'Wall of mud and ash': fish disaster moves across Murray-Darling Basin | p_hannam
The threat of mass fish kills is emerging across the Murray-Darling Basin as low river flows and the influx of soil and ash from bushfires reduce water quality.
Professor Baumgartner said a NSW Fisheries team arrived near Tumbarumba in southern NSW to rescue endangered perch, only to witness sludge moving down the river "with the consistency of cake mix".The Murray-Darling Basin Authority revealed the scale of the threats to the health of freshwater ecosystems on Wednesday, with the release of a map showing almost all the major river valleys faced problems.
"We expect water quality to continue to be a serious issue as the drought continues and risks of contamination from bushfires remain," he said in a statement. "Bushfires are an added complexity to the water quality issues we regularly deal with in summer and particularly in times of drought."A spokesman for WaterNSW said there had been "a high number of alerts in the Murray-Darling Basin during the drought".
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