The sweet relief of rain after bushfires threaten disaster for our rivers | Paul McInerney, Klaus Joehnk and Gavin Rees for the Conversation

Fire debris flowing into the Murray-Darling Basin will exacerbate the risk of fish and other aquatic life dying en masse

When heavy rainfall eventually extinguishes the flames ravaging south-east Australia, another ecological threat will arise. Sediment, ash and debris washing into our waterways, particularly in the Murray-Darling Basin, may decimate aquatic life.

We’ve seen this before. Following 2003 bushfires in Victoria’s alpine region, water filled with sediment and debris (known as sediment slugs) flowed into rivers and lakes, heavily reducing fish populations. We’ll likely see it again after this season’s bushfire emergency.

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Source: theguardian
The sweet relief of rain after bushfires threaten disaster for our rivers | Paul McInerney, Klaus Joehnk and Gavin Rees for the Conversation