Seventy percent of salmon at the fish counter grow up in underwater pens packed to the gills. These farmed fish tend to be considered higher in contaminants and unhealthy fats than wild salmon caught ...

Two young coho salmon swim from freshwater to saltwater for the first time. One was born in the wild; the other was born in a hatchery and released into the same river. The wild-born salmon is more ...

Salmon born in captivity become domesticated in as little as one generation, a new study finds, explaining why hatchery-born fish don't do as well as wild-born ones in Oregon rivers. Researchers ...

Salmon born in captivity become domesticated in as little as one generation, a new study finds, explaining why hatchery-born fish don't do as well as wild-born ones in Oregon rivers. Researchers ...

Steelhead trout that are originally bred in hatcheries are so genetically impaired that, even if they survive and reproduce in the wild, their offspring will also be significantly less successful at ...

A new study shows that cichlid fish reared in larger social groups from birth display a greater and more extensive range of social interactions, which continues into the later life of the fish.

A new study shows that cichlid fish reared in larger social groups from birth display a greater and more extensive range of social interactions, which continues into the later life of the fish.