Astropecten irregularis (Sand sea star):  

Predictions & Data for this entry

Model:  abj  

MRE = 0.199
SMSE = 0.235

Zero-variate data
tj 30 41.48 (0.3826)dtime since birth at metammarlin
tp912.5 632.4 (0.307)dtime since birth at pubertymarlin
am1825 1825 (7.168e-05)dlife spanmarlin
Lj0.5 0.1564 (0.6873)cmarm length at metamFreeRich2001
Lp2.4 3.1 (0.2918)cmarm length at pubertyFreeRich2001
Li6.6 8.043 (0.2187)cmultimate arm lengthFreeRich2001
Wwb4.2e-06 4.452e-06 (0.05992)gwet weight at birthmarlin
Wwp4.7 4.966 (0.05655)gwet weight at pubertyFreeRich2001
Wwi 97 86.71 (0.1061)gultimate wet weightRobiGree2010
GSI0.42 0.4164 (0.008581)#/dgonado somatic indexFreeRich2001
Uni-variate data
DatasetFigure(RE)Independent variableDependent variableReference
tL see Fig. 1 (0.06635)timemodel arm lengthFreeRich2001
Pseudo-data at Tref
DataGeneralised animalAstropecten irregularisUnitDescription
v 0.02 0.01977cm/denergy conductance
kap 0.8 0.641-allocation fraction to soma
kap_R 0.95 0.95-reproduction efficiency
p_M 18 11.82J/^3vol-spec som maint
k_J 0.002 0.0021/dmaturity maint rate coefficient
kap_G 0.8 0.7983-growth efficiency


  • dioecious, which means that each individual is either male or female (ref: Wiki)
  • weight-length: weight (g): 0.03972 * (diameter in cm)^3.144 (ref: sealifebase)


  • Wiki
  • Kooy2010
  • FreeRich2001
  • RobiGree2010
  • marlin
  • sealifebase

Bibtex files with references for this entry

Bas Kooijman, 2017/09/25

accepted: 2017/09/25

refer to this entry as: AmP Astropecten irregularis version 2017/09/25