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oligotrophy
(redirected from oligotrophic)

   Also found in: Dictionary/thesaurus, Encyclopedia, Wikipedia 0.01 sec.
oligotrophia, oligotrophy
a state of poor (insufficient) nutrition.


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STUDY AREA Nohipalu Valgjarv is a small (7 ha) oval-shaped softwater oligotrophic lake, located in a glaciokarstic hollow in the Meenikunno Landscape Reserve in southern Estonia (57[degrees]56'30"N; 27[degrees]20'50"E).
Based on monitoring between 2000 and 2004, 19% of the sampled lakes and reservoirs in Indiana were classified as oligotrophic, 46% mesotrophic, 25% eutrophic, and 9% as hypereutrophic (IDEM 2006).
The pH and concentrations of potassium, lithium, calcium, and magnesium are one to two orders of magnitude higher in the lakes close to the waste basin than in the natural lakes further downstream, whereas total phosphorus has been at the same low level as in local oligotrophic lakes that are in a natural state (Table 1).
 
 
 
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