Seasonal changes in the fillet fatty acid profile and nutritional characteristics of wild Trasimeno Lake goldfish (Carassius auratus L.)

► We studied the seasonal changes of fatty acid of Trasimeno Lake goldfish fillets. ► Season significantly affected the chemical traits of the fillets. ► A lower level of SFA was observed during spring. ► PUFA exceeded 50% of the total fatty acids during the autumn, spring and summer. ► We assessed the high nutritional value of goldfish, mainly in autumn and spring.