Unfair competition

GM 'hybrid' fish pose threat to natural populations, scientists warn | Environment | guardian.co.uk

The offspring of genetically modified salmon and wild brown trout are even faster growing and more competitive than either of their parents, a new study has revealed, increasing fears that GM animals escaping into the wild could harm natural populations.

The aggressive hybrids suppressed the growth of GM salmon by 82% and wild salmon by 54% when all competed for food in a simulated stream.

 I am unconvinced there is a real need to be genetically modifying fish just to get them to grow faster.