bioturbation

https://doi.org/10.1351/goldbook.14504
Group of processes whereby organisms affect the structure of sediment.
Note: Bioturbation consists of two processes, particle mixing and irrigation, mainly executed by infaunal organisms but also by epifaunal organisms and bottom-feeding fish.
Source:
PAC, 2009, 81, 829. (Glossary of terms used in ecotoxicology (IUPAC Recommendations 2009)) on page 853 [Terms] [Paper]