Abstract
Strains of rainbow trout ( Salmo gairdneri) were evaluated for suitability for use in extensive aquaculture operations in central Canada. Matched plantings were made of three strains of trout in a number of small, shallow, eutrophic, winterkill lakes. Growth and survival were measured at the time of harvest. There were significant effects of the genotype and the environment and significant genotype—environment interactions in the differential growth and survival of the trout.
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