Studies on environmental conditions and influence on salmon farm production

The study was undertaken to investigate how environmental conditions influence growth of Atlantic salmon, and how different sub groups of salmon respond to different environment. The fish were raised at five different marine fish farms, and environmental conditions, growth and management were controlled routineously. The fish farms had different environmental conditions with regard to concentration of oxygen of ammonium. There were no simple connection between environment and growth. Farm management seems to be the most important single factor controlling growth. In several cases significant differences in family ranking between the fish farms were detected