psneeld
Guru
I've noticed that the barbs on even normal hooks decay pretty quickly during extended trolling. I could see them deteriorating to the point where the hook would basically be barb-less within a few days?
Seems like a lot of research discussed that a hook in itself doesn't decay quickly, but fish in general seem to find ways of getting rid of hooks pretty quickly though.
Whether it's because the hole in whatever the hook set into enlarges, the barb corrodes or a combo of both, the fish seem to rid themselves in a couple days or so to their benefit.