oligotrophy


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Related to oligotrophy: oligotrophic

ol·i·go·tro·phic

 (ŏl′ĭ-gō-trō′fĭk, -trŏf′ĭk, ō′lĭ-)
adj.
Lacking in plant nutrients and having a large amount of dissolved oxygen throughout. Used of a pond or lake.

ol′i·got′ro·phy (-gŏt′rə-fē) n.
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.

oligotrophy

(of lakes) the quality of containing a low accumulation of dissolved nutrient salts, thus supporting little plant or animal life and having a high oxygen content owing to the low organic content. — oligotrophic, adj.
See also: Environment
-Ologies & -Isms. Copyright 2008 The Gale Group, Inc. All rights reserved.
Translations

oligotrophia, oligotrophy

n. oligotrofia, nutrición deficiente.
English-Spanish Medical Dictionary © Farlex 2012
References in periodicals archive ?
Influence of fish density and relative productivity on growth of kokanee in ten oligotrophy lakes and reservoirs in Idaho.
(2009), however, demonstrated that both mussels (Mytilus edulis) and scallops (Pecten maximus [Linnaeus, 1758]) from oligotrophy environments continued to feed at low seston concentrations (0.15 mg [L.sup.-1]), a finding that contradicts some previous reports of cessation of feeding under low particle loads.
On the response of calcareous dinoflagellates to oligotrophy and stratification of the upper water column in the equatorial Atlantic Ocean.
Thus the oligotrophy of waters became something to be protected, rather than improved.
The Mediterranean is characterized by a plethora of phenomena of relevance not only for the climate of the region but also for impacts on ecosystem and society: among others, heavy precipitation events, flash floods, Mediterranean cyclones and associated strong winds, strong air-sea exchanges and associated open-sea deep-water formation, aerosol-radiation-cloud interactions, Mediterranean surface circulations, Mediterranean dense water formation and associated Mediterranean thermohaline circulation, droughts, heat waves, medicanes, strait transports, and Mediterranean Sea oligotrophy and dynamic of the deep chlorophyll maximum.
At our site, soil oligotrophy was caused by a combination of historical low soil fertility, immobilization of nutrients in the large and fast growing pine biomass (Berthrong, Jobbagy, & Jackson, 2009), and by litter recalcitrance to decomposition delaying nutrient cycling, all common traits of pine plantations (Cavalier & Tobler, 1998; Craine & Orians, 2004; Gomez, Paolini, & Hernandez, 2008; Leon, Gonzalez, & Gallardo, 2011).
They have also been cited as highly tolerant to different environmental conditions, and some species (Discostella pseudostelligera, Stauroneis smithii, Sellaphorapupula and Surirella splendida) present preferences for oligotrophy (Jewson et al., 1993; Soares et al., 2011), corroborating with the trophic data of this station.
If this were the case, climate perturbations resulting from massive volcanic events associated with LIP formation induced oligotrophy over wide areas of the ocean, with imbalance of the surface-water nitrate/phosphate ratio caused by water column denitrification.
This is predicted to increase loss of fixed N from ocean inventories in OMZs (Codispoti, 2007), potentially enhancing gyre oligotrophy. The intense Eastern Tropical South Pacific (ETSP) OmZ in front of northern Chile and Peru has its maximum extension (3000 km) at [approximately equal to] 10[degrees]S, reaching 120[degrees]W (Fuenzalida et al., 2009).
Indicators of Oligotrophy. Iconographia Diatomologica (Lange-Bertalot, H., ed.).