Fig. 3

PCA Biplot of fatty acid proportions (% of total fatty acids) of Limnocalanus macrurus (LM) (number of samples; n = 7) and mixed plankton (PL) (n = 3), collected in the southern Bothnian Sea in June 12, July 1 and September 9 2013. Prior to the PCA, data was standardised to a mean of zero and unit variance