Odontaster validus (Antarctic sea star):  

Predictions & Data for this entry

Model:  abj  

MRE = 0.110
SMSE = 0.126

Zero-variate data
ab 33 33.71 (0.02153)dage at birthBosc1989
tj132 131.6 (0.003362)dtime since birth at metamBosc1989
am1.46e+04 1.46e+04 (9.614e-06)dlife spanguessed
Lb0.042 0.03793 (0.09679)cmchord length at birthBosc1989
Lj0.14 0.1694 (0.2099)cmarm length at metamBosc1989
Lp 2 2.139 (0.06954)cmarm length st pubertyPear1969
Li 7 7.07 (0.01002)cmultimate arm lengthPearMcCl1989
Wd01.1 1.172 (0.06522)mugegg dry weightHoegWelb1991
Wwp2.95 2.858 (0.03105)gwet weight at pubertyPear1969
Wwi100 107.6 (0.07627)gultimate wet weightPearMcCl1989
GSI0.1 0.08555 (0.1445)-gonado somatic indexPearMcCl1989
Uni-variate data
DatasetFigure(RE)Independent variableDependent variableReference
LW see Fig. 1 (0.1272)arm lengthwet weightPearMcCl1989
LW_f see Fig. 1 (0.1404)arm lengthwet weightMcClPear1988
WwdWw see Fig. 2 (0.3769)wet weightpercent wet weight increaseMcClPear1988
TJO see Fig. 3 (0.09182)TemperatureO_2 consumption PeckWebb2008
LWR see Fig. 4 (0.2342)diametermax gonad weightPearMcCl1989
tLj see Fig. 5 (0.2012)time since birthlength of bippinaria larvaeBosc1989
tWde see Fig. 6 (0.08213)agedry weightHoegWelb1991
Pseudo-data at Tref
DataGeneralised animalOdontaster validusUnitDescription
v 0.02 0.008918cm/denergy conductance
kap 0.8 0.815-allocation fraction to soma
kap_R 0.95 0.95-reproduction efficiency
p_M 18 13.39J/d.cm^3vol-spec som maint
k_J 0.002 0.0021/dmaturity maint rate coefficient
kap_G 0.8 0.8045-growth efficiency


  • Oogenesis takes 18-24 months to complete (ref: Pear1965)
  • Spawning occurs annually between May - August (winter) (ref: Pear1965)
  • After spawning, remaining GSI is aprox. 20
  • GSI cycle is not significantly different between males and females (ref: Pear1965)
  • This entry is discussed in AgueColl2016 (ref: AgueColl2016)


  • maximum GSI as reproduction buffer accumulated during 1.2 years, due to the fact 1-3
  • T-JO: animals were starved for 4 weeks prior to the start of the temperature ramp, and were not fed during the experiment (3 more weeks). I think that even for these slow animals we can consider that assimilation is not happening.


  • [Wiki] https://en.wikipedia.org/wiki/Odontaster_validus.
  • [AgueColl2016] A. Aguera, M. Collard, Q. Jossart, C. Moreau, and B. Danis. Parameter estimations of Dynamic Energy Budget (DEB) model over the life history of a key Antarctic species: The Antarctic sea star Odontaster validus Koehler, 1906. PlosOne, 10:e0140078, 2016.
  • [Bosc1989] I Bosch. Reproduction and development of shallow-water asteroids and an echinoid in McMurdo Sound, Antarctica. PhD thesis, University of California Santa Cruz, 1989.
  • [HoegWelb1991] O. Hoegh-Guldberg, J. R. Welborn, and D. T. Manaham. Metabolic requeriments of Antarctic and temperature asteroid larvae. Antarctic Journal of United States, 26:163--165, 1991.
  • [Kooy2010] S.A.L.M. Kooijman. Dynamic Energy Budget theory for metabolic organisation. Cambridge Univ. Press, Cambridge, 2010.
  • [McClPear1988] J. B. McClintock, J. S. Pearse, and I. Bosch. Population structure and energetics of the shallow-water Antarctic sea star Odontaster validus in contrasting habitats. Marine Biology, 99:235--246, 1988.
  • [Pear1965] J. S. Pearse. Reproductive periodicities in several contrasting populations of Odontaster validus Koehler, a common Antarctic asteroid. Biology of Antarctic Seas II. Antarctic Research Series, 5:39--85, 1965.
  • [Pear1969] J. S. Pearse. Antarctic sea star. Australian Natural History, 16:234--238, 1969.
  • [PearMcCl1989] J. S. Pearse, J. B. McClintock, and I. Bosch. Rearing experiment of odontaster at McMurdo Station, Antarctica. Unpublished data, 1989.
  • [PeckWebb2008] L. S. Peck, K. E. Webb, A. Miller, and M. S. Clark. Temperature limits to activity, feeding and metabolism in the Antarctic starfish Odontaster validus. Marine Ecology Progress Series, 358:181--189, 2008.

Bibtex files with references for this entry

Antonio Aguera, 2016/04/19 (last modified by Bas Kooijman 2016/04/27)

accepted: 2016/04/27

refer to this entry as: AmP Odontaster validus version 2016/04/27 bio.vu.nl/thb/deb/deblab/add_my_pet/