How do I bleed and fillet a tuna once caught?

Question

How do I bleed and fillet a tuna once caught?

Answer 1

Cut the piece of skin directly where the gills are. If you can, teather him (while still alive) around the bottom jaw, you can then let him swim out all his blood. This should only take a few minutes and is very effective.

Immediately, remove the gills once this is done and throw overboard. Either fillet it or throw the body in an ice slurry. The best way to fillet is to get a purpose filleting nice, and then, from the tail scoots, run your nice all away along the bone until you get to the other side of the fillet.