hatchery

Do Hatchery Salmon Influence the Migration of Wild Salmon? 

Do Hatchery Salmon Influence the Migration of Wild Salmon? 

Many salmon populations in the Salish Sea are bolstered by releases of juvenile fish that are raised in hatcheries. Juvenile salmon are particularly social creatures, which means many wild salmon may school with (and be influenced by) these hatchery-released fish.

Researchers have long suspected that the seaward migration of hatchery fish might inspire wild salmon to migrate out to sea along with them at times when they might not have otherwise made the trek.