MOESM4 of Fatty acid composition of sprat (Sprattus sprattus) and herring (Clupea harengus) in the Baltic Sea as potential prey for salmon (Salmo salar)

Additional file 4. Ratio of the concentration of thiamine to the concentration of fatty acids and their sums as a function of the age of sprat and herring with sampling areas (Baltic Proper, Bothnian Sea and Gulf of Finland) and seasons (autumn and spring) combined. The coefficient of determination (R 2) and significance of the fitted model are given. Each symbol refers to a pool (whole body homogenate), which for sprat consisted of 12–92 specimens and for herring 7–133 specimens.