Browsing Brage IMR by Author "Nævdal, Gunnar"

Now showing items 41-60 of 60

    • Significance of population genetics on management of herring stocks. 

      Jørstad, Knut Eirik; Nævdal, Gunnar (ICES CM Documents;1981/H:64, Working paper, 1981)

    • Skreiinnsiget 1969 

      Monstad, Terje; Nakken, Odd; Nævdal, Gunnar (Fisken og havet;1969 - Nr. 2, Research report, 1969)

    • Skreiinnsiget 1969 

      Monstad, Terje; Nakken, Odd; Nævdal, Gunnar (Journal article, 1969)
      Denne artikkelen gir en oversikt over fordelingen av skrei i Lofoten gjennom sesongen 1969, basert på ekkoloddobservasjoner fra tre fartøyer. M/S «Havdron» krysset langs yttersiden av Lofoten og Vesterålen to ganger: 14.-16. ...

    • Sources of variation in weight and length of Atlantic salmon 

      Nævdal, Gunnar; Lerøy, Rita; Møller, Dag (Fiskeridirektoratets skrifter, Serie Havundersøkelser, Research report, 1983)
      Variances of 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. Higllly significant ...

    • 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 ...

    • Status on serological studies on marine mammals in Norway 

      Nævdal, Gunnar (ICES CM Documents;1971/N:11, Working paper, 1971)

    • Studies on associations between genotypes and growth rate of 0-group cod 

      Jørstad, Knut Eirik; Nævdal, Gunnar (ICES CM Documents;1992/G:66, Working paper, 1992)
      The aim of the present study was to investigate genotype dependent growth rate in young cod. The material of 0-group cod was collected from pond produced cod in western and northern Norway, and analysed for genotype ...

    • Studies on blood proteins in herring 

      Nævdal, Gunnar (Fiskeridirektoratets skrifter, Serie Havundersøkelser, Research report, 1969)
      1. Hemoglobins and serum proteins of herring have been analyzed by agar gel electrophoresis (hemoglobins) and combined starch and agar gel electrophoresis (serum proteins). The material comprises twelve samples from the ...

    • Studies on blood proteins of mackerel 

      Nævdal, Gunnar (Fiskeridirektoratets skrifter, Serie Havundersøkelser, Research report, 1970)
      1. 14 samples of mackerel, about 1800 specimens, from the North Sea and the Norwegian Coast were analysed by agar gel electrophoresis (hemoglobins) and combined starch and agar gel electrophoresis (serum proteins and ...

    • Studies on haemoglobin genotypes in turbot and their relation with growth 

      Imsland, Albert K.; Nævdal, Gunnar; Thorkildsen, Solveig (ICES CM Documents;1994/F:16, Working paper, 1994)
      Turbot, Scophthalmus maximus, were kept in tanks and weighed every month for about two years. Haemoglobins of 90 untagged and 52 individually Pit tagged fish were analysed by agar gel electrophoresis. A polymorphic system ...

    • Studies on hemoglobins and serum proteins in sprat from Norwegian waters 

      Nævdal, Gunnar (Fiskeridirektoratets skrifter, Serie Havundersøkelser, Research report, 1968)

    • Studies on hemoglobins of some gadoid fishes 

      Møller, Dag; Nævdal, Gunnar (Fiskeridirektoratets skrifter, Serie Havundersøkelser, Research report, 1969)
      1. Hemoglobin of tusk, forked hake, ling, blue ling, hake, pout, Norway pout, pollach, coalfish, haddock and blue whiting were studied by agargel electrophoresis. 2. Both inter- and intraspecific variations in hemoglobin ...

    • Studies on serum esterase in herring and sprat 

      Nævdal, Gunnar (Fiskeridirektoratets skrifter, Serie Havundersøkelser, Research report, 1969)
      1. Herring and sprat serum esterase has been studied by combined starch and agar gel electrophoresis at pH 9.0. Both strong and weak bands which represesented esterase activity occurred in both species. 2. Most herring ...

    • The effect of different photoperiods on growth and smoltification in Atlantic salmon (Salmo salar) 

      Stefansson, Sigurd O.; Hansen, Tom; Nævdal, Gunnar; Torrissen, Ole (ICES CM Documents;1985/F:32, Working paper, 1985)
      Photoperiod has been implicated as an effective mediator of growth and smelting in Atlantic salmon (Salmo salar). To investigate this 0+ parr of Atlantic salmon were treated with three different photoperiods: 24Light:0Dark; ...

    • Variasjoner i veksthastighet og alder ved kjønnsmodning hos regnbueaure 

      Møller, Dag; Holm, Marianne; Lerøy, Rita; Nævdal, Gunnar (Fisken og havet - Serie B, Working paper, 1976)

    • Variasjoner i yngelsvekst hos laks og regnbueaure 

      Møller, Dag; Nævdal, Gunnar (Fisken og havet - Serie B, Working paper, 1973)

    • 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)

    • Variation in growth rate and age at first maturation in rainbow trout 

      Nævdal, Gunnar; Lerøy, Rita; Møller, Dag (Fiskeridirektoratets skrifter, Serie Havundersøkelser, Research report, 1981)
      The present report is an account of the main results of a series of experiments on selective breeding of rainbow trout. The experiments started in 1972, but were discontinued in 1979 because IPN virus was detected in the ...

    • Variation in growth rate and age at sexual maturity in Atlantic salmon 

      Nævdal, Gunnar; Holm, Marianne; Møller, Dag; Østhus, Ole Dag (ICES CM Documents;1976/E:40, Working paper, 1976)

    • Vekstvariasjoner hos laks i oppdrett 

      Nævdal, Gunnar; Holm, Marianne; Lerøy, Rita (Fisken og havet - Serie B, Working paper, 1974)