<
https://theconversation.com/how-did-millions-of-fish-die-gasping-in-the-darling-after-three-years-of-rain-202125>
"Millions of dead fish float on the surface of the river. Native bony herring
and introduced young carp, as well as a few mature Murray cod and golden perch.
History is repeating on the Darling River at Menindee. This new fish kill is
even worse than the enormous 2018–2019 fish kill. And it’s in almost the same
location.
But how can so many fish die when we’ve been having floods? What’s killing
them?
In both 2018 and 2023, the immediate answer is the same: the fish ran out of
oxygen. Five years ago, it was because the river was almost dry. This time,
it’s likely to be factors like the heatwave days earlier, receding floodwaters,
bacteria pulling oxygen from the water – and no escape.
But two events like this in five years speaks to a deeper cause. The Darling
River – known as the Baaka by Barkandji Traditional Owners – is very sick. Too
much of its water is siphoned off for agriculture. Our native fish are hardy.
They’re used to extremes. But this is too much, even for them."
Cheers,
*** Xanni ***
--
mailto:xanni@xanadu.net Andrew Pam
http://xanadu.com.au/ Chief Scientist, Xanadu
https://glasswings.com.au/ Partner, Glass Wings
https://sericyb.com.au/ Manager, Serious Cybernetics
