Oikopleura dioica (Sea-squirt):  

Predictions & Data for this entry

Model:  std  

MRE = 0.208
SMSE = 0.343

Zero-variate data
ab0.33 0.3309 (0.002678)dage at birth Fena1998
am 8 8.051 (0.006432)dlife span Fena1998
Lb0.0115 0.009447 (0.1785)cmtotal trunc length at birth LombScia2009
L80.1226 0.09626 (0.2149)cmtotal trunc length at 8 d LombScia2009
Wdb0.4 0.03123 (0.9219)mugdry weight at birth LombScia2009
Wd852.6 48.32 (0.08134)mugdry weight at 8 d LombScia2009
NR164.6 163.3 (0.008379)#total number of eggs at deathLombScia2009
Uni-variate data
DatasetFigure(RE)Independent variableDependent variableReference
tL see Fig. 1 (0.2535)time since birthtotal trunc lengthLombScia2009
Pseudo-data at Tref
DataGeneralised animalOikopleura dioicaUnitDescription
v 0.02 0.042cm/denergy conductance
kap 0.8 0.2-allocation fraction to soma
kap_R 0.95 0.95-reproduction efficiency
p_M 18 1300J/d.cm^3vol-spec som maint
k_J 0.002 0.0011/dmaturity maint rate coefficient
kap_G 0.8 0.6852-growth efficiency


  • Produces a new house each 2 h (marine snow) (ref: Wiki)
  • dies at first spawning (ref: Wiki)


  • Reprod buffer builds up on trunk, so the basis growth with L^2, and contribution to total trunc length with N/L^2
  • Allocation to reproduction starts at birth, so E_Hp = E_Hb
  • Parameters tuned by hand


  • [Wiki] http://en.wikipedia.org/wiki/Oikopleura_dioica.
  • [Fena1998] R. Fenaux. The classification of Appendicularia. In Q. Bone, editor, The biology of pelagic tunicates, pages 295--306. Oxford University Press, 1998.
  • [Kooy2010] S.A.L.M. Kooijman. Dynamic Energy Budget theory for metabolic organisation. Cambridge Univ. Press, Cambridge, 2010.
  • [LombScia2009] F. Lombard, A. Sciandra, and G. Gorsky. Appendicularians ecophysiology. ii. Reproducing clearance, growth, respiration and particles production of the appendicularian Oikopleura dioica by modeling its ecophysiology. Journal of Marine Systems, 78:617--629, 2009.

Bibtex files with references for this entry

Maxime Vaugeois, 2011/03/15 (last modified by Bas Kooijman 2011/05/25)

accepted: 2015/12/27

refer to this entry as: AmP Oikopleura dioica version 2015/12/27 bio.vu.nl/thb/deb/deblab/add_my_pet/