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 (plo͞o′stən, -stŏn′)
Macroscopic organisms that float or swim on the surface of a body of water.

[Greek pleusis, sailing; see pleu- in Indo-European roots + (plank)ton.]

pleus·ton′ic (plo͞o-stŏn′ĭk) adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(ˈpluːstən; -stɒn)
(Biology) a mass of small organisms, esp algae, floating at the surface of shallow pools
[C20: from Greek pleusis sailing, from plein to sail; for form, compare plankton]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈplu stən, -stɒn)

a buoyant mat of weeds, algae, and associated organisms that floats on or near the surface of a body of fresh water.
[1940–45; pleus- (< Greek pleûs(is) sailing]
pleus•ton′ic, adj.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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The annelid class Oligochaeta--considered by many authors as a bioindicator of environmental conditions is represented by a large number of genera and species present in continental waters within the benthic, pleuston, and periphyton communities (Hellawell, 1986; Rosenberg and Resh, 1993).
Both host species inhabits in routed and free floating plants forming part of benthos coast and pleuston from wetlands (Poi de Neiff & Neiff 2006; Poi de Neiff, Galassi & Franceschini, 2009).
Se evaluo el grado de avance del proceso de eutrofizacion del lago Titikaka por medio de la evaluacion de las macrofitas (pleuston y limnofitas), de la diversidad de fitoplancton, de parametros fisicoquimicos (pH, turbidez, [DBO.sub.5], nitrogeno total y fosforo soluble) y microbiologicos (coliformes fecales termotolerantes) en cuatro localidades del lago.
benthic or floating vegetation) and halfbeak eggs would be completely lost if pleuston was discarded from ichthyoplankton samples.
Detached seaweeds or fragments do not die, but can live as drifting pleuston by making use of the nutrients of the pelagic environment.
-- The occurrence of a taxonomically diverse assemblage of insects in the pleuston of Cox Bay in the central Texas coast is documented.
bouvieri is omnivorous, consuming a wide spectrum of items, from algae that lives in plankton, benthos and pleuston, to insects.