date:May 16, 2012
wing scientific evidence that hatchery fish can actually edge out wild populations.
Losing wild fish would mean losing the genetic diversity that has allowed salmon to survive for centuries. Unlike hatchery fish, wild salmon populations have a range of highly specialised adaptations to the natural environment. These adaptations not only help them return to their home streams to spawn, but also increase their ability to withstand environmental changes like increases in ocean temperature and ex