just pick em out most fish have parasites.i once caught rock bass that had small white/yellow worms i called the Fish dept and they said dont worry,cod gets red worms too.hold the fillets up to the light and pull em out .if your really worried call your local fish and game department and let them know and ask
Now therefore take, I pray thee, thy weapons, thy quiver and thy bow, and go out to the field, and take me some venison.
Genesis 27:3 "The thinking deer hunter should mature through three phases during his hunting life. First phase, "I need to kill a deer." Second phase, I want to harvest a nice deer. And last phase, we must manage this resource so our children and their children can experience the grand tradition of good deer hunting." - Jim Slinsky