviour. Credit: Max Richter
Access to new technologies may have huge impacts on behaviour. Credit: Max Richter

A team of Australian and Indonesian scientists and social scientists is coming to grips with the scope of the problem by studying two sites in Indonesia where a start has already been made on introducing electricity. The seed project is financed by the Australia Indonesia Centre. 

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Who cares about the blobfish?

Hugh Possingham and his team are making conservation more efficient. They’re helping to save less fashionable threatened species by getting more bang for the bucks donated to cute and cuddly species.

The team of ecologists and mathematicians in the Australian Research Council Centre of Excellence in Environmental Decisions (CEED) worked with the New Zealand government to assess how to better spend money that is donated to conservation. They’ve shown that by protecting habitats shared by several different species, the money donated to charismatic ones can be stretched further to save other species as well.

Could this koala help save less cute species? 9credit: Liana Joseph
Could this koala help save less cute species? (credit: Liana Joseph)

“The way we currently attempt to save species is inefficient, choosing species that are popular or charismatic, like koalas and tigers, over those that are less well known or even ugly, like the blobfish,” says Hugh, ARC Laureate Fellow and Director of CEED.

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Which prostate cancers can be left alone?

Only 10 per cent of prostate cancers are lethal, but which ones? Australian researchers have tracked the mutations that drive the cancer to spread through the body, and eventually become lethal.

Bioinformaticians can use Circos plots to visualise how cancer genomes differ from healthy ones. Credit: Peter Casamento
Bioinformaticians can use Circos plots to visualise how cancer genomes differ from healthy ones. Credit: Peter Casamento

The research shows they can be detected in the original tumour and even in blood samples. Testing the DNA of prostate cancer cells may help clinicians in the future identify which cancers need to be urgently removed and which ones might simply be monitored.

“Some advanced cancer cells evolve the ability to break away from their original location, travel through the bloodstream and create secondary tumours in another part of the body,” explains Clare Sloggett, Bioinformatician and Research Fellow at the Victorian Life Sciences Computation Initiative (VLSCI). “Cells in this state of metastasis are the most deadly.”

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Brain training to give tendon pain the boot

Footy player, netballer and ballet dancer available for interview

Re-training the brain with painless exercises may be the key to stopping recurring tendon pain, according to Melbourne researchers.

Dr Ebonie Rio
Dr Ebonie Rio

AFL, basketball and netball players are the major sufferers, with tendon pain in the knee debilitating and long-lasting. The injury can sideline a player or cause them to give up the sport entirely.

“More than 50 per cent of people who stop sport because of tendon pain still suffer from that pain 15 years later,” says Dr Ebonie Rio of the Monash University Tendon Research group.

“Our simple exercise is revolutionising how we treat tendinopathy.”

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