Fast-growing GM fish approved by scientists

The first GM salmon could be on American dining tables within two to three years, and possibly on British plates soon after that.

It would open the way for the genetic modification of other fish and food animals into what critics are calling 'Frankenfood,' reports the Daily Mail. However, many consumers will raise questions about the impact on human health and the environment.

Critics of GM food fear the bio-technology leads to the creation of mutant misshapen fish and could harm wild fish populations if they escape. Research on GM trout in Canada found that while they grew faster and were much bigger, a number developed misshapen heads and bloated bodies.

The firm behind the GM Atlantic Salmon, Aqua Bounty, says its fish are normal but for the fact they grow up to three times more quickly. As a result, the AquAdvantage Salmon reach a market weight of around three kg in 16-18 months instead of the three years for farmed fish.

In theory, they would reach around six kg after three years, which would be double the size of most natural salmon of the same age.

The growth is speeded up by the insertion of two genes, one linked to the production of growth hormone and a second to ensure growth continues even in very cold temperatures.
Now, two expert reports commissioned by the US Food and Drug Administration have concluded it is safe for GM salmon to go into production.