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Table 4 Summary of top 10 PCA loadings based on ln(x + 1)-transformed and standardized fatty acid (FA) data of the fish species Ctenolabrus rupestris, Pomatoschistus minutus, Pomatoschistus pictus, Myoxocephalus scorpius and Taurulus bubalis collected from 2009 to 2011, expressed in [µgFA/µgC] explaining 69.1 % of variability on the first two axes (see Fig. 2)

From: Trophic niche partitioning of littoral fish species from the rocky intertidal of Helgoland, Germany

Variable PC1 Variable PC2
20:0 −0.297 18:3n4 0.376
18:1n7 −0.293 18:3n6 0.366
22:1n9 −0.293 16:0 −0.307
24:1n9 −0.287 18:1n9 −0.290
20:4n3 −0.284 22:0 0.278
22:2n6 −0.278 22:6n3 (DHA) −0.241
24:0 −0.260 18:0 −0.238
18:0 −0.235 16:1n7 −0.231
18:1n9 −0.235 22:2n6 0.218
16:0 −0.231 20:4n6 −0.203