Below is my editorial from the February 2019 “Fishotopian” newsletter. To subscribe to these free monthly newsletters from Fishotopia.com, please click here. Unless you’ve been overseas or off grid for the past few months, you’ll have seen coverage of catastrophic fish kills in outback NSW, especially along the Darling River near Menindee. The scale of this disaster is staggering and difficult for most of us to comprehend. It appears the loss of aquatic life in some stretches of this iconic outback waterway may be close to total. It’ll take decades for native fish populations to recover, assuming they ever do… and that’s a big assumption. The Darling River holds a special place in my heart. Back in 1980, my first posting as a wet-behind-the-ears schoolteacher was to Bourke, in north western NSW. Here, along the steep banks of the twisting Darling, I discovered the “vision splendid” of Banjo Patterson’s “sunlit plains extended, and at night the wond’rous glory of the everlasting stars”. It was here I first inhaled the intoxicating perfume of that wonderful petrichor that’s released as fat drops of rain smack onto drought-parched plains, and watched the sun slide behind a horizon so staggeringly wide you’d swear you can see the curvature of the earth. On the downside, I also witnessed the mud-sucking peak of a spreading carp plague, and watched the disturbing phenomenon of a river suddenly flowing backwards as giant irrigation pumps fired up to feed cotton crops the size of small European nations. For me, the writing was already on the wall for the mighty Darling, and the story it told was not a happy one. The Darling is officially described as a “dryland river” and is characterised by “extreme climatic variability”. It has been that way since well...