Pike have a lateral line connected to their swim blader with fine bones, viewed in a cross section of a pike fillet its like a chicken Y bone, there are piles of videos on you tube showing you how to fillet them out, all american/canadian, look for either pike filleting or shore lunch will find one.
Pike are a very delicate fish, in their aquatic environment, so please ensure the water you are taking them from will sustain the removal. I would also advise taking smaller ones (under 5lb)as if a dyed in the wool pike angler catches you frying a specimen you will likley get lynched as they are a very passionate bunch (myself included) about catch and release.
I always advise using a wire trace, there is no point getting your spinner bitten off and leaving the pike to dye somewhere a slow starving death, at least if you use a trace you can enjoy the fun of the fishing without worrying about being bitten off!!!
I ate them along with walleye in a shore lunch on a fly out trip in canada, but dont tell my fishing buddies or i'l get lynched :-D