I live in southern New Mexico, in the northern part of the Chihuahua
desert about 1000 miles from the nearest ocean. There aren’t many fish in the desert. Understandably, the majority of the rather limited seafood supply here is frozen, and a lot of that is farm-raised to boot. All in all, it is not a very encouraging situation to put fish on the menu. Quite a difference with living oceanside with a fish market right around the corner But occasionally, I do give in to the temptation.
The local grocery store Peppers and Walmart both carry some frozen shellfish The choice in the Las Cruces, NM Sam's Club tends to be a lot nicer quality and that's where I have been getting most of my shellfish. That's also the reason why I saved so much money by NOT going there anymore. :-)