ET, I doubt that this research would lead to closing all hatcheries, even if the results are generally the same for other streams. But it should prompt us to take a hard look at "outplanting" hatchery fish into streams where they aren't being recovered as adults (pretty much all streams without a hatchery and/or weir). Allowing these fish to spawn in the wild could be very detrimental to the wild spawners, through competition for spawning and rearing habitat and/or inbreeding with the wild spawners.

When this research is published I'll post the reference on this board.