Explain biomagnification of DDT in an aquatic food chain. How does it

1.	Explain biomagnification of DDT in an aquatic food chain. How does it affect the bird population?
Answer» If DDT leaches from the agricultural field, it gets into the water body (the concentration is 0.0003 ppm) and enters the food chain: zooplanktons (0.04 ppm) → small fish (0.05 ppm) → large fish (2 ppm) → any fish eating bird (5 ppm). Concentration of DDT increases along the food chain, reaching a high level in the top carnivore bird. DDT concentration disturbs Ca++ metabolism, egg shells become thin, premature breaking resulting in decline in bird population.

Explain biomagnification of DDT in an aquatic food chain. How does it affect the bird population?

Answer»

If DDT leaches from the agricultural field, it gets into the water body (the concentration is 0.0003 ppm) and enters the food chain: zooplanktons (0.04 ppm) → small fish (0.05 ppm) → large fish (2 ppm) → any fish eating bird (5 ppm).

Concentration of DDT increases along the food chain, reaching a high level in the top carnivore bird.

DDT concentration disturbs Ca++ metabolism, egg shells become thin, premature breaking resulting in decline in bird population.

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Explain biomagnification of DDT in an aquatic food chain. How does it affect the bird population?

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