Table 3.
Probability of Australian humpback dolphin occurrence in six sanctuary zones of northern Ningaloo Marine Park predicted by ensemble models for the overall survey period (May 2013-October 2015).
| Dolphin occurrence probability | |||
|---|---|---|---|
| Sanctuary zone | Area (km2) | No. of grid cells | Overall (mean ± SD) (median) (range) |
| Mangrove Bay | 11.4 | 48 |
0.13 ± 0.13 0.06 0.04—0.58 |
| Tantabiddi | 0.5 | 2 |
0.32 ± 0.04 0.32 0.28—0.35 |
| Jurabi | 7.5 | 36 |
0.30 ± 0.23 0.25 0.03—0.73 |
| Lighthouse Bay | 7.6 | 30 |
0.34 ± 0.27 0.23 0.03—0.76 |
| Point Murat | 4.7 | 9 |
0.37 ± 0.21 0.33 0.07—0.70 |
| Bundegi Reef | 7 | 32 |
0.14 ± 0.11 0.14 0.04—0.43 |
| Combined | 38.7 | 157 |
0.23 ± 0.21 0.15 0.03—0.76 |
| Outside (RZ & GUZ) | 111.8 | 445 |
0.22 ± 0.20 0.13 0.04—0.74 |
Values shown indicate mean (± SD), median, and range of occurrence probability for the total number of 500 × 500 m grid cells occupying each sanctuary zone, sanctuary zone grids combined, or grids outside sanctuary zones (i.e. recreation and general use zones; RZ and GUZ, respectively). See Fig. 4 for visual representation of the probability of dolphin occurrence in (and outside) sanctuary zones.