Always ask where your seafood comes from. If they don't know, definitely don't buy it. These days I try to avoid anything from the Pacific Ocean and the Gulf of Mexico. The former is irradiated, the latter still full of chemicals from the last oil spill. Not that the Atlantic is much better or anything, but you got to eat something. I'll still do Alaskan crabs every so often. Never heard of anything coming from the Indian Ocean but I would avoid that like the plague.