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Definition of epifauna in English: epifaunanoun ˈɛpɪfɔːnəˈepəˌfônə mass nounEcology Animals living on the surface of the seabed or a riverbed, or attached to submerged objects or aquatic animals or plants. 〔生态〕（生活在海床或河床表面的）底上动物。比较INFAUNA Compare with infauna Example sentencesExamples - Episodically, stronger storm currents could dislodge rocks with attached algae, mussels, and other epifauna, exposing them to transport ashore by storm waves.
- Analyses were also performed by splitting the epifauna into mobile, nonmobile, and attached organisms, but these analyses were not included here because the results are not substantially different from those presented here.
- Even if an intertidal zone existed, sea ice disturbance, as well as the unstable, gravelly substrate, would make it uninhabitable by intertidal benthos, epifauna, or epiphytes.
- The group was the principal epifauna of the Paleozoic.
- Although such ammonites are known in the English Jurassic, it clearly does not apply to these Lower Lias ammonites from Dorset which are largely devoid of epifauna.
Derivativesadjective Ecology Continued work on crinoids in the 21st century promises to provide significant advances both for understanding the evolutionary history of crinoids and for understanding the history of epifaunal benthic communities through time. Example sentencesExamples - Within a particular paleoenvironment the organisms could further subdivide resources by establishing epifaunal, and possibly infaunal, tiers.
- This suggests that the number of predatory gastropods (taxa or individuals) may not be driving the decrease in epifaunal richness in these samples.
- 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.
Definition of epifauna in US English: epifaunanounˈepəˌfônə Ecology Animals living on the surface of the seabed or a riverbed, or attached to submerged objects or aquatic animals or plants. 〔生态〕（生活在海床或河床表面的）底上动物。比较INFAUNA Compare with infauna Example sentencesExamples - Analyses were also performed by splitting the epifauna into mobile, nonmobile, and attached organisms, but these analyses were not included here because the results are not substantially different from those presented here.
- Although such ammonites are known in the English Jurassic, it clearly does not apply to these Lower Lias ammonites from Dorset which are largely devoid of epifauna.
- Episodically, stronger storm currents could dislodge rocks with attached algae, mussels, and other epifauna, exposing them to transport ashore by storm waves.
- The group was the principal epifauna of the Paleozoic.
- Even if an intertidal zone existed, sea ice disturbance, as well as the unstable, gravelly substrate, would make it uninhabitable by intertidal benthos, epifauna, or epiphytes.
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