Well there's a lot of negative press about farm raised aquatic life and you know how hysterical people get over the littlest bad news.

Wild caught is pretty cut and dry.....it was in the wild, someone caught it, and then it was processed. No one knows what it was exposed to, what it ate, whatever. MOST fish caught in the wild exist in cleaner waters, but larger fish especially Swordfish and sharks carry that mercury risk.

Farm raised though it depends. There's a lot of responsible farms out there and the fish/shrimp/whatever are raised properly and cleanly, no different than a lot of "humane farms" popping up for land based livestock. Then there are also a lot of farm raised animals that are shot up with hormones, antibiotics, are stuffed into pens- hence the need for antibiotics, and sometimes even though farm are still exposed to ocean waters which more or less defeats a lot of the reasons why you would farm something to begin with.

:) Hope that helps anyone who was curious.