Farming of Atlantic salmon is predominantly carried out in Norway, Chile, Scotland, and Canada. Biphasic in nature, salmon are raised in freshwater inland sites and then typically transferred to saltwater net pens. Despite being regarded as the most industrialised aquaculture sector, bearing lower economic and biological risk than production of other aquatic species, Mark Braceland at CATC points out that Atlantic salmon culture still faces several challenges spanning engineering of culture systems to the assessment and monitoring of stock health.