WA’s ‘longest and most intense’ marine heatwave killed coral across 1,500km stretch

Tue, 12 Aug 2025 12:13:58 +1000

Andrew Pam <xanni [at] glasswings.com.au>

Andrew Pam
<https://www.theguardian.com/australia-news/2025/aug/12/was-longest-and-most-intense-marine-heatwave-killed-coral-across-1500km-stretch>

"The “longest, largest and most intense” marine heatwave ever recorded in
Western Australia has killed coral throughout an area that stretches 1,500km,
according to state and federal scientists.

More than 100 scientists and marine managers will gather in Perth on Tuesday
for a special meeting to discuss the devastating event that bleached and killed
corals on remote reefs earlier this year.

The marine heatwave that hit reefs from the world heritage-listed Ningaloo to
the remote Ashmore Reef left many scientists shocked.

A group of scientists from state and federal government departments, agencies
and universities, who monitor coral bleaching in Western Australia, will issue
a detailed update on Tuesday.

The heatwave, which started to build off the north-western WA coast in August
2024, caused heat stress in corals across the state’s northern reefs that
lasted until May this year in “the most severe coral bleaching on record for
Western Australian coral reefs”, the update said."

Cheers,
       *** Xanni ***
--
mailto:xanni@xanadu.net               Andrew Pam
http://xanadu.com.au/                 Chief Scientist, Xanadu
https://glasswings.com.au/            Partner, Glass Wings
https://sericyb.com.au/               Manager, Serious Cybernetics

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