The Great Barrier Reef is suffering its third mass bleaching event in five years. It follows the record-breaking mass bleaching event in 2016 that killed a third of Great Barrier Reef corals, immediately followed by another in 2017.
While we don’t know if fish populations declined from the 2016 bleaching disaster, one 2018 study did show the types of fish species on some coral reefs changed. Our study dug deeper into fish DNA.
I was part of an international team of scientists that, for the first time, tracked wild populations of five species of coral reef fish before, during, and after the 2016 marine heatwave.
From a scientific perspective, the results are fascinating and world-first. MORE
Header image: Marine heatwaves are now becoming more frequent and more severe with climate change. Corals are bleaching, as pictured here. Credit: Jodie Rummer, Author provided.