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. 2024 Feb 29;12:e16978. doi: 10.7717/peerj.16978

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.