Salmon farming giant Mowi has withdrawn one of its sites from an organic certification scheme after secret filming revealed lice-infested fish. Surveillance by vegan charity Viva! at Mowi’s Loch Torridon site showed fish being “eaten alive” by the parasites. The charity also filmed dead and dying fish and claimed the surveillance ­footage showed salmon suffering from gill and bacterial disease.

Now the Torridon site has been removed from food charity Soil ­Association’s organic certification list. A Soil Association Certification spokesperson said: “The organic license for Mowi Loch Torridon’s site formally closed on October , following a ­business decision by Mowi to end organic certification for this site.

“Soil Association ­Certification was made aware of welfare concerns at the Loch Torridon site by ­activists when they visited its headquarters in Bristol on 1 November. While this site is no longer certified, we take welfare concerns very seriously and are undertaking ­further ­investigations.” Surveillance by vegan charity Viva! at Mowi’s Loch Torridon site showed fish being “eaten alive” by the parasites

Mowi is a major ­supplier to supermarkets including Asda, Sainsbury’s and Tesco, and Viva! investigators visited the site on July 2 this year. Lex Rigby, Viva!’s head of ­investigations said: “Viva!’s monstrous footage of fish being eaten alive by ­invasions of parasitic sea lice and cages surrounded by swarms of jellyfish just goes to show what a stomach-churning disaster Scottish salmon farming is.