This is why it's important not to touch baby wildlife and try to domesticate it. A bull elk in Idaho was illegally removed from the wild as a baby in the spring of 2018 and then raised in captivity by a resident of Sweet, Idaho.
The Salmon season is for hatchery fish only. Remember that each river has different rules and times where Salmon fishing is allowed. You will know this because the adipose fin between the tail and dorsal fin clipped off.
This plays such a key role in managing the population and increasing return numbers if done right. From sample gathering and genetics testing, there is a lot to know about how fish hatcheries work and the role they play in this amazing state.