This mesotrophic area of the lake has a narrow hypolimnion that is often deficient of oxygen.    From Wordnik.com.  [Lake Erie, Ontario] Reference

Nitrite (NO2) rarely accumulates except in the metalimnion and hypolimnion of eutrophic lakes.    From Wordnik.com.  [Chemical properties of lakes] Reference

With no circulation to restore it and no aquatic plants to produce it, oxygen levels in the hypolimnion layer decline.    From Wordnik.com.  [Clearing Up the Fall Turnover] Reference

When the hypolimnion of a eutrophic lake becomes anaerobic, bacterial nitrification of ammonia ceases and the NH4+ concentrations increase.    From Wordnik.com.  [Chemical properties of lakes] Reference

In eutrophic (productive) lakes, the loading of organic matter to the hypolimnion and sediments increases the consumption of dissolved oxygen.    From Wordnik.com.  [Chemical properties of lakes] Reference

The metalimnetic oxygen maximum distribution occurs when the oxygen content in the metalimnion is supersaturated in relation to levels in the epilimnion and hypolimnion.    From Wordnik.com.  [Chemical properties of lakes] Reference

The oxygen content of the hypolimnion is higher than that of the epilimnion because the saturated colder water from spring turnover experiences limited oxygen consumption.    From Wordnik.com.  [Chemical properties of lakes] Reference

Lake populations needing to avoid temperature extremes are very likely to be confined to the hypolimnion during the warmest months provided anoxic conditions do not develop.    From Wordnik.com.  [Climate change effects on arctic freshwater fish populations] Reference

In oligotrophic lakes, high oxygen concentrations permit metabolism of ammonia to nitrate, resulting in low levels of nitrite and ammonia and high levels of nitrate in the hypolimnion.    From Wordnik.com.  [Chemical properties of lakes] Reference

(HVOD), is less dependent on hypolimnion thickness.    From Wordnik.com.  [Recently Uploaded Slideshows] Reference

The bottom 5-m layer did not yield vertical mixing of the hypolimnion.    From Wordnik.com.  [Recently Uploaded Slideshows] Reference

The average DO content for the bottom layer was very stable hypolimnion.    From Wordnik.com.  [Recently Uploaded Slideshows] Reference

Oxygen uptake in the bottom 20 m of the T e m p er a tu r e ° C hypolimnion occurred.    From Wordnik.com.  [Recently Uploaded Slideshows] Reference

HVOD rates can also be modi fi ed by oxygen Boulder Canyon transported downward into the hypolimnion.    From Wordnik.com.  [Recently Uploaded Slideshows] Reference

Estimate of downward transport of dissolved oxygen (DO) into the hypolimnion of Boulder Basin 1995-2005 by eddy diffusion.    From Wordnik.com.  [Recently Uploaded Slideshows] Reference

Generally, the rate at which oxygen is depleted is correlated to the amount of organic debris in the hypolimnion and sediments.    From Wordnik.com.  [Recently Uploaded Slideshows] Reference

In contrast, the volumetric oxygen de fi cit, the rate of disappearance of oxygen from unit volume of the hypolimnion, or hypolimnetic volumetric oxygen demand.    From Wordnik.com.  [Recently Uploaded Slideshows] Reference

This within the thermocline, including one at peak conductivity; method was chosen because the HVOD rate is presumed to and up to 4 samples within the hypolimnion.    From Wordnik.com.  [Recently Uploaded Slideshows] Reference

At lower lake levels, out fl ow temperatures are of colder water into the hypolimnion as an inter fl ow from higher because water is removed from a shallower layer.    From Wordnik.com.  [Recently Uploaded Slideshows] Reference

Repeatability of DO measure - does not completely destratify each year, leaving a remnant ments is within 0. 2\% and instrument accuracy = 0.1 mg / L for portion of the hypolimnion >.    From Wordnik.com.  [Recently Uploaded Slideshows] Reference

Despite cooling temperatures in fall 2005, neither analysis changes as the selected hypolimnion depth deepens the water temperature nor the DO pro fi les indicated strong as the season progresses.    From Wordnik.com.  [Recently Uploaded Slideshows] Reference

As plants require light for photosynthesis, which creates oxygen, this leaves the epilimnion with plentiful oxygen but the hypolimnion with very little or no oxygen and no way to mix the two layers.    From Wordnik.com.  [edie.net - Latest News] Reference

The annual oxygen deple - of the bottom 20 m of the hypolimnion gradually but steadily tion rate was calculated by plotting the average hypolimnetic warmed from 11. 9°C to 12. 2°C, or 0. 3°C / 220 days.    From Wordnik.com.  [Recently Uploaded Slideshows] Reference

(Pilson 1998) and Factors other than hypolimnetic temperature prevent or the average DO concentration gradient at the hypolimnion enhance complete mixing after the second year of a pair of boundary of 0.20 g / m4.    From Wordnik.com.  [Recently Uploaded Slideshows] Reference

The hypolimnion data were collected using pro fi ling sondes manufactured by is the thickest and most stable layer, with an average water Hydrolab Corporation (1995-early 2007) and Eureka Corpo - temperature of 12°C.    From Wordnik.com.  [Recently Uploaded Slideshows] Reference

(hypolimnion) and the transition layer (thermocline or metalimnion).    From Wordnik.com.  [edie.net - Latest News] Reference

fi rst method For example, on 20 October 2005 the epilimnion was 25 m was rejected because the hypolimnion water mass under (Fig. 3).    From Wordnik.com.  [Recently Uploaded Slideshows] Reference

Rate of HVOD change in the bottom 20 m of the comm.). hypolimnion of Boulder Basin, 1991-2006.    From Wordnik.com.  [Recently Uploaded Slideshows] Reference

This produces a warming in the adjusted) oxygen uptake rates are signi fi cantly higher than 20-m thick hypolimnion of approximately 0. 0017°C from 8 the observed HVOD rates.    From Wordnik.com.  [Recently Uploaded Slideshows] Reference

20 m of the hypolimnion, 1 May 2005 to 30 April 2006. not obtained.    From Wordnik.com.  [Recently Uploaded Slideshows] Reference

19: 208-221. the hypolimnion decreases.    From Wordnik.com.  [Recently Uploaded Slideshows] Reference