Almost 75,000 farmed salmon in Scotland escaped into the wild after Storm Amy – why this may cause lasting damage

By William Perry, Postdoctoral Research Associate at the School of Biosciences, Cardiff University

When Storm Amy battered the Scottish Highlands in early October, it tore through a salmon farm’s sea pens, releasing around 75,000 fish into open water in Loch Linnhe. The scale of the escape is alarming. It comes at a time when wild Atlantic salmon – already classified as “endangered” in Great Britain – are in decline.

For an animal so central to the UK’s ecology, culture and economy, the incident has serious implications.

At first glance, it might sound like a rare bit of good news:…

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