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Coral recovery during a prolonged heatwave offers new hope


Researchers sampling coral colonies on Christmas Island (Kiritimati) in 2019.Kristina Tietjen
Coral reefs serve important ecological functions, from providing habitat for countless species to protecting shorelines from erosion. Reef-dependent fisheries are also a vital source of food and income for hundreds of millions of people in tropical island nations where coral reefs are valued at $6.8 billion annually. 
The pressing concerns of climate change have placed the long-term health of the world’s coral reefs in jeopardy. However, new research inspires hope as some corals managed to survive a recent and globally unprecedented heatwave.
“Understanding how some corals can survive prolonged heatwaves could provide an opportunity to mitigate the impact of marine heatwaves on coral reefs, allowing us to buy time as we work to limit greenhouse gas emissions,” said lead author Danielle Claar, a postdoctoral researcher at the University of Washington who completed the wo ....

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Coral Recovery Following Prolonged Heatwaves


Coral Recovery Following Prolonged Heatwaves
UVic marine biologist Julia Baum sampling Platygyra colonies on Kiritimati (Christmas Island), 2019. Image Credit: Kristina Tietjen.
Coral reefs could bounce back from bleaching caused by soaring temperatures new research suggests, but only in the right conditions.
Coral reefs have provided researchers with some hope that at least one element of nature could ‘bounce back’ from soaring temperatures and a global heatwave induced by climate change    but, only with a very specific plan of action in place.
Biologists from the University of Victoria (UVic) report that some corals have displayed unexpected resilience to rising ocean temperatures driven by unprecedented heatwaves. The discovery has positive implications for the long-term survival of coral reefs in the face of global warming.  ....

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