I am by no means a chef, but I have eaten more speared fish than most. Things to have:
-side mounted grill for boat use
-butter
-lemons
-coarse ground black pepper
No matter what you catch, have the guy watching the boat cook it as you go. Bigger fish get steaked, buttered, grilled, lemon juiced at the end of their cook time, and black peppered. Simple and AWESOME!
A tuna done this way will make you change your whole outlook on the bounty that can be pulled from the ocean. Dolphin (not flipper of course) or Dorado is incredible this way as well.
Hope this helps.
John








