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Four million salmon died prematurely at Tasmanian fish farms in 2025, government data reveals

todayJanuary 26, 2026

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Death toll sparks calls for companies to be fined under animal welfare legislation over mass fish deaths

At least 4 million salmon died prematurely at Tasmanian fish farms in 2025, with new data from the state’s Environmental Protection Authority (EPA) suggesting about 500,000 fish died in November and December as ocean temperatures warmed.

Scientific studies indicate Atlantic salmon are adversely affected when ocean temperatures approach 18C. At higher temperatures, salmon encounter less oxygenated water, suffer from liver and kidney damage, have less appetite and become more vulnerable to disease.

This article was republished with permission from the Tasmanian Inquirer

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Source: www.theguardian.com

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Written by: truelightfm

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