The Atlantic salmon aquaculture industry is expanding offshore, and thus fish are being farmed in more remote locations that are subject to more extreme sea conditions. Due to their isolation, offshore farms are difficult to access, and this creates challenges for monitoring fish. New advanced and automated tools are needed, therefore, to monitor fish welfare in offshore aquaculture. This PhD project will develop computer vision approaches to monitor fish in Tasmania’s salmon farms. It will provide an automated system to observe the condition of fish and support decision-making by managers. The outcome will be a model that helps managers maximise the welfare of fish while keeping the monitoring costs at offshore farms low. This PhD project is in collaboration between Griffith University, the University of Tasmania and all three of Tasmania’s salmon aquaculture companies: Tassal, Huon Aquaculture and Petuna.