Photo: A mass fish death in Walgett last year killed thousands of fish. Between 2019 to 2023 there was an average of 69 mass deaths per year in NSW. [IMAGE: Supplied]
Fish kill events have been escalating in the last five years according to the government’s latest State of the Environment Report (2024) for New South Wales released late last month.
Between 2019 to 2023 there was an average of 69 mass deaths per year, compared to an average of only 21 between 2009–18.
Since European settlement, there’s been an estimated 90 per cent decline of native fish and waterbird species in the Murray Darling basin…

