Figure 2. Macrobenthic organisms modifying soft sediments based on their traits. 1) Snail with limited bioturbation capacity; 2) Fiddler crab bioturbating the sediment by constructing burrows; 3) Burrowing polychaete worm; 4) Polychaete transporting organic matter to the surface; 5) Bivalve filter feeding from the surface; 6) Amphipod modifying the sediment surface; 7) Hermit crab modifying the sediment surface and; 8) A gallery-dweller ghost shrimp (Orlando Lam-Gordillo, NIWA).