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Definitions
Relative fitness: (R/Sh) /(R/Sw)
Hatchery fish: born in the hatchery
Wild or natural-origin fish: born in the natural environment
Hatchery generations: number of generations the hatchery had been operating
Notes:
Hatchery generations reflects the number of salmon generations (using the modal age at maturity) that the population has been propagated in the hatchery. It does not necessarily reflect the number of generations of genetic isolation.