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Definition of Biomagnification

If the concen...

Question

If the concentration of DDT were 0.2 ppm in water of a lake. What would be its concentration in fish in the food chain plankton, fish, fish eating birds? How to calculate it?

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Solution

This is an example of Biological Magnification. Hence, there will be an increase in the concentration of toxic substances, such as DDT and chemicals, per successive trophic levels of the food chain.
Normally, there is an increase of 10% per trophic level, and it can be explained as per the diagram bellow-

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Definition of Biomagnification

Standard XII Biology

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