Coral IVF

Pioneering science delivers new life to the Reef.

Coral IVF

Our Reef is the largest living thing on Earth, with rich corals spanning an area visible from space. But it’s facing a growing combination of threats and without help the outlook is bleak. Saving the Reef is a huge task, but there is hope.

#The project

In a world-first, our researchers are successfully undertaking small-scale coral restoration using a technique dubbed Coral IVF.

Coral only spawns once a year in a natural phenomenon that has been described as an underwater snowstorm with millions of tiny little dots being released into the water.

During this event, our researchers capture the coral eggs and sperm from healthy reefs to rear millions of baby corals in specially-designed enclosures on the Reef, and in tanks, before delivering them onto small areas of damaged reefs to restore and repopulate them. 

The baby corals settle onto those reefs and in years to come they will spawn and produce their own coral babies, re-establishing the breeding population of damaged reefs. Excitingly, a number of Coral IVF babies we planted in 2017 have already reached maturity and are producing healthy offspring. 

The success of this world-leading research not only applies to the Great Barrier Reef but to all coral reefs around the world. We can start to restore and repair damaged coral populations where the natural supply of coral larvae has been compromised.

Our research team, led by Southern Cross University’s Professor Peter Harrison, pioneered this innovative technique for the first time on Heron Island in 2016, returning the following year to review the progress and deliver more coral babies. A true innovator in his field, Professor Harrison co-discovered the phenomenon of mass coral spawning more than 35 years ago. 

The team has since expanded the research to other parts of the Reef, with research and trials ongoing each spawning season as part of the world’s largest coral reefs program.

#The process

1. Floating nurseries prepared

1. Floating nurseries prepared

Coral spawning

2. Natural mass coral spawning event occurs

3. Spawn collected

3. Spawn collected

4. Grows into larvae over days

4. Grows into larvae over days

5. Coral larvae delivered onto damaged reefs

5. Coral larvae delivered onto damaged reefs


Robot delivers coral babies

#Robot delivers coral babies

In another world first, ecology and technology are combined each spawning season, to give nature a helping hand with a robot that delivers coral IVF babies onto damaged reefs.

The amazing Reef Rangerbot was modified to become ‘LarvalBot’ which delivered new coral larvae directly onto the Great Barrier Reef. The combination of Southern Cross University’s Coral IVF and QUT’s RangerBot won the Foundation’s Out of the Blue Box Reef Innovation Challenge supported by The Tiffany & Co. Foundation.

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#The process

Spawn attached to LarvalBot

Spawn attached to LarvalBot

Coral babies dispersed onto damaged Reef

Coral babies dispersed onto damaged Reef


#Meet Reef Rangerbot

RangerBot

RangerBot

The world's first autonomous underwater drone dedicated to Reef protection.

#Project gallery



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#Project partners

Queensland University of Technology
Southern Cross University

The 2018 Larval Restoration Project (an Advance Queensland Small Business Innovation Research initiative funded by the Queensland and Australian Governments) is a large scale collaboration involving researchers Peter Harrison (Southern Cross University), Katie Chartrand (James Cook University) and David Suggett (University of Technology Sydney), the Great Barrier Reef Marine Park Authority, Queensland Parks & Wildlife Service, Aroona Boat Charters, Argo Expeditions, Biopixel, Reef Magic, Citizens of the Great Barrier Reef, Yirrganydji Land and Sea Rangers, Gunggandji Land and Sea Rangers, Cairns Marine, QUT and the Great Barrier Reef Foundation.