Table 1 Fatty acid markers selected for this study.

From: Seasonal and spatial dynamics of the planktonic trophic biomarkers in the Strait of Georgia (northeast Pacific) and implications for fish

Fatty acid / trophic marker

Source/index

Reference

16:0

Long-term energy storage, herbivory

Daalsgard et al. (2003)

18:1n7

Bacteria

Stevens et al. (2004)

18:1n9

Trophic level, carnivory

Daalsgard et al. (2003), Stevens et al. (2004)

18:2n6

Terrestrial detritus

Daalsgard et al. (2003), Henderson & Tocher (1987)

18:3n3

Green algae

Li et al. (2002)

20:5n3

Diatoms

Mayzaud et al. (1990)

22:6n3

Flagellates

Daalsgard et al. (2003)

22:6n3/20:5n3 (DHA/EPA)

Food quality, flagellates

Sargent and Lee (1975), Parrish et al. (2015), Budge and Parrish (1998)