Table 4. Estimates of total mortality (Z) for Mobula mobular.
Bootstrap median estimates and 95% intervals for Z calculated using disc widths across all surveys (All) or using disc widths from individual years. P(Z > 0.108) indicates the proportion of bootstrap estimates that were greater than the upper 95% confidence interval for rmax (0.108) estimated by Pardo et al. (2016). We interpret that as the probability that total mortality exceeded the species’ maximum intrinsic rate of population growth in a given year.
| Year | Median | 95% Interval | P(Z > 0.108) |
|---|---|---|---|
| All | 0.671 | 0.359–0.909 | 1 |
| 2011 | 0.763 | 0.594–1.095 | 1 |
| 2012 | 0.319 | 0.091–1.792 | 0.963 |
| 2013 | 0.481 | 0–0.693 | 0.894 |
| 2017 | 0.256 | 0.134–0.578 | 0.999 |
| 2018 | 0.561 | 0.492–0.647 | 1 |
| 2019 | 0.795 | 0.519–0.934 | 1 |
| 2020 | 0.548 | 0.447–0.692 | 1 |