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Dolphin deaths in South Australia spike after algal bloom decimates food sources

The Guardian World Monday 13 July 2026, 15:00 UTC By Petra Stock 1 min read
Key Points

The March 2025 marine disaster may be linked to a high number of dolphin deaths in the region, scientists sayGet our breaking news email, free app or daily news podcastThe number of dead dolphins washing up on South Australian beaches spiked in 2025, according to long-term data that reveals mortalities during the state’s devastating algal bloom were the highest in 12 years. Last year, at least 70 carcasses of common and bottlenose dolphins were found across South Australia, with a further 20...

The March 2025 marine disaster may be linked to a high number of dolphin deaths in the region, scientists say

The number of dead dolphins washing up on South Australian beaches spiked in 2025, according to long-term data that reveals mortalities during the state’s devastating algal bloom were the highest in 12 years.

Last year, at least 70 carcasses of common and bottlenose dolphins were found across South Australia, with a further 20 reported in 2026, including the recent death of a popular Port River dolphin known as Zoom.

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South Australia (LOCATION) South Australian (ORG) Port River (LOCATION)
Originally published by The Guardian World Read original →

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