well the MOST humane thing would be to not build dams blocking salmon migration routes, nor create a society where there are only resources allocated to solving the problem at all because blocking the salmon endangers the profits of a segment of the food industry.
Buuuut since we’re past that already, here are a couple of additional thoughts:
1
this IS the more humane alternative, which was invented to lower injury and death rates associated with previous techniques. When a better alternative is revealed it will probably replace this one. But this one is a pretty huge improvement over the other methods, one of which killed off something like 80% of the fish involved.
A study of the above fish tube was conducted by Pacific Northwest National Laboratories in 2017 on the Columbia River and showed a much higher success rate. In that study, only one fish died (“due to a human error during the system setup”) and only 3 percent had signs of injury. So. The next best improvement might have to be “remove dam”
2
they are on their way to die. That is where we are helping them get to. That’s the end goal of the salmon’s migration. They on their way to mutate, start rotting alive, have an orgy, and die. That’s where the tube is taking them.
So like, it’s not going to be the weirdest thing they experience this month, is what i’m saying.