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The Guardian - AU
The Guardian - AU
Environment
Petra Stock

Sea dragon populations decimated in ‘mind-blowing’ mass mortality event caused by South Australian algal bloom

Man holds dead weedy sea dragons
Weedy sea dragons, found only in Australia, were among the first mortalities observed washing up on South Australian beaches as the algal bloom spread up and down the coast. Photograph: Stefan Andrews/Great Southern Reef Foundation

Thousands of sea dragons, pipefishes and seahorses died during South Australia’s devastating algal bloom, in what ecologists say is the worst mass mortality event for the fish family globally.

More than 1,600 weedy and leafy sea dragons, 1,400 pipefishes and 160 seahorses washed up as the harmful algae spread along the state’s coastline, according to analysis of citizen scientist records by Dragon Search SA.

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