Definition of infauna in English:

Share this entry


Pronunciation: /inˈfônə/


The animals living in the sediments of the ocean floor or river or lake beds. Compare with epifauna.
Example sentences
  • Reichardt found algal fragments on both sides of the Peninsula and suggested that algal material provided an additional carbon source to deep water benthic infauna.
  • In prior studies, we have argued that changes in sediment surface chemistry driven by biotic and physical disturbance affect recruitment decisions of infauna.
  • High densities of organisms that bind the sediment and modify wave-induced erosion potential can also mitigate wave disturbance effects on other infauna.



Pronunciation: /-ˈfônl/
Example sentences
  • Bivalves are aquatic suspension-feeders, inhabiting a variety of infaunal and epifaunal habitats and are particularly characterized by their ability to burrow, some of them even into rock and wood.
  • Life habit categories included epifaunal, infaunal, shallow infaunal, and deep infaunal.
  • The Baltic clam achieves highest densities in mesohaline habitats of the bay where it ranks first in benthic infaunal biomass.

For editors and proofreaders

Syllabification: in·fau·na

Share this entry

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.