Table 2. Estimated common bottlenose dolphin density (dolphins km−2) and abundance (dolphins) during primary photo-identification capture-recapture periods, and averaged over the study period in Mississippi Sound (MSS).
| Island Density | Inshore Density | MSS Density | MSS Abundance | ||
|---|---|---|---|---|---|
| Period | Date | Est (low, high) | Est (low, high) | Est (low, high) | Est (low, high) |
| 1 | Jul 2010 | 4.78 (2.91, 6.07) | 1.05 (0.99, 1.14) | 1.42 (1.27, 1.54) | 3474 (3088, 3752) |
| 2 | Oct 2010 | 3.32 (2.02, 4.22) | 1.09 (1.02, 1.17) | 1.31 (1.21, 1.39) | 3201 (2942, 3391) |
| 3 | Mar 2011 | 5.10 (3.10, 6.48) | 0.97 (0.91, 1.05) | 1.38 (1.21, 1.51) | 3372 (2951, 3672) |
| 4 | May 2011 | 3.32 (2.02, 4.22) | 1.06 (0.99, 1.14) | 1.28 (1.18, 1.36) | 3130 (2871, 3320) |
| 5 | Jul 2011 | 4.42 (2.69, 5.62) | 1.61 (1.51, 1.73) | 1.89 (1.75, 2.00) | 4610 (4271, 4865) |
| 6 | Oct 2011 | 4.52 (2.75, 5.75) | 1.24 (1.17, 1.34) | 1.57 (1.42, 1.68) | 3828 (3467, 4086) |
| 7 | Jan 2012 | 4.25 (2.59, 5.40) | 0.92 (0.86, 0.99) | 1.25 (1.11, 1.35) | 3046 (2702, 3293) |
| 8 | May 2012 | 5.74 (3.49, 7.29) | 0.77 (0.72, 0.83) | 1.27 (1.07, 1.41) | 3089 (2600, 3435) |
| Mean Density | 4.43 | 1.09 | 1.42 | ||
| (2.70, 5.63) | (1.02, 1.17) | (1.28, 1.53) | |||
| SD (Density) | 1.101 | 0.042 | 0.081 | ||
| Mean Abundance | 1074 | 2395 | 3469 | ||
| (653, 1365) | (2244, 2578) | (3113, 3725) | |||
| SD (Abundance) | 266.9 | 92.2 | 197.7 | ||
-Abundances were calculated by expanding densities to size of the strata in all of MSS (2438 km2: Island, 242 km2 and Inshore, 2196 km2)
-“low, high” = 95% posterior confidence interval
-SD = standard deviation