What hooks can I use to fish with to increase fish survival?

[yana]

I've noticed while fishing that my fish always get hurt. Sometimes the fish struggles too much and gets very badly injured.



Environmental fishing is still a good idea with circle hooks.

[Drakestar]

The way I understand, delayed mortality in C&R bass comes from multiple sources:

Keeping the fish out of the water too long. (Rule of thumb is "only as long as you can hold your own breath".)
Breaking the fish's jaw. (Boat-flipping, bad holding & handling.)
Crushing internal organs. (Bad handling.)
Destroying too much slime coat. (boat carpet, dry ground, hands.)
Livewells. (Ammonia build-up from stressed bass.)
Gut-hooking and bleeding gills. (Obviously.)

Hooks are one part of the equation.

[mark poulson]

When you put fish in your livewell, run them continuously, so fresh water is constantly flowing through the livewell.

[clum553946]

Barbless hooks but a lot of fish come off the hook.