A comparison of growth (fork length and mass) between genetic cross groups (listed as mother x father, where W is wild-born and H is hatchery-born) and rearing environments during May and June 2008.

Whereas none of the genetic groups were significantly different within their rearing environment, all of the hatchery-reared fish were greater in length and mass than the wild-reared smolts (Mann-Whitney U test, P<0.05).