Fig. 8
Ratio of the concentration of thiamine to the content of lipid and concentration of oleic acid (18:1n-9) and docosahexaenoic acid (22:6n-3) as a function of the age of sprat and herring with sampling areas and seasons 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