One result of the agreement is seen in reductions of total phosphorus (TP) in the water column and a subsequent reduction in hypolimnetic
oxygen depletion rate the early 1970s until the early 1990s (Bertram 1993).
Light-trapping of caddisflies at the Thaya (Lower Austria), a river influenced by pulsating hypolimnetic
Tenders are invited for Furnish, Remove 12 Existing And Install 12 New Hypolimnetic
Thienemann, in contrast, emphasized the degree of hypolimnetic
oxygen depletion in summer and the benthic organisms associated with eutrophication (Chapra and Dobson, 1981).
Although historically found at high altitudes, didymo can now be found in low-elevation waters where cool hypolimnetic
releases below dams seemingly allow didymo to achieve high abundance and bloom frequency (Kirkwood et al.
The release of P from sediments into overlying water during summer hypolimnetic
anoxia is a result of complex interaction between biotic and abiotic processes in the water column and sediment (Nowlin et al.
weir discharge also contributed to hypoxia at some sites.
Increased abundance and depth distribution of pelagic crustacean zooplankton during hypolimnetic
oxygenation in a deep, eutrophic Alberta lake.
Although statistical differences in DO concentrations were not found between the monitored locations, higher hypolimnetic
DO concentrations at the center location could be the result of depth and wind action that control vertical mixing (Scheffer 2004), and can be also affected by temperature and temperature gradients.
Fish mortality have been observed in some temperate fish ponds due to mixing or overturn resulting from temperature changes and it was explained that mixing of the large volumes of oxygen deficient hypolimnetic
with waters of the epilimnion resulted in dissolved oxygen depletion (Boyd, 1979).
Various methods have been developed to achieve hypolimnetic
The lake was refilled and two fountains were added at both ends of the lake to adequately aerate the hypolimnetic