By Maria Ward-Brennan Six of the world’s top salmon producers have been hit legal action in the UK over alleged collusion and unlawful price-fixing of its Atlantic farmed product. The case was filed to the Competition Appeal Tribunal (CAT) against Mowi, its subsidiary Mowi Holdings, SalMar, Lerøy, Scottish Sea Farms and Grieg as a collective action. The six companies are all prominently involved in the global farmed Atlantic salmon market, and are major suppliers of farmed Atlantic salmon to UK supermarkets. According to the claim, these companies are alleged to have worked together to increas…