endothermic species

Are Any Fish Endothermic? Of those examined in the study, four shark species are endothermic — salmon, porbeagle, white and shortfin mako — as are five species of tuna — yellow fin, southern bluefin, Atlantic bluefin, Pacific bluefin and albacore. Are all fish endothermic or exothermic? Most fish are ectotherms. Ectothermy can be metabolically more