That is a very very fat looking moki. Very deep in the body and from the way it is lying on the deck it looks very thick thru the body. They are generally fattest in April/May just before they disappear to spawn. This one might have resembled a football by May if hadnt been caught. I bet when you gutted it you noticed how greasy your hands became.

To me they have a disgusting flavour and I give them away or put them back in the drink. I have often heard that oven baking them is the way to go.

Perhaps try a fillet liberally coated in peri-peri chip sprinkle and some the South African spice rub called Zulu Fire added plus some garlic tomato paste and a lemon wedge - wrapped in aluminium foil and baked for 25 mins in a moderate oven. Throw the cooked fillet away and spoon whats left over some lightly buttered fresh brown bread - enjoy!