The mass fish deaths at Menindee in March this year are “symptomatic of degradation of the broader river ecosystem over many years”, the New South Wales chief scientist has concluded.
Prof Hugh Durrant-Whyte’s report released on Thursday concludes that 20-30m fish died in March after floods in the region. This eclipsed the other major fish kill in January 2019, which occurred after months of drought and a wave of high temperatures.