marginally non-significantp = 0.12
For those taxonomic groups found consistently within both the infauna and epifauna, namely the amphipods and isopods (n = 22 samples), the difference in terms of δ 13 C, when accounting for site-specific variability as a random intercept in the LMM model, was marginally non-significant (infauna respective to epifauna: C = −1.7 ± 1.0 SE; t = −1.6; p = 0.12).