A “wall of dead fish” spanning tens of kilometres is moving along a stretch of the Darling-Baaka river near the town of Menindee, with temperatures forecast to reach 41C in the area on Saturday.

https://www.theguardian.com/australia-news/2023/mar/18/the-smell-is-next-level-millions-of-dead-fish-spanning-kilometres-of-darling-baaka-river-begin-to-rot