Word on the Reef

Reef and Rainforest tour guide Steven Gill is on a mission to bug you... in the best possible way. Armed with a camera, a handful of LEGO bricks and an infectious love for the tiny creatures we usually overlook, he's proving that the smallest critters often have the biggest personalities. Along the way we'll meet Katy Perry, get business advice from a cleaner wrasse, and explore the surp...

Fifty shades of coral? Not quite... but those colours tell an incredible story. This week we're diving into CoralWatch , the world's longest-running DIY reef science project. Discover how anyone with a mask, a colour chart and a love of coral can help scientists monitor reef health. Diana Kleine from the University of Queensland (pictured in the episode thumbnail image) joins us to prove...

Scientists have discovered that marine species are migrating away from the equator at a rate of 40 to 70 kilometres per decade to get to cooler waters as climate change heats up our ocean. But far from being a viable escape plan, this mass poleward relocation of marine life is opening up a sea of problems. On this week's episode of Word on the Reef, hosts Tanya Murphy and Brett Goodban are jo...

Every year up to 7,000 tons of seafood is caught on the Great Barrier Reef, while up to 190 tons of coral is collected for the international aquarium trade. But how sustainable are these fisheries? And as consumers, how can we make sure we're making Reef-friendly choices? In this episode of Word on the Reef, Simon Miller from the Australian Marine Conservation Society joins hosts Tanya Murphy...

Did you know that some Great Barrier Reef fish species are spending part of their life cycle in the middle of our city? That's right, marine fish species could be as close as your nearest concrete storm water drain, swimming among abandoned shopping trolleys and discarded beer bottles. In fact, recent research has found more than 60 species of native fish in these waterways. On todays' e...

For 65,000 years before computers, satellites, and scientific journals, Australia's first peoples were reading tides, stars, seasons, animal behaviour, currents, and ecosystems with extraordinary precision. Yet until recently, their knowledge was not formally considered alongside Western Science. Now, more research and conservation organisations are recognising that in order to protect places...

In 2022, a mass stranding of more than 600 sick turtles devastated Hervey Bay in South East Queensland. As volunteers worked tirelessly to rescue them, scientists got to work on solving the puzzle: what caused this disaster? Dr Caitlin Smith is one of the scientists racing to unravel the threats facing our sea turtles before it’s too late. Her work has seen her fearlessly leaning out of helicopter...

Professor Kathy Townsend knew she wanted to be a marine biologist from the age of five, and completed her very first dive in a frozen Canadian lake. But it was the moment a five-metre manta ray draped its tail over her shoulder like an affectionate cat that she knew she had truly found her calling. Since then, Kathy has followed manta rays around the world, appeared in a documentary with Sir David...

When Professor Helene Marsh first began researching dugongs on the Great Barrier Reef, the only ones she encountered were dead - tangled in fishing nets. Then, in the 1990s, Queensland became the centre of a fierce conservation battle known as the “Dugong Wars”. No torpedoes were fired, but the conflict between marine scientists, industry groups and governments was intense, as researchers like Pro...

He's broken several world records: largest group skydive, longest scuba dive on a single tank—and the most species of nudibranchs ever found on a single dive (71). He's spent 23 years chasing these tiny creatures, building a global following of more than 60,000 people who are equally obsessed. But what even is a nudibranch—and why are thousands of people going nuts over them? Well, they...

The UNESCO World Heritage Committee is concerned about the Great Barrier Reef - warning Australia to do more to protect it or risk an “In Danger” listing. So how serious is this threat, and are governments doing enough to respond? This week we're joined by marine ecologist Dr Lissa Schindler from the Australian Marine Conservation Society to unpack what’s behind UNESCO’s warnings - and what w...

Critics said it would never work. But after 30 years of surveying reefs the hard way - diving with a slate and pencil - marine ecologist Brett Kettle knew there had to be a better way. So he built one. In this episode of Word on the Reef, Tanya Murphy sits down with Brett and the team behind Flying Fish Technologies to reveal the Vertigo 3 Glider—an underwater drone that could revolutionise how we...

What has eyes on the tips of its 20 arms, venomous spines, is almost impossible to kill — and is munching the world’s largest reef? Meet the crown-of-thorns starfish. Professor Morgan Pratchett has spent years studying this formidable predator. He’s been on the pointy end of one more than once — and lived to tell the tale. In this episode, he reveals new research that could help tackle this army o...

As climate change, coral bleaching and biodiversity loss dominate the news, many people are experiencing something psychologists now call eco-grief or climate anxiety — the emotional response to witnessing environmental change. To unpack the connection between mental health, climate change and our relationship with nature - this week we're joined by Dr Chloe Watfern , an artist and postdoctor...

Did you know coral skeletons contain a record of every flood event in Queensland since 1648? We often hear that climate and water pollution conditions on the Great Barrier Reef have changed dramatically since pre-industrial times. But how do we actually know that? After all, weather records only stretch back just over a century, and systematic water quality monitoring only began in the 1980s. The...

For thousands of years, the Great Barrier Reef has had the power to regenerate itself — so until 2017, coral transplantation was illegal. The rule was simple: let nature recover itself. Then mass bleaching events driven by global warming changed everything. This summer, scientists released tens of thousands of baby corals - attaching them to ceramic stars and dropping them from boats in a bid to b...

Our oceans are 40% more acidic than pre-industrial times, making it harder for corals, molluscs, crustaceans and plankton to build their calcium carbonate skeletons. It's a crucial planetary boundary we've crossed — threatening reefs, fisheries, tourism, food security, and coastal communities. And almost no one is talking about it. So what’s driving it? What does it mean for the Great Ba...

CSIRO scientists have discovered a massive underwater mountain, shaped like a half-eaten flan, rising 3,000 metres from the seafloor off the coast of North Queensland. That's taller than Australia’s highest mainland peak, Mount Kosciuszko. And it’s teeming with life. To guide us on a deep dive into this 40-million-year-old extinct volcano and its flantastic inhabitants, our guest on Word on t...

Have you ever felt confused by conflicting media reports about the health of the Great Barrier Reef? If so, you're not alone. New research shows news coverage has often failed to clearly communicate the risks climate change poses to the reef, sometimes fuelling misinformation and climate denial. So what's really happening on the Great Barrier Reef? To help unpack this, our guest today is...

What do the world's largest flying bird, with a wingspan of up to 3.5 metres, and the Australian Sea Lion have in common? Both are endangered due to their high risk of entanglement in fishing nets! Today's guest, Zoologist Alexia Wellbelove gives us a birds-eye view on how changes to fishing practices can help bring Albatrosses and Sea Lions back from the brink. We'll also unpack re...

What do the Egyptian Pyramids, the Greek Parthenon, the Notre Dame Cathedral and Melbourne's Parliament House all have in common? They are all built out of fossilised reefs, aka limestone! Today we’re taking a journey through deep lime - I mean time - to answer some of those burning questions like: How old is the Great Barrier Reef? What ancient forces built this coral colossus? Why are there...

Pigs can't fly, nor can they dive in the ocean. But they are posing a serious threat to endangered sea turtles by pigging out on turtle eggs and hatchlings in Cape York. This is not the good kind of bacon and eggs combo. It's Ham-ageddon for our nesting sea turtles! Cape York Natural Resource Management representatives Dr Manuela Fischer and Scott Morrison (no relation to the former Aust...

As the planet warms, more than 3000 sea turtle eggs have been evacuated from low-lying Raine Island on the Great Barrier Reef to save them from rising sea levels. It's an emergency intervention never attempted before on the Great Barrier Reef. But can the eggs survive the relocation? And what does this egg-sistential crisis mean for the future of our sea turtles and other island-dwelling anim...

Did you know Australia has one of the highest deforestation rates in the developed world? About 20% of Queensland's vegetation has been bulldozed since colonisation -- one million hectares in the last three years alone -- mainly for cattle farming. What impact is this having on the Great Barrier Reef, and what can we do to fix it? To find out, this week we're chatting with Dr Maximilian...

Spring has sprung and it’s baby-making season on the Great Barrier Reef! In this episode we talk coral spawning with marine scientist Dr Katie Chartrand, plus, we dive into the world of mangrove forests with CAFNEC's Shannon Bredeson . More information: JCU Tropwater Spawning School CAFNEC's Mangrove Watch Program Support the show Help Keep Word on the Reef Afloat! Please take 2 minutes...