400 Level Department of Science Laboratory Technology exam questions and detailed answers. Download the answers in document format. Correct, detailed, and straightforward answers.
Questions:
a.i What is the method used to estimate the size of population of fishes on a stretch of stream?
ii. Using a capture-recapture method to estimate the size of population of fishes on a stretch of stream, 600 individuals were captured, marked, and released. A second sample of 400 individuals was captured two days later, out of which 150 had marks. Estimate the population.
b. State the assumptions of capture-recapture methods of sampling.
c. Possible errors of capture-recapture method.
d. Precautions to be taken in capture-recapture method.
