hypolimnion

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hypolimnion

[¦hī·pō′lim·nē‚än]
(hydrology)
The lower level of water in a stratified lake, characterized by a uniform temperature that is generally cooler than that of other strata in the lake.
References in periodicals archive ?
necessary to remove 12 existing and furnish and install 12 new hypolimnetic aerator units or approved
shall perform hypolimnetic aeration of waters deeper than 16 ft.
using hypolimnetic water withdrawal or chemical precipitation) could also be considered to reduce and control the release of P from anoxic sediment.
In conclusion, this study characterized Prairie Creek reservoir as an eutrophic water body in which nutrients release from the sediment was intensified by hypolimnetic anoxia during summer.
Hypolimnetic water can be withdrawn, exposed to pure oxygen under high pressure and then delivered back to the hypolimnion.
Air injection: A third method involves pumping hypolimnetic water downward with sufficient velocity that injected oxygen is forced downward as well.
ee:88/seireveeb/) indicated that deep layers were anoxic and hypolimnetic nutrient concentrations were extremely high (e.
For example, in addition to diatoms as good indicators of the lake epilimnetic processes, analyses of profundal chironomids as a proxy for hypolimnetic water quality should be included.
Location 1 had hypolimnetic DO <1 mg/L only in June and August, and location 2 reached such low levels only once in July (Table 4).
Hypolimnetic release from reservoirs can have severe effects on downstream biota.
Last, hypolimnetic releases from Rockport Dam might explain why we observed bluehead suckers concentrated in the lower 3 km of Reach 1.
Hypolimnetic oxygen concentration, which is the main limiting factor for the profundal community, is not always related to the trophic state but can also depend on lake morphometry (Bazzanti & Seminara, 1985).