i live hundreds of miles from the ocean, but what my local large specialty market has is pretty good for my uses. certainly better than regular grocery store fair i've found in the area. i've never purchased any of their live fish, perhaps i should. anyway, i was shocked that they were out of the tuna i usually buy, and i was in a hurry, so i just bought a filet. oh, recipe wise i don't do anything special. i marinate whatever vegetables i want to use (last night was red cabbage, green onion, serrano peppers, shallot, garlic, cilantro and tomatoes) in lime juice with some salt and pepper until the flavors meld, then add the fish and serve when it looks ready.