DA,

Todd's gone fishing for a few days.

The respawner survival numbers are from reading the scales of adult steelhead to determine their age and hatchery or wild genesis. 12 or 13% is generally what's been observed for wild steelhead in WA state, and by far most of those are females. I know I only saw one male ever with a respawner check, and I think I heard of one that had two, which is so close to a statistical impossibility, but it probably happens occasionally. I don't have a report citation for you, unfortunately.

Sincerely,

Salmo g.