There is a long research history addressing olfactory imprinting, natal homing, and non-natal
straying by anadromous salmon and trout (Salmonidae). In undisturbed populations, adult …

Large numbers of hatchery salmon spawn in wild populations each year. Hatchery fish with
multiple generations of hatchery ancestry often have heritably lower reproductive success …

Hatcheries have long produced salmonids for fisheries and mitigation, though their
widespread use is increasingly controversial because of potential impacts to wild salmonids …

Recreational fisheries (RF) are complex social-ecological systems that play an important
role in aquatic environments while generating significant social and economic benefits …

The release of domesticated conspecifics into the natural environment, whether deliberate
or accidental, has the potential to alter the genetic integrity and evolutionary trajectory of wild …

Conservation breeding programs such as zoos play a major role in preventing extinction, but
their sustainability may be impeded by neutral and adaptive population genetic change …

Lifetime reproductive success (LRS), the number of offspring produced over an organism's
lifetime, is a fundamental component of Darwinian fitness. For taxa such as salmonids with …

The release of captive-bred animals into the wild is commonly practised to restore or
supplement wild populations but comes with a suite of ecological and genetic …

Many salmonid populations are of conservation concern, and the release of hatchery-
produced juveniles is a frequently used measure to alleviate declines and increase harvest …

While the goal of supplementation programs is to provide positive, population‐level effects
for species of conservation concern, these programs can also present an inherent fitness …