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Key Points

A groundbreaking study reveals selective breeding can significantly enhance coral survival during marine heatwaves. Researchers found that coral offspring with parents from warmer reef zones have double the heat tolerance compared to those from cooler regions. This discovery offers a potential short-term lifeline for endangered reef ecosystems facing unprecedented climate challenges. The research, conducted at Ningaloo Reef, provides hope for marine conservation efforts amid rapidly changing ocean conditions.

Key Points: Coral Breeding Breakthrough Offers Heat Resilience Hope

  • First successful Indian Ocean coral heat tolerance breeding study
  • Offspring from warmer zones show double survival rates
  • Urgent intervention needed to protect global reef systems
  • Breeding may provide short-term conservation strategy
2 min read

Selective breeding emerges as lifeline to boost coral resilience: Study

Scientists discover selective breeding technique that doubles coral survival rates during marine heatwaves, offering critical conservation strategy

"Coral babies with at least one parent from the warmer reef exhibited significantly higher survival rates - Kate Quigley, Minderoo Foundation"

Sydney, June 9

Selectively breeding corals can significantly boost their heat tolerance, offering a short-term lifeline for the world's endangered reef systems as ocean temperatures rise due to climate change, new research said on Monday.

Researchers successfully bred heat-tolerant corals at Ningaloo Reef, a World Heritage site off Australia's northwest coast. Like many others globally, the reef faces increasing threats from marine heatwaves and mass bleaching events, according to a release from Minderoo Foundation in Western Australia that supported the research project.

Coral offspring with at least one parent from warmer reef zones had double the survival rate under extreme heat stress compared to those from cooler regions, said the team at Minderoo Foundation, alongside partners from the University of Western Australia, James Cook University in Queensland, the University of Bremen in Germany, and Texas A&M University in the United States.

"Coral babies with at least one parent from the warmer reef exhibited significantly higher survival rates under heat stress," said Kate Quigley, Principal Research Scientist at Minderoo Foundation.

"This marks the first successful demonstration of how selectively breeding Indian Ocean corals can boost heat tolerance and signals a crucial tool to aid reef survival in the short term," said Australian businessman Andrew Forrest, co-founder of the Minderoo Foundation.

"The world must arrest warming ocean temperatures urgently or face the very real prospect of the death of a majority of coral reefs globally within 50 years," Forrest said.

The findings come as mass bleaching events have affected 84 per cent of the world's reefs across at least 82 countries and territories since 2023, Xinhua news agency reported. In March 2025, both Ningaloo and the Great Barrier Reef on either side of Australia experienced simultaneous bleaching for the first time.

These findings are vital for shaping coral reef protection strategies as marine heatwaves intensify, potentially buying time for reefs while the world shifts away from fossil fuels, the main driver of extreme climate impacts, Quigley said.

Coral reefs are vital to the livelihoods of millions, protect coastlines, and support over a quarter of marine biodiversity, but have suffered steep global declines.

- IANS

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Reader Comments

Here are 6 diverse Indian perspective comments for the coral breeding article:
P
Priya K.
This is such an important breakthrough! 🌊 Our Lakshadweep reefs are also suffering from bleaching. Maybe Indian marine scientists can collaborate with this Australian team to implement similar techniques here. Climate change affects us all.
R
Rahul S.
While this is good research, we shouldn't treat it as a magic solution. The root problem is still carbon emissions. India must balance development with protecting our coastal ecosystems. Our fishermen's livelihoods depend on healthy reefs.
A
Ananya M.
Amazing work! But I worry - won't selectively breeding corals reduce genetic diversity? We saw what happened with monoculture farming. Nature's balance is delicate. Still, desperate times call for innovative measures.
V
Vikram P.
The Andaman reefs are India's underwater treasure. Our government should invest more in marine research like this. Tourism and fishing industries both need healthy coral ecosystems. Jai Hind!
S
Sunita R.
As someone who grew up near Chennai beaches, I've seen coral decline firsthand. This gives me hope! But developed nations must take more responsibility - their emissions caused most of this climate damage.
A
Arjun D.
Interesting science, but will it scale? Coral reefs span thousands of km. We need local solutions too - reducing plastic pollution and unsustainable fishing that damages our reefs. Every small action counts.

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