The fish abundance is an important source of income for lake residents. Among the fish species Tench, Eel, Carp, Pike and Perch are found. Rare amphibian such as Alpine Crested Newt and reptiles such as Dice Snake live in and at Lake Trasimeno.
Many migratory birds rest at Lake Trasimene. Among them are Squacco Heron, Purple Heron, Little Bittern, Kingfisher, Bittern, Wigeon, Mallard, Tufted Duck, Ferruginous Duck, Great Crested Grebe. Occurring raptors are Short-toed Snake Eagle, Osprey and Eagle Owl.