Pond Succession. Each group of plants has successively more mass, which helps to fill in the pond quicker as they die. The portions of immersed plants above water also help to trap dirt, causing the pond to fill even faster. New Pond or Old Pond?. Stratification of a lake.
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Each group of plants has successively more mass, which helps to fill in the pond quicker as they die. The portions of immersed plants above water also help to trap dirt, causing the pond to fill even faster
New Pond or Old Pond?
Stratification of a lake
These layers are based on temperatures of the water.
With stratification in place in a "deep" lake, we can define three major layers within the lake.
Epilimnion, an upper layer of circulating warm water, usually no more than 6 m (20 ft) deep, where dissolved oxygen concentrations are moderate to high.
Thermocline, a layer of rapid temperature and oxygen decrease with depth, often quite thin, separating the upper and lower layers.
Hypolimnion, a cold, deep-water, non-circulating layer in which oxygen is low or absent.
Temperature stratification is important in turnover of nutrients and oxygen levels in the lake, which in turn effects the organisms that can live in that layer.
Neritic – shallow part of the sea
Pelagic – open sea
Benthic – bottom part of a body of water
Temperature layers in the ocean by latitude and depth.