eutrophic

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eutrophic Originally applied to nutrient-rich waters with high primary productivity but now also applied to soils. Typically, eutrophic lakes are shallow, with a dense plankton population and well-developed littoral vegetation. The high organic content may mean that in summer, when there is stagnation resulting from thermal stratification, oxygen supplies in the hypolimnion become limiting for some fish species, e.g. trout. Compare OLIGOTROPHIC.

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