Predictions & Data for this entry

Model: abj climate: MA migrate:
COMPLETE = 2.3 ecozone: MPE food: biCik, biCvf
MRE = 0.050 habitat: 0iMp, 0iMr gender: D
SMSE = 0.050 embryo: Ms reprod: O

Zero-variate data
ab335.5 333.6 (0.005518)dage at birthSaunLand2010
tp2673 2542 (0.04913)dtime since birth at pubertyWestBeck2004
am4380 4379 (0.0002659)dlife spanWestBeck2004
Lb2.6 3.104 (0.194)cmshell diameter at birthWestBeck2004
Lp11.3 10.84 (0.04099)cmshell diameter at pubertyWestBeck2004
Li16.5 17.6 (0.06686)cmultimate shell diameterWestBeck2004
Wwb 4 3.781 (0.0548)gwet weight at birthWard1987
Wwi490 517.6 (0.05628)gultimate wet weightKooy2017
dLp0.0055 0.00533 (0.03099)cm/dchange in shell diameter at pubertyWestBeck2004
Ri0.03014 0.03017 (0.001039)#/dmax reproduction rateWard1987
Pseudo-data at Tref
DataGeneralised animalNautilus pompiliusUnitDescription
v 0.02 0.02052cm/denergy conductance
kap 0.8 0.9018-allocation fraction to soma
kap_R 0.95 0.95-reproduction efficiency
p_M 18 22.17J/^3vol-spec som maint
k_J 0.002 0.0021/dmaturity maint rate coefficient
kap_G 0.8 0.8009-growth efficiency


  • No sexual dimorphism (ref: SaunLand2010)
  • The shell resembles a logarithmic spiral, with ratio ranging from about 1.24 to 1.43, (average about 1.33); the ratio of the golden spiral is 1.618 (ref: Wiki)


  • [Wiki]
  • [Kooy2017] S. A. L. M. Kooijman, 2017. Measured volume of water in a thin plastic bag in the last champber of a shell of 16 cm diameter, where the water level in the bag peeps out of the shell like the soft tissue at life.
  • [Kooy2010] S.A.L.M. Kooijman. Dynamic Energy Budget theory for metabolic organisation. Cambridge Univ. Press, Cambridge, 2010.
  • [SaunLand2010] W. B. Saunders and N. H. (eds) Landman. Nautilus; the biology and paleobiology of a living fossil, volume 6 of Topics in Geobiology. Springer, 2010.
  • [Ward1987] P. D. Ward. The natural history of Nautilus. Allen & Unwin, Winchester, USA, 1987.
  • [WestBeck2004] B. Westermann, I. Beck-Schildwächter, K. Beuerlein, E. F. Keleta, and R. Schipp. Shell growth and chamber formation of aquarium-reared Nautilus pompilius (Mollusca, Cephalopoda) by X-ray analysis. J. Exp. Zool., 301A:930--937, 2004.

Bibtex file with references for this entry

Bas Kooijman, 2017/02/07

accepted: 2017/02/07

refer to this entry as: AmP Nautilus pompilius version 2017/02/07