Drone footage filmed above a stretch of the Darling-Baaka River near the Australian town of Menindee showed millions of dead fish blanketing the water on Saturday. The New South Wales Department of Primary Industries said the deaths were related to low oxygen levels after the extreme flooding in the region in January had receded. It is the latest in a series of large-scale fish deaths that have prompted questions about the management of water levels in the Murray-Darling Basin

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