Originally Posted by nascar or fishing?
Does anyone know if planted (genetically manipulated) fish can grow as large as naturally spawned fish?
As far as I know, the planted fish are artificially fertilized and raised, but they are not genetically manipulated in any way. Their genetics are the same as if the eggs and milt came together in the wild.
And yes, they can grow as large as fish spawned in the wild. The reason you catch so many small ones is that the stockers are just plain dumb. Not having grown up in the wild, they have "learned" that anything that looks like food, they can happily munch on without fear.
Any that survive after a year or two will be indistinguishable from trout that grew up in the wild.