As mentioned, the return rate of steelhead on second spawning runs the following year varies a lot from river to river. I did hear recently that combining studies have put the figure at around 10% repeat spawners. And of course, those are usually big fish! I am pleasantly suprised by that figure, because I recall many years ago of studies indicating it was around 5%. With 10% coming back despite the big increase in seal populations, that's a positive thing to hear.

RT