| Title: | Morphological Allometry of Rorquals |
|---|---|
| Description: | Predicts morphological parameters of rorquals (e.g. body mass, flipper length, maximum engulfment capacity) from body length using allometric equations from Kahane-Rapport and Goldbogen (2018) <doi:10.1002/jmor.20846>. |
| Authors: | Max Czapanskiy [aut, cre] (ORCID-ID: 0000-0002-6302-905X), Shirel Kahane-Rapport [aut] (ORCID: <https://orcid.org/0000-0002-5208-1100>), Jeremy Goldbogen [aut] (ORCID: <https://orcid.org/0000-0002-4170-7294>) |
| Maintainer: | Max Czapanskiy <[email protected]> |
| License: | MIT + file LICENSE |
| Version: | 0.1.2 |
| Built: | 2026-05-26 08:06:55 UTC |
| Source: | https://github.com/flukeandfeather/rorqual.morpho |
A dataset including the intercepts and slopes of the ordinary least squares allometric regression (in log10 space) of various morphometric parameters against body length. Use the formula 10^intercept * length^slope to predict morphology.
allometryallometry
A data frame with 5 columns:
two letter codes: bw, bp, mn, ba, be, and bs
scientific binomials
morphological parameter e.g. flipper length, body mass
slope of the allometric relationship
intercept of the allometric relationship
Rorqual bizygomatic skull width
rorq_bizygomatic(species, length_m)rorq_bizygomatic(species, length_m)
species |
a vector of species codes |
length_m |
a vector of lengths in meters |
a vector of bizygomatic skull widths in m
# A 22m blue whale rorq_bizygomatic("bw", 22) # A 7m minke rorq_bizygomatic("ba", 7)# A 22m blue whale rorq_bizygomatic("bw", 22) # A 7m minke rorq_bizygomatic("ba", 7)
Rorqual engulfment capacity
rorq_engulf(species, length_m)rorq_engulf(species, length_m)
species |
a vector of species codes |
length_m |
a vector of lengths in meters |
a vector of engulfment capacities in kg of water
# A 22m blue whale rorq_engulf("bw", 22) # A 7m minke rorq_engulf("ba", 7)# A 22m blue whale rorq_engulf("bw", 22) # A 7m minke rorq_engulf("ba", 7)
Rorqual flipper length
rorq_flipper(species, length_m)rorq_flipper(species, length_m)
species |
a vector of species codes |
length_m |
a vector of lengths in meters |
a vector of flipper lengths in m
# A 22m blue whale rorq_flipper("bw", 22) # A 7m minke rorq_flipper("ba", 7)# A 22m blue whale rorq_flipper("bw", 22) # A 7m minke rorq_flipper("ba", 7)
Rorqual fluke length
rorq_fluke(species, length_m)rorq_fluke(species, length_m)
species |
a vector of species codes |
length_m |
a vector of lengths in meters |
a vector of fluke lengths in m
# A 22m blue whale rorq_fluke("bw", 22) # A 7m minke rorq_fluke("ba", 7)# A 22m blue whale rorq_fluke("bw", 22) # A 7m minke rorq_fluke("ba", 7)
Rorqual projected mandible length
rorq_mandible(species, length_m)rorq_mandible(species, length_m)
species |
a vector of species codes |
length_m |
a vector of lengths in meters |
a vector of laterally projected mandible lengths in m
# A 22m blue whale rorq_mandible("bw", 22) # A 7m minke rorq_mandible("ba", 7)# A 22m blue whale rorq_mandible("bw", 22) # A 7m minke rorq_mandible("ba", 7)
Rorqual mass
rorq_mass(species, length_m)rorq_mass(species, length_m)
species |
a vector of species codes |
length_m |
a vector of lengths in meters |
a vector of masses in kg
# A 22m blue whale rorq_mass("bw", 22) # A 7m minke rorq_mass("ba", 7)# A 22m blue whale rorq_mass("bw", 22) # A 7m minke rorq_mass("ba", 7)
Rorqual engulfed water mass to body mass ratio
rorq_massratio(species, length_m)rorq_massratio(species, length_m)
species |
a vector of species codes |
length_m |
a vector of lengths in meters |
a vector of ratios (engulfed water mass to body mass)
# A 22m blue whale rorq_massratio("bw", 22) # A 7m minke rorq_massratio("ba", 7)# A 22m blue whale rorq_massratio("bw", 22) # A 7m minke rorq_massratio("ba", 7)
Rorqual ventral groove blubber length
rorq_vgb(species, length_m)rorq_vgb(species, length_m)
species |
a vector of species codes |
length_m |
a vector of lengths in meters |
a vector of VGB lengths in m
# A 22m blue whale rorq_vgb("bw", 22) # A 7m minke rorq_vgb("ba", 7)# A 22m blue whale rorq_vgb("bw", 22) # A 7m minke rorq_vgb("ba", 7)