The risk of this GM species escaping into the environment is infinitesimally small. http://arstechnica.com/science/2015/11/fda-approves-first-gmo-food-animal-a

The risk of this GM species escaping into the environment is infinitesimally small. http://arstechnica.com/science/2015/11/fda-approves-first-gmo-food-animal-atlantic-salmon/ http://arstechnica.com/science/2015/11/fda-approves-first-gm... Key part: "The agency also assessed potential environmental effects and the proposed containment method. In accordance with the FDA’s approval, the fish must be kept in inland tanks, specifically tanks at two facilities—one in Canada and the other in Panama. The Canadian facility will keep the breeding stock, and the Panama site will be used to raise the fish to market-size. Both facilities have multiple, redundant physical barriers to keep the fish and eggs from escaping, the agency noted. Tanks have covers, nets, jump fences, covered drains, and closed septic systems. In addition, conditions of natural water systems surrounding the Panama site, particularly the warm temperatures, are expected to be lethal to the salmon. The Panama site will raise all-female, sterile fish."