Diets containing 75ppm carotenoids were fed over a 15-week period to Arctic char (Salvelinus alpinus). Carotenoid content in flesh and skin was increased form 1.35 and 10.73 ug/g wet tissue to 5.56 and 41.21 ug/g, respectively. Subsequent feeding over a 7-week period on diets devoid of astaxanthin resulted in a decrease of 66.01 and 55.55% in carotehoid concentrations, Storage of the fillets for up to 12 days at 4°C air or at -20°C under vacuumpackaging conditions for 0 days had little effect on carotenoid retention with only 1.93-8.47% decrease. Crude protein content before feeding carotenoid-containing diets was 19.21% and this increase to 20.25 -21.05% after 15 weeks. The corresponding PER value of before and after feeding was 3.18-3.20 and essential amino acid index of samples varied between 126.45 and 128.77. The caloric values of the unpigmented and pigment4ed fillets were not significantly different. Eicosapentaenoic and docsahexaenoic acids were presented at 6.63-7.43% and 10.78-14.64% in fish fed pigmented diets, respectively and fillets contained between 54.66 and 60.49mg cholesterol/ 100g sample. The major minerals present were potassium and phosphorus, 239.03 and 256.01-274.05 mg% in pigmented fish, respectively. During peimentations, the level of calcium decreased form 18.81 to 6.00-8.80 mg% while the content of B vitamins increased form 3.04 to 5.86 mg%. Free amino acid content in all samples varied between 295.03 and 364.23 mg%. No histamine was detached in any of the products.