Also found in: Thesaurus, Medical, Encyclopedia, Wikipedia.
Related to meiofauna: macrofauna, infauna, Epifauna, supralittoral


n. pl. meiofauna or mei·o·fau·nas
Small animals of benthic sediments, such as nematodes and copepods.

[Greek meiōn, less; see mei- in Indo-European roots + fauna.]

mei′o·fau′nal adj.


(Zoology) the component of the fauna of a sea or lake bed comprising small (but not microscopic) animals, such as tiny worms and crustaceans
[C20: from Greek meiōn less + fauna]
ˌmeioˈfaunal adj
References in periodicals archive ?
However, in the marine literature psammic comunities are more often referred to as meiofauna.
In bivalves, the crystalline style reduces complex dietary mixtures of planktonic and benthic microalgae, zooplankton, meiofauna, bacteria, and organic detritus into forms that can be assimilated by the animal.
They cover design and analysis in benthic surveys in environmental sampling, characterizing the physical properties of seabed habitats, imaging techniques, diving, macrofauna and meiofauna techniques, deep-sea benthic sampling, measuring the flow of energy and matter in marine benthic animal populations, and phytobenthos techniques.
Many marine fishes enter productive estuarine habitats to forage on abundant zooplankton, meiofauna, molluscs, crustaceans and fishes.
Brown shrimp are benthic carnivores that consume polychaetes and meiofauna (McTigue and Zimmerman, 1998; Fry et al.
Meiofauna responses to an experimental oil spill in a Louisiana salt marsh.
of Massachusetts, Boston) present a model of geographic patterns of biodiversity in North Atlantic deep sea life (bacteria, meiofauna, macrofauna, and megafauna) that inhabit soft sediments covering much of the sea floor.
Queen Marys' School of Biological and Chemical Sciences working with Dorset Wildlife Trust has discovered more than 30 species of invertebrates called meiofauna, because they are smaller than half a millimetre, and over 100 single-celled species (ciliates) in less than two months.
The present paper evaluates the applicability and the performance of three sampling methods--Jar, Manual Removal and modified Ekman Dredge--for microfauna and meiofauna adhered or associated with aquatic macrophytes in the inland ecotone littoral zone of Espinhaço Mountain Range Biosphere Reserve, Minas Gerais state, Brazil.
The open brackish-water bays of the Baltic Sea in Finland (Tvarminne Bay and the mouth of the Kyrojoki River) harbour a meiofauna consisting of a mixture of brackish--and freshwater species (Keynas & Keynas, 1978; Merilainen, 1988).