Echinocardium cordatum (Sea potato):  

Predictions & Data for this entry

Model:  abj  

MRE = 0.015
SMSE = 0.021

Zero-variate data
tj 39 39.06 (0.001643)dtime since birth at metamBIOTIC
tp1095 1103 (0.007562)dtime since birth at pubertyBuch1966
am7300 7300 (6.427e-05)dlife spanBIOTIC
Lp5.6 5.523 (0.01382)cmtest length at pubertyDuinJenn1984
Li 9 8.874 (0.01399)cmultimate test lengthWiki
Wwb8.8e-07 8.789e-07 (0.001302)gwet weight at birthKash2007
Wwp61.2 61.2 (7.055e-05)gwet weight at pubertyBuch1966
Wwi254 253.9 (0.0004002)gultimate wet weightWiki
Ri2740 2743 (0.001162)dmax reprod rateBIOTIC
Uni-variate data
DatasetFigure(RE)Independent variableDependent variableReference
tL see Fig. 1 (0.06922)time since settlementtest lengthDuinJenn1984
tL1 see Fig. 1 (0.0478)time since settlementtest lengthDuinJenn1984
tL2 see Fig. 1 (0.02097)time since settlementtest lengthDuinJenn1984
Pseudo-data at Tref
DataGeneralised animalEchinocardium cordatumUnitDescription
v 0.02 0.02059cm/denergy conductance
kap 0.8 0.9975-allocation fraction to soma
kap_R 0.95 0.95-reproduction efficiency
p_M 18 20.85J/^3vol-spec som maint
k_J 0.002 0.0021/dmaturity maint rate coefficient
kap_G 0.8 0.8006-growth efficiency


  • The bivalve Tellimya ferruginosa is often found living inside the sea potatos burrow as a commensal (ref: Wiki)
  • A (nude) test of length 5.56 cm and ventral plate length 3.3 cm, has a volume of 60 ml (ref: Kooy2017)


  • [Wiki]
  • [BIOTIC]
  • [Buch1966] J. B. Buchanan. The biology of Echinocardium cordatum [Echinodermata: Spatangoidea] from different habitats. J. Mar. Biol. Assoc. UK, 46(1):97--114, 1966.
  • [DuinJenn1984] G. C. A. Duineveld and M. I. Jenness. Differences in growth rates of the sea urchin Echinocardium cordatum as estimated by the parameter o of the von Bertalanffy equation applied to skeletal rings. Mar. Ecol. Prog. Ser., 19:65--72, 1984.
  • [Kash2007] S. D. Kashenko. Adaptive responses of embryos and larvae of the heart-shaped sea urchin Echinocardium cordatum to temperature and salinity changes. Russian Journal of Marine Biology, 33(6):381--390, 2007.
  • [Kooy2017] S. A. L. Kooijman, 2017. personal measurement.
  • [Kooy2010] S.A.L.M. Kooijman. Dynamic Energy Budget theory for metabolic organisation. Cambridge Univ. Press, Cambridge, 2010.

Bibtex files with references for this entry

Bas Kooijman, 2017/09/04

accepted: 2017/09/04

refer to this entry as: AmP Echinocardium cordatum version 2017/09/04