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Minute organisms that float or swim on surface water or on a surface film of water.



the organisms that attach themselves to the surface film of water and move on either the top of the film (supraneuston) or the underside (infraneuston). The neuston includes protozoans, unicellular algae, water striders, Gyrinidae (whirligig beetles), gnat larvae, some Cladocera (water fleas), Pulmonata, and other small, for the most part freshwater, organisms. The marine infraneuston also includes inhabitants of the top of the water (0–5 cm), which occupy that region at all times or only at night (small crustaceans, fish fry).

References in periodicals archive ?
One family with neustonic larvae in the eastern North Pacific is the Cryptacanthodidae.
giganteus, and provide comparisons to similar neustonic larvae in the region.
rosea neustonic copepodits along the western coast of the Magellan region; ii) connect these ecological observations with oceanographic parameters (temperature, salinity, and dissolved oxygen) in order to define the conditions under which the M.
The first seven of these are exclusively benthic, neustonic, or terrestrial (Faubel, 1984; May, 1994).
Atka mackerel larvae are neustonic after hatching (Kendall and Dunn, 1985) and have large mouths (Gorbunova, 1962) capable of feeding on larger plank-tonic prey.
Neustonic species accounted for four of the five most common prey taxa.
Neutral hydrogen peroxide has been effective in a number of studies, but only at moderately high concentrations (10-50 ppm; [6]), for planktonic and some small neustonic organisms.
Community structure of neustonic zooplankton in the northern California Current in relation to oceanographic conditions, 22 p.
Among cnidarian-eating barnacles, Lepas anserifera feeds on neustonic medusae as one of many food items [13, 14], whereas Hoekia monticulariae, a balanomorph barnacle symbiotic with corals, seems to feed only on its host [4, 5].
Larvae 9 to 11 mm eat copepods and chaetognaths; larvae >11 mm eat exclusively neustonic fish larvae.