RE:Fish tails or fish tales?
Spanish mackeral is nothing like an atlantic mackeral. I don't think anyone eats real mackeral without pickling it. Spanish tastes like an albacore kind of, but buttery tasting when really fresh. I just ate it with wasabi and soy.
It's very firm yet melts a little in your mouth like tuna. It's very white and cooks up really nice too.
I haven't checked the scientific name but I bet it's not really a mackeral...