"Interesting. Quite the percentage of loss to predators, or whatever. I'm struggling to see how a study focused on every single returning parent could get past an obstacle so influential on the numbers, like + 75% loss during out-migration."



Wow someone who gets it, everyone is so focused on selective fishing the real problem is just oblivious. Take a 100000 smolts 80/20 H/W and remove 95-98% of them non-selectively from predation, what the heck do you get back? Cutting hatchery releases won't fix it, total numbers will just keep dropping, plus the predators still need to eat so they turn to other species.