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The total number of organisms therefore is

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Use the following information on capture/recapture method to calculate the total number of organisms in a habitat:
First capture = 200
Second capture = 120
Number of organisms with mark in second capture = 40

The total number of organisms therefore is

A.

200

B.

360

C.

600

D.

800

Correct answer is C

The formula for estimated population is

Noofmarkedin1stcaptureNoofspecies=Noofmarkedin2ndcapturenoofspeciesin2ndcapture

= 200×12040=600