"Genetically modified salmon have been approved for sale in the United States, but labeling complications have prevented them from coming to market. In Canada, however, according to a report released Friday by the company AquaBounty, five tons of genetically modified salmon filets have been sold so far.
Eric Hallerman, an expert in fisheries and fish genetics at Virginia Tech who is not affiliated with the company, predicts that we will see many more genetically modified fish and other animals on shelves around the world in the future.
The AquaBounty salmon, called AquAdvantage, is an Atlantic salmon that contains a growth hormone gene from a Chinook salmon. In the wild, salmon produce the hormone only when the conditions are right for rapid growth. In the AquAdvantage salmon, a regulatory switch from an ocean pout gene makes the fish produce growth hormone all the time, so the AquAdvantage salmon grow rapidly throughout the year."