>>2620097if i was forced to guess, it's a spring chinook parr just because of its size (it's older than a year). the skagit has all 5 pacific salmon species and steelhead i believe, it may also be a coho smolt, but chum/pink are early departure juveniles and sockeye live mostly in the lake as juveniles i believe.
depending on run sizes, you should have salmon to catch in the skagit from april/may to october, with chinook returning first and coho returning last, i believe.