Blar i ICES CM documents authored by IMR scientists (1949-2011) på forfatter "Lerøy, Rita"
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Growth rate and age at sexual maturity of Atlantic salmon smoltifying at one and two years of age
Nævdal, Gunnar; Bjerk, Øyvind; Holm, Marianne; Lerøy, Rita; Møller, Dag (ICES CM Documents;1978/F:23, Working paper, 1978)Postsmolt growth rate and age at first maturation are compared for sibgroup or population groups of salmon originating from Norwegian rivers and fish farms. Generally high correlations were found between corresponding ... -
Individual growth rate and age at first sexual maturity in atlantic salmon
Nævdal, Gunnar; Holm, Marianne; Lerøy, Rita; Møller, Dag (ICES CM Documents;1977/E:60, Working paper, 1977) -
Individual growth rate and age at sexual maturity in rainbow trout
Nævdal, Gunnar; Holm, Marianne; Lerøy, Rita; Møller, Dag (ICES CM Documents;1978/F:22, Working paper, 1978)Growth rate and possible connection between growth rate and age at sexual maturity were studied on individually tagged rainbow trout from different sib groups. Great variation in growth rate and age at first sexual ... -
Sources of variations in weight and length of Atlantic salmon
Nævdal, Gunnar; Lerøy, Rita; Møller, Dag (ICES CM Documents;1981/F:39, Working paper, 1981)Variance for weight and total length of four year classes of farmed Atlantic salmon after two years in the sea were distributed on strain, family, maturing/immature (after two winters) and sex. Highly significant variation ... -
Studies on environmental conditions and influence on salmon farm production
Ervik, Arne; Jørstad, Knut Eirik; Farestveit, Eva; Wennevik, Vidar; Eriksen, Anne Grete; Lerøy, Rita (ICES CM Documents;1990/F:35, Working paper, 1990)The study was undertaken to investigate how environmental conditions influence growth of Atlantic salmon, and how different sub groups of salmon respond to different environment. The fish were raised at five different ... -
Variation in age at sexual maturity in rainbow trout
Nævdal, Gunnar; Holm, Marianne; Lerøy, Rita; Møller, Dag (ICES CM Documents;1975/M:23, Working paper, 1975)