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Related to epifaunal: infauna, faunas


Aquatic animals, such as starfish, flounder, or barnacles, that live on the surface of a sea or lake bottom or on the surface of a submerged substrate, such as rocks or aquatic plants and animals, but that do not burrow into or beneath the surface.

ep′i·fau′nal adj.


(Zoology) zoology relating to epifauna
References in periodicals archive ?
1998), epifaunal organisms, and demersal organisms including shrimp and fishes (Oh et al.
Studies in which bottom grabs were used to sample organisms in unconsolidated sediments have revealed a measurable impact from trawling on an infaunal community in the North Sea from a single pass of a beam trawl, even in an environment that had been trawled heavily for decades (Reiss et ah, 2009), but in a study in South Africa, no measurable impacts of additional trawling to the epifaunal community in a continuously trawled area (Atkinson et ah, 2011).
Diversity and structure of epifaunal communities on mollusk valves, Buzzards-Bay, Massachusetts.
Scales of life range across microbial, meiofaunal, mesofaunal, maerofaunal, and megafaunal; modes of life include planktonic, pelagic, nektic, benthic (motile and sessile), epifaunal, semi-infaunal, and infaunal.
The lack of plugs in many specimens likewise precludes their origin as a vertically-oriented burrow or as an escape trace by an infaunal or epifaunal animal like an anemone.
The Mississippi samples consisted of two growth forms of calcareous epifaunal bryozoans--erect and encrusting.
Trochammina settles as an infaunal or epifaunal deposit and plant feeder in a wide range of environments and water depth [42].
1999), and MacEachern and Gingras (2007), who suggested that these conditions characterize brackish-water trace fossil assemblages hy: 1) a low diversity; 2) domination by monospecific suites; 3) traces typically present in marine rather than freshwater environments; 4) a trend toward simple burrowing structures formed by opportunistic organisms; (5) sporadically distributed ichnogenera; and 6) infaunal traces predominating over epifaunal ones.
Site Epifaunal Embeddedness Velocity/ Sediment Channel Substrate Depth Deposition Flow Status 1 19 19 18 18 15 2 15 18 15 17 16 3 18 18 19 18 15 4 18 18 19 16 18 5 19 18 18 16 18 6 19 18 17 18 15 7 16 18 19 19 17 8 16 15 17 17 15 9 18 19 16 18 17 Mean 17.
A comparison of epifaunal communities associated with the stems of salt marsh grasses Phragmites australis and Spartina alterniflora.
epifaunal substrate/available cover, riffle quality, embeddedness, channel alteration, sediment deposition, frequency of riffles, channel flow status, bank vegetative protection, bank stability, and riparian vegetative zone width.