An island has 12 fur seal rookeries. To estimate the fit seal pup population in rookery A, 6124 pups were tagged in early august. In late august, a sample of 1200 pups were observed, 199 of which were previously tagged. Use a proportion to estimate the total number of pups in rookery A.

First, calculate the proportion of tagged pups in the sample:

199 tagged pups / 1200 sampled pups = 0.1658

Next, use this proportion to estimate the total number of pups in rookery A:

0.1658 x 6124 tagged pups = 1015.22 pups

Therefore, the estimated total number of pups in rookery A is approximately 1015.