The FDA has approved the first genetically modified (GMO) animal product, AquAdvantage Salmon, to be used for food. This version of Atlantic salmon grows faster than non-GMO farm-raised Atlantic salmon.
However, in their approval they stated "food from AquAdvantage Salmon is as safe to eat and as nutritious as food from other non-GE Atlantic salmon and that there are no biologically relevant differences in the nutritional profile of AquAdvantage Salmon compared to that of other farm-raised Atlantic salmon."
The GMO salmon may be raised only in land-based hatchery tanks in two facilities in Canada and Panama.
I understand there is no evidence (yet) that this is dangerous; but on the other hand there have to be some differences and I would prefer not to risk possible harmful effects. As well, there was no comment on flavor.
I think this should be labelled. To avoid the GMO salmon stay with wild salmon (and hope it is not mislabeled!).
http://www.fda.gov/NewsEvents/Newsroom/PressAnnouncements/ucm473249.htm