A big mistake that people have made with hatchery programs over the years is that they just assume that they will be successful. As Carcassman pointed out, there has been, perhaps still is, a severe decline in survival of yearling releases in S. Puget Sound that started in the late 1980's. At that time, as I said, there were some programs that were releasing over 30,000 pounds of fall Chinook yearlings and only contributing 20 or so fish to catch and escapement. It made no sense to continue these programs as they were basically just flushing fish down the toilet. So I would suggest a more accurate statement would be "Hopefully someone will be able to gather return data to determine IF there is improvement in adult returns by these fish versus those released into the river."