Bioturbation is the reworking of sediments by benthic organisms through burrowing, feeding, and locomotion; classic bioturbators include infaunal annelids (polychaete worms), bivalves (clams), burrowing echinoderms (heart-urchins), and other worm-like burrowers (lugworms).
Annelids (polychaetes), clams (bivalve molluscs), heart-urchins (irregular burrowing echinoids), and lugworms (Arenicola, classic sediment-reworking polychaetes) are all well-documented infaunal bioturbators that actively rework and redistribute...
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