• Esterase variation in herring studied by isoelectric focusing 

      Nævdal, Gunnar; Thorkildsen, Solveig; Lemvig, Svend (ICES CM Documents;1997/AA:1, Working paper, 1997)
      Few suitable genetic characteristics for studying herring population structure are available, and the main aim of the study reported here has been to reveal traits which display useful genetic variations for application ...
    • Population structure of Ammodytes marinus in the Northeast Atlantic 

      Nævdal, Gunnar; Lahn-Johannessen, John; Reinert, Jákup; Thorkildsen, Solveig (ICES CM Documents;1996/G:23, Working paper, 1996)
      Samples of the lesser sandeel species Ammodytes marinus Raitt were collected from Iceland, Denmark, Scotland, the Faeroe Islands and central and northern North Sea, and analysed for frequency distributions of genotypes ...
    • 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 ...