We have a spanish mackeral here too, but not nearly as big as these kings.They look real close to what we call spanish mackeral down here,speedsters,sharp teeth .Great fish fresh,not sure about frozen.Looks like a great plate.
Your welcome they get way bigger as you get over to the South Pacific Islands like Vanawatu or the really remote parts of Australia where the pro boats cant access.I have no idea why we call them Spanish in the first place.Your Spanish mackerel make ours look like minnows! From the pic, they are as long as our king mackerel and heftier.
Thanks for the pic!