There are no biologically relevant differences. AquAdvantage salmon contained the expected amounts of nutritionally important omega-3 and omega-6 fatty acids at the appropriate ratio for a fish source.
People who are allergic to Atlantic salmon will likely be allergic to AquAdvantage Salmon because it is a finfish-- one of the eight most allergenic foods in the US-- not because it has been genetically engineered.
Moreover, increased salmon consumption leads to lowered risk of heart disease. Coronary heart disease is the number one cause of death in U.S. (National Center for Health Statistics, 2000). A study by Lutter and Tucker (2003) revealed that the marketing of GM salmon will lower salmon prices and increase consumption of salmon, an exceptionally good source of omega-3 fatty acids linked to lower risk of heart disease. The resulting increase in omega-3 intake will prevent 600 to 2600 deaths per year in the U.S.
Lutter and Tucker (2003):
A 1% change in salmon consumption should increase total n-3 intake by 8.2%, assuming n-3 intake from other sources is unchanged.
Empirical research suggests that a 1% decline in the price of farm-bred salmon leads to a 1% increase in consumption.
In French fish markets, a 1% drop in international salmon prices lowers retail prices by 0.165%.
A 1% decrease in the cost of farmed salmon will lead to a .165% drop in the retail price of salmon.
GM salmon would reduce the risks of fatal CHD by about 0.2%. Since about 720,000 Americans aged 35 and older died from heart disease in 1999 (National Center for Health Statistics, 2000), a reduction of 0.2% amounts to about 1400 deaths per year.
Willingness to pay: $8.22 to reduce risk of heart disease by 1 in 1 million (Cameron, DeShazo, Johnson, 2009)
VSL calculation: 8.22/.000001=$8,220,000
GM salmon reduces fatalities by 1440
1440*8,220,000 = $11.84 billion (value of lives saved)