To safely use the Ikipik on your catch identify the iki point. This is where the brain cavity is.
Once this is identified simply spike the fish by pushing into the flesh, thus euthanising instantly.
The fish should, if spiked correctly, stop moving. This will ensure a much more humane end to your catch compared to cutting the neck or placing in a catch tank live.
Another important reason to use the Ikipik is treating your catch humanely.
When placed in a bucket or catch tank even with the neck cut the fish die a very slow agonising death.
As fishos, we all try to do the right thing, so treating our catch with respect should be a priority for us.