Weighted average estimates of seasonal abundance () over the best five closed robust design candidate models, total abundance estimates () corrected for the proportion of highly-marked individuals (mark-ID ratio = 0.855) and the number of surveys of the subsampled dataset.

Coefficient of variation: CV; 95% log-normal confidence intervals: 95% CI. There were considerable uncertainties in the estimates in summer 2010 and winter 2011, and these should be viewed with caution.