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Pleuston
(redirected from pleustonic)

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Pleuston 

the aggregate of aquatic organisms that live on or near the surface of a body of water. Most diverse are the representatives of marine pleuston. Many pleustonic organisms are characterized by the formation of gas chambers (for example, the siphonophore Physalid) or the excretion of foamy rafts of bubbles (for example, the sea anemone Minyas and the mollusk Janthind). Others use the surface of the water as a support (for example, the mollusk Glaucus). Pleustonic plants include sargasso.
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Marine pleustonic (animals at the air-sea interface--Cheng, 1975) insects have three origins: 1) those few species that normally inhabit this surface, mostly water striders of the genus Halobates (Cheng, 1973); 2) normally terrestrial-aerial species transported seaward by air currents (Myers, 1926; Bowden and Johnson, 1976; Locke and Corey, 1986); and 3) normally terrestrial-aerial and freshwater species transported seaward by water currents (Zaitsev, 1970).
Fluvial transport of terrestrial and aquatic insects into an estuary ... by Neck, Raymond W. / The Texas Journal of Science
 
 
 
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