Table 1. Body mass estimates of blue whales (Balaenoptera musculus) from regression-based and volumetric approaches.
Fork | Regression-based mass estimates (ton) | Volumetric mass | |||||||
---|---|---|---|---|---|---|---|---|---|
length | Assuming 7% blood loss | Assuming 14% blood loss | Estimates (ton) | ||||||
(m) | Mean | 95% CI | 95% PI | Mean | 95% CI | 95% PI | Mean | Min | Max |
15 | 19.0 | [13.6–26.6] | 12.7–28.4 | 20.5 | [14.7–28.7] | 13.7–30.7 | 25.6 | 25.0 | 26.2 |
17 | 28.6 | [22.4–36.7] | 20.5–39.9 | 31.0 | [24.2–39.7] | 22.2–43.1 | 37.3 | 36.4 | 38.2 |
25 | 101 | [97–106] | 81–127 | 110 | [104–115] | 87.4–137 | 119 | 116 | 121 |
30 | 184 | [157–217] | 140–242 | 199 | [170–234] | 151–262 | 205 | 200 | 210 |
33 | 252 | [201–316] | 183–346 | 272 | [217–342] | 198–374 | 273 | 266 | 279 |
Note:
CI and PI refer to confidence and prediction intervals, respectively.