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Related to infaunal: Epifaunal, Epifauna, faunas


Aquatic animals, such as clams or burrowing worms, that live beneath the surface of a sea or lake floor.

[in- + fauna.]

in′fau′nal adj.


(Zoology) zoology of or relating to infauna
References in periodicals archive ?
1992), being an important prey for fish (Ansell & Gibson 1993, Del Norte-Campos & Temming, 1994), crustaceans (Pihl, 1985), and wading birds (Walter & Becker 1997), and a predator of infaunal organisms like bivalves (Pihl & Rosenberg 1984, Van der Veer et al.
Tanner crabs consume not only a variety of infaunal prey, including bivalves, polychaetes, and other crustaceans, but also detrital material (Jewett and Feder, 1983), which presumably occurs in higher concentrations in silty and muddy sediments than in coarser sediments.
Thus, early infaunal ecologists employed approaches similar to those developed by plant ecologists.
They had harvested the infaunal tairagi clam by the traditional method of using diving helmets but the clam population had declined drastically since the Isahaya Bay Reclamation Work began.
Salinity, floods and the infaunal macrobenthic community of the St Lucia estuary, KwaZulu-Natal, South Africa.
Mercer (1989) reported that small juvenile Atlantic croakers (15-30 mm), which have already shifted to a demersal mode, fed mostly on zooplankton and later shift to feeding on infaunal and epibenthic organisms.
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.
Ammobaculites is an infaunal deposit feeder that lives in muddy sediments with brackish to normal-marine salinities from marsh to bathyal environments [22] and it also tolerates low oxygen levels.
Siderite within the Barnsdall Formation of northeastern Oklahoma occurs in four varieties: (1) large nodules lacking a distinct central nucleus, concentrated in horizons bearing articulated crinoids; (2) small concretions with distinct skeletal nuclei consisting of infaunal bivalves and inarticulate brachiopods occurring in horizons relatively lacking in articulated crinoids and crinoid material; (3) large sideritized burrows occurring above crinoid horizons; and (4) concretions nucleated around former sites of soft tissue in large crinoids and productid brachiopods.
The associated monospecific, sporadic, simple burrowing, infaunal trace fossil Skolithos Haldeman 1840, as well as the presence of the putative horseshoe crab trackway on the same bedding surface as a previously documented ancestral horseshoe crab, strongly suggests a marginal marine-brackish water origin for the strata.