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A meromictic lake is a lake which has layers of water that do not intermix. In ordinary, holomictic lakes, at least once each year, there is a physical...

Holomictic lakes are lakes that have a uniform temperature and density from surface to bottom at a specific time during the year, which allows the lake...

Monomictic lakes are holomictic lakes that mix from top to bottom during one mixing period each year. Monomictic lakes may be subdivided into cold and...

the lake waters to completely mix. Based upon thermal stratification and frequency of turnover, holomictic lakes are divided into amictic lakes, cold...

strata of the lake's water to circulate vertically. All dimictic lakes are also considered holomictic, a category which includes all lakes which mix one...

of holomictic, whereas lakes that do not have interlayer mixing are permanently stratified and thus are termed meromictic. Generally, in a holomictic lake...

dissolved. It is estimated only one meromictic lake exists for every 1,000 holomictic lakes. Finally, a lake must be very deep in order to have sufficiently...

A lake ecosystem or lacustrine ecosystem includes biotic (living) plants, animals and micro-organisms, as well as abiotic (non-living) physical and chemical...

Polymictic lakes are holomictic lakes that are too shallow to develop thermal stratification; thus, their waters can mix from top to bottom throughout...

Lake stratification is the tendency of lakes to form separate and distinct thermal layers during warm weather. Typically stratified lakes show three distinct...

within the lake. Lake Vanda in Eastern Antarctica Lake Bonney in Victoria Land Lake Vostok in Antarctica Lakes portal Dimictic lake Holomictic lake Meromictic...

epilimnion or surface layer is the top-most layer in a thermally stratified lake. The epilimnion is the layer that is most affected by sunlight, its thermal...

Oeschinen Lake (German: Oeschinensee) is a lake in the Bernese Oberland, Switzerland, 4 kilometres (2.5 mi) east of Kandersteg in the Oeschinen valley...

is a species of tubificid segmented worm which inhabits the sediments of lakes and rivers on several continents. Tubifex likely includes several species...

Parashar Lake (also spelled Prashar Lake) is a freshwater lake located at an elevation of 2,730 metres (8,960 ft) in the Mandi district of Himachal Pradesh...

The hypolimnion or under lake is the dense, bottom layer of water in a thermally-stratified lake. The word "hypolimnion" is derived from Ancient Greek:...

of holomictic lakes during the seasonal transition to stratified conditions, due to the shorter amount of time required for shallow areas of the lake to...

The profundal zone is the deep zone of a lake, located below the range of effective light penetration. This is typically below the thermocline, the vertical...

purple sulfur bacteria is also supported by the layering in holomictic lakes. These lakes are thermally stratified; in the spring and summer time, water...

open and well-lit area of a freestanding body of fresh water, such as a lake or pond. Not included in this area is the littoral zone, which is the shallow...