This is an easy way to clean a fish without dulling your knife because you never cut through a bone. I have a spoon black-taped to the handle for easy cleaning of the blood line and I've cleaned up to a 100 in a day, so one has to be fast. You don't need a fillet knife, just one that is strong and sharp!
Step 1: Sockeye Salmon
Start with one sockeye salmon. Most fish we get are quite silver coloured but it's getting to the end of the season so we start to see a few red ones, this has no effect on the quality of the fish until much later in the season. In this picture you can also see marks from our gill net.
Step 2: Cut the tail
Cut around the tail, ensuring all skin is cut, do not cut the bone! I like to use the tail as a "handle" after cutting, especially if I'm down at the river dipping the fish in the water.
Step 3: Cut the head
Lift the fin and angle your knife to cut towards the head, stop cutting when you hit the bone.
Step 4: The other side
Flip the fish over and angle your knife to cut towards the head on the other side. Make sure all the skin is cut (this is important), you might have to flip the fish upright and cut down, but do not cut the bone itself.
Step 5: Along the belly
Cut from the anal opening to the head of the fish.
Step 6: Snap the neck
Firmly grasp the head, pull down towards you and along the belly. This is where you snap the neck bone.
Step 7: Guts and all
The guts will come out attached with the head in one swift pull, leaving everything clean inside. Doing it this way you never have to touch the guts.
Step 8: The blood line
Cut along the inside to reveal the blood line.
Step 9: Scoop
This is why I have the spoon taped to the end of my knife, you simply flip the knife and scoop out the blood.
Step 10: Snap the tail
Firmly grasp the tail and it should easily snap off, as long as there is no skin attached.
Step 11: Hose it off
Hose everything off.