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Alenkasestr [34]
3 years ago
6

At each stage of the trophic levels, how much energy is lost?

Biology
1 answer:
Lana71 [14]3 years ago
3 0

Answer:

At each stage of the trophic levels, only 10% energy is transferred from one level to another.

Explanation:

In an ecosystem transfer of energy from one stage to another is very inefficient. From first stage to next stage only 10% energy is transferred to next trophic level. Rest 90% lost in environment.

This is known as  LINDEMAN's TEN PERCENT LAW. Given by Raymond lindeman.Only 10% energy from one trophic level to next trophic level is transferred. Rest is used in respiration, breakdown etc.

First stage of trophic level has the highest energy and the last trophic level has the lowest amount of energy.

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Eutrophication is the process wherein nutrients specifically phosphorus and nitrogen are present in excess in a water body such as a lake. The increased concentration of nutrients promoter the growth of cyanobacteria and algae such as phytoplankton.

The increased population of phytoplankton in surface water reduces the oxygen availability and clarity of water for the organisms present in deeper layers.  Also, reduced clarity of water limits the amount of solar radiations penetrating the surface water to reach the deeper layers.

Increased nutrient levels of the lake would rather inhibit the growth of submerged plants due to reduced availability of sunlight as caused by presence of phytoplankton in surface water.  

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