Atlantic Salmon
The thrill we get from a screaming reel and a jumping fish is primal, and an anthropologist could probably trace it all back to one fish, the Atlantic salmon. The species is both the foundation and nexus of the modern sport of flyfishing. The very name, Salmo salar, translates from the Latin to "leaper", and trying one's skill and luck against the salmon has been considered the sport of kings by Europeans since the first one picked up a stick, hung some silk off its end and tied chicken feather to bone or steel.
"The three greatest gamefish in the world are tarpon, bonefish, and Atlantic Salmon, but I'll take the Atlantic salmon over all of them." – Ted Williams, "The Splendid Splinter"