The Kid gave his theses speech tonight, On wild reproducing Rainbow Trout in Deerfield Res.
His study has been going on for two years. They have the same 22 spots on the inlet creeks they shock for 100 meters once a month. When they first did it they chipped all the wild rainbow trout they caught and clipped an annal fin. They found the fish stay in the creek for 3 years then go down to the resavoir. They only grow 8-10 inches in the creek in that amount of time. Then they come back up stream to spawn. Depending on the strain of hatchery stocked fish (they try to spwan with the wilds) the stockers Dilutute the "spawn" and less of the eggs hatching.
The Kid suspected that it was "Irwin Alies" strain that naturally reproduces, ( dont have a clue how to spell that strain of trout). All their trout eggs come from "the Federal Hatchery System." I dont think you and I can get them, and not sure if we want them, maybe under better conditions they grow better. The did shock one 21 inch spawner wild trout.
Good luck finding a wild reproducing trout.