Salmon and Trout Conservation Scotland is calling on the Scottish government to "intervene to protect wild fish" as a "virulent disease at Marine Harvest salmon farms" is reaching "rampant" levels.

Marine Harvest salmon farms in the Hebrides and Wester Ross are currently host to rampant amoebic gill disease (AGD), which can cause severe losses amongst affected fish, the group said.

At least four sites are or have been impacted including West Loch Tarbert and East Loch Tarbert on Harris, Loch Greshornish on Skye and the Isle of Ewe in Wester Ross.

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