Fig. 2: Main effects of lipid differences on salmon geographical identification.
From: Data fusion and multivariate analysis for food authenticity analysis

a Histogram of lipid biomarkers amongst Alaskan salmon, Icelandic farmed salmon, Icelandic wild salmon, Norwegian salmon, and Scottish salmon. b PCA score plot and c LDA plot of REIMS spectral data (m/z 200–1200) obtained from five salmon groups. For Mass spectra fingerprints of five groups, see Supplementary Fig. S1.