Figure 1. Main traits modalities of two contrasting macrobenthic fauna. a) Nereid worm (Polychaeta) and b) Hermit crab (Crustacea). Functional traits displayed: Feeding mode (deposit feeder and scavenger); Bioturbation (bioturbator and surface modifier); Body size (medium and large size); Morphology (vermiform and hard shell); Living habit (burrower and surface crawler) (Orlando Lam-Gordillo, NIWA).