I'm also the indigenous project manager for the Big Bar landslide indigenous engagement committee, so I can answer your questions.
The more of those salmon get touched by human hands, the less chance they have of getting over the slide. All the scientists we've worked with are trying to get a system in place where we can get them over without touching them, without putting them in buckets or tanks. The pneumatic tubes or the Whooshh trademark system that we have put in place successfully put one chinook over this past weekend. It's the best way we've found to get the salmon over the obstruction.
We don't plan on using any helicopters. Last year, that was a very tough task. The salmon suffered immensely. They were already holding for a month below the slide. Then to be taken on a helicopter ride, which is not normal.... They were falling back. They were dying.