Does the location of where an octopus was imported from determine the flavor/quality of the meat?

I recently bought frozen octopus that was caught and imported from Portugal because the local stores were sold out of the octopus from Spain. There was also a package of octopus imported from Vietnam but the seafood department employee said that wasn't as good. Does anyone know if there is a difference in taste or quality of the octopus meat depending on where it was caught? If so, how extreme is the difference and will people notice when they try it?