Corals glow in neon shades during a 2010 bleaching episode at Palawan, Philippines.
Ryan Goehrung/University of Washington.
While most corals turn ghostly white when they bleach, some turn neon purple. Scientists were baffled – until now.
Future extremes from the Indian Ocean will be acting on top of global warming, giving a double whammy effect, like the record-breaking heat and drought we saw in 2019.
Two adult seahorses living on the seahorse hotels four months after the hotels were deployed.
White's seahorse in Sydney uses seahorse hotels as temporary residence while their natural habitats recover.
A researcher completing bleaching surveys in the southern Great Barrier Reef after a major bleaching event.
ARC CENTRE OF EXCELLENCE FOR CORAL REEF STUDIES
Few feel the pain of the Great Barrier Reef's decline more acutely than the scientists trying to save it. Ahead of a UN climate summit, two researchers write of their grief, and hope.
Resilient corals are offering hope for bleached reefs.
How super is a super coral? And what are they super at? Protecting our coral reefs means we need to find out.
Frank Hurley, fish underwater, 1922. Coloured lantern slide.
Australian Museum AMS320/V3242
In the days before scuba technology, the celebrated photographer sought to capture the beauty of the reef by placing corals in an aquarium and shooting them. But under stress, they released algae.
Bleached staghorn coral on the Great Barrier Reef. Many species are dependent on corals for food and shelter.
Corals, mangroves and seagrass habitats have been affected by extreme weather events, and some may never recover.
Tourists are experiencing ‘Reef grief’.
Severe coral bleaching may have been the crucial factor in bringing home the reality of climate change for many people.
The coral reef of Rarotonga helped scientists create a better climate history.
El Niño events can affect millions of people around the world, causing drought in Australia and floods in the Americas.
After repeated bleaching in 2016 and 2017 corals on the Great Barrier Reef are producing far fewer offspring.
Children play on a beach in Palau, in the western Pacific Ocean. The country was the first to place a sweeping ban on sunscreen to protect its reefs.
(AP Photo/Itsuo Inouye)
As the mid-winter break draws crowds to beaches, tourists may be wondering if their sunscreen is toxic to coral reefs.
Keep slip slop slapping this summer.
Despite bans around the world, there's no empirical evidence sunscreens cause coral bleaching.
Some tropical frogs may be developing resistance to a fungus that has devastated species like
Atelopus varius, the variable harlequin frog.
A look at new research published in 2018 on fossa, deepsea corals and tropical frogs developing resistance to a deadly fungus.
A healthy coral reef on Millennium Atoll, Southern Line Islands.
Field samples, satellite measurements and isotopic data have shed new light on corals' eating habits.
Researching the most resilient corals could help us find ways to better protect reefs in the future.
Building an artificial reef.
Coral reefs are in crisis around the world, and may disappear entirely. 3D printing is a new idea to help them – but it won't be a cure all.
acro_phuket / shutterstock
Scientists have used 'tree rings' in coral to identify centuries of stress.
Staghorn and tabular corals suffered mass die-offs, robbing many individual reefs of their characteristic shapes.
ARC Centre of Excellence for Coral Reef Studies/ Mia Hoogenboom
The 2016 bleaching event resulted in 30% mortality on the Great Barrier Reef, with many corals dying of the heat before they bleached and the loss of branching corals creating less complex reef structure.
Researchers studied reef sands at Heron Island, Hawaii, Bermuda and Tetiaroa. In this photo, white areas show the predominance of sand on reefs.
Southern Cross University
Ocean acidification poses an increasing threat to the sediments that form the framework of coral reefs - within around 30 years, these carbonate sands may no longer be able to form.
Coral reefs are some of the most diverse ecosystems in the world.
If researchers shared their data, we could take a big step towards saving the world's coral reefs.