The current project aims to study the termal preference and dietary demandsof triploid Atlantic salmon. The results of the project will reveale if triploidsalmon can be put to culture in regions with a moderat water temperatureduring the summer. If so, farming of triploid salmon may have the potential tobe both sustainable and and profittable in these regions.In addtion, the project aims to get behind the mechanisms involved in theinduction of skeletal deformities and cataracts and the reduced therm altolerance of triploid Atlantic salmon. Finally, the project will study how triploid salmon are able to regulate their gene expressional out-put to a similar level as in diploids, and if triploidy induces any changes in the gene expressional machinery than can explain their changed temperature tolerance and nutritional demand.The project involves one PhD student that will focus on the combinedeffect of temperature and diet formulation on the development of skeletaldeformities and cataracts in triplo id salmon, and the mechanisms behindthese disorders.