Do fish have loins

I am an Aquaculture Technician and have worked with fish for nearly 20 years. There are no such things as "Fish Loins" It's just as ridiculous as thinking a pig or cow has fillets. This is simply a marketing ploy to make money off our stupidity, if in fact you are fooled by this. Next time you see" fish loins" for sale anywhere, ask the guy behind the seafood counter to point out the difference between a fillet and a fish loin. You'll only end up putting him on the spot. it's fun, I do it all the time. So there is your professional answer and "You're welcome"