I buy salmon in Migros from time to time - but always with a guilty conscience. As reported in the British media, Scottish salmon farms are legally allowed to kill seals, which pose a threat to the farms (1500 over the last six years).
What do you know about the production conditions of your farmed salmon (Scottish and Norwegian)?
Here is a link to an article in the Independent:http://www.independent.co.uk/life-style/food-and-drink/uk-seal-population-salmon-farming-fish-industry-scotland-numbers-a7808316.html