SCOTLAND S nature preservation agency has raised concerns about the growth of fish farming and the risk to wild salmon as objections grow about how the aquaculture industry is dealing with a crisis over on-site deaths. Current concerns have focussed on one of the nation s most environmentally sensitive areas, the Firth of Clyde which is facing a 58% rise in the extent of fish farming through seven new and expanded projects which campaigners fear provides a serious risk to wild salmon while also acting as blots in a protected area. Sea lice are posing a major problem across Scotland’s farmed salmon industry, with parasites from open net farms earlier this year.