Definition of infauna in English:


Line breaks: in|fauna
Pronunciation: /ˈɪnfɔːnə


[mass noun] Ecology
  • The animals living in the sediments of the ocean floor or river or lake beds. Compare with epifauna.
    More 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.



More 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.

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