Answer :
Answer:
a. 6.26%
b. 3.65%
Explanation:
A food chain is a series of event showing how organism feed on one another, it also shows the transfer of energy in an ecosystem.
From the question; we can have a food chain showing the transfer of energy right from the producer to the tertiary consumer
(Producer) Primary Sedcondary Tertiary
consumer (1°) consumer (2°) consumer (3°)
Phytoplankton ⇒ Copepods ⇒ small fish ⇒ Marine birds
120,000 kJ/m2 7,514 kJ/m2 383 kJ/m2 14 kJ/m2
W X Y Z
Efficiency of energy transfer is given as: [tex]\frac{EnergyAvaliableAfterTheTransfer}{EnergyAvailableBeforeTheTransfer}*100%[/tex]
The first question (a) says, Calculate the efficiency of energy transfer to the copepods.
i.e efficiency of energy transfer from phytoplankton to copepods =[tex]\frac{X}{W}*100%[/tex]
=[tex]\frac{7514}{120000}*100[/tex]
= 6.25%
b) Calculate the efficiency of energy transfer from the secondary consumer to marine birds.
i.e efficiency of energy transfer from small fish to marine birds = [tex]\frac{Z}{Y} *100[/tex]
=[tex]\frac{14}{383} *100[/tex]
=3.65%