Latest science: marine life continues to flatline in Macquarie Harbour



Media release


Latest science: marine life continues to flatline in Macquarie Harbour

Today the Institute of Marine and Antarctic Studies (IMAS) released their latest report on the health of Macquarie Harbour, one of Tasmania’s most controversial salmon farming regions, which has been plagued with marine dead zones and mass fish kills since 2015.

“This report shows no recovery in marine life at salmon farm leases or in our World Heritage Area, in fact dead zones have worsened at southern leases compared to the last survey,” says Laura Kelly, Strategy Director at Environment Tasmania. “Add to this the 1.35 million salmon that died from disease and poor growing conditions over summer, and it’s impossible to fathom why Macquarie Harbour has not been emptied.”


“This report tells the same story we’ve heard for years, cyclical peaks and troughs in oxygen levels, but not enough oxygen for marine dead zones to recover or to meet fish welfare requirements.”

“It’s outrageous that this report was not released before the EPA released their ruling on the number of salmon that can remain in the Harbour for the next 2 years. At 9,500 tonnes – the government has taken no decisive steps to reduce biomass – they’ve just legislated to allow for whatever is left alive,” Ms Kelly says.

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  • Elisabeth Rodda
    commented 2018-07-04 08:56:46 +1000
    Dreadful conditions. The area should not be sustaining these salmon farms.