Ecosystem Question 136
Question: Blue whale, which inhabits Antarctica, has a requirement of more than a million calories per day. Which one of the following planktonic organisms forms the bulk of food to fulfill its caloric requirement?
Options:
A) Dinoflagellates
B) Diatoms
C) Green algae
D) Krill
Show Answer
Answer:
Correct Answer: D
Solution:
[d] Krill (Euphausia superba) is the only answer to fulfil the caloric requirement of whale, because it is rich in protein and fat.
1 Ib of krill yields at least 460 calories.
Its production in the total area of Antarctica is approximately 1350 million tons and feeding requirement for the total population of whale (half a million consuming 3 tones of krill per day for six months) is around 270 million tons of krill.
BETA
