Fig. 8

Biplot based on PCA and subsequent paired SIMCA test results for the proportions of fatty acids, the concentrations of total thiamine (TotTHIA) in the liver, muscle and ovaries, the lipid content in muscle, the concentrations of malondialdehyde (MDA) in the liver and carotenoids in muscle, and the hepatic activities of glucose-6-phospahate dehydrogenase (G6PDH) and 7-ethoxyresorufin-O-deethylase (EROD) in 2-sea-year-old salmon at different locations along the spawning run (see legend in Fig. 1). The rings encompass each of the salmon from the five sampling locations. The closer the groups are on the biplot, the more similar they are. In the SIMCA contingency table, significant differences between the two compared groups are marked by “x”