yolk-sac radius (Perry et al. ..... Mason et al. (1967) showed that fingerling hybrids between wild dams and domestic sires grow nearly as well in the hatchery.
190
Heterosis and outbreeding depression between strains of young-of-the-year brook trout (Salvelinus fontinalis) S. Granier, C. Audet, and L. Bernatchez
Abstract: Brook trout (Salvelinus fontinalis (Mitchill, 1814)) supports a lucrative fish aquaculture industry in Quebec and production of this species is mainly oriented to stock enhancement supporting sport fisheries. The aim of this study was to verify the expression of interstrain heterosis, i.e., increased performance of first generation hybrid progeny, during the first stages of development in brook trout. Two wild populations that were recently introduced to fish production in Quebec, the Laval (L) and the Rupert (R) strains, and a domestic strain (D) that is present in most Quebec fish farms were used in this study. The growth of 72 full-sibling families, representing three pure (,D
