if it's caught deep sea fishing it should be ok after freezing for a week or so.
i take em home live in multiple large coolers, once home i cut the head off,
wash it real good, descale em, de-bone & cut/filet it and then freeze for 2 weeks
in zip lock bags. depending on what its for i cut it into cubes or run it in a blender
for a very short time so its minced but not too fine. unless im eating for myself
then i just thaw the filet out and cook it as i please. havent had a problem or fish
casualty yet and its the same process for over a decade.
but if its caught by pier fishing or close to the shore i would never eat it yet alone
feed it to my fish or any other pets. especially in LA waters lol... in this case it's
always catch and release or use as bait.