Paracentrotus lividus (Purple sea urchin):  

Predictions & Data for this entry

Model:  abj  

MRE = 0.224
SMSE = 0.324

Zero-variate data
tj 18 18.5 (0.02778)dtime since birth at settlementCellFena1990
am3285 3279 (0.001675)dlife spanecol_mar
Lj0.048 0.02852 (0.4059)cmtest diameter at settlementCellFena1990
Lp2.25 2.235 (0.006556)cmtest diameter at pubertyGros2001
Li6.5 6.733 (0.03577)cmultimate test diameterGros2001
GSI0.16 0.1547 (0.0334)-gonado somatic indexCellFena1990
JX00.082 0.003643 (0.9556)g/dfeeding rate for Ww = 0.006 g CellFena1990
JX10.288 0.2985 (0.03647)g/dfeeding rate for Ww = 4.45 g CellFena1990
Uni-variate data
DatasetFigure(RE)Independent variableDependent variableReference
tL see Fig. 1 (0.4212)time since settlementtest diameterGros2001
tL1 see Fig. 2 (0.158)time since settlementtest diameterGros2001
tL2 see Fig. 2 (0.3013)time since settlementtest diameterGros2001
tL3 see Fig. 2 (0.3983)time since settlementtest diameterGros2001
tL4 see Fig. 2 (0.2343)time since settlementtest diameterGros2001
LW see Fig. 3 (0.1135)test diameterwet weightCellFena1990
Pseudo-data at Tref
DataGeneralised animalParacentrotus lividusUnitDescription
v 0.02 0.0005733cm/denergy conductance
kap 0.8 0.4568-allocation fraction to soma
kap_R 0.95 0.95-reproduction efficiency
p_M 18 18.6J/^3vol-spec som maint
k_J 0.002 0.0021/dmaturity maint rate coefficient
kap_G 0.8 0.8003-growth efficiency


  • morphological metamorphosis 18 d after birth at 19.5 C (= settlement) (ref: CellFena1990)
  • sigmoidal growth after settlement probably results from intra-specific competition (ref: Gros2001)
  • anus and mouth open 7 d after settlement (ref: Gros2001)


  • Wiki
  • Kooy2010
  • Gros2001
  • CellFena1990
  • ecol_mar

Bibtex files with references for this entry

Bas Kooijman, 2012/12/27

accepted: 2015/11/06

refer to this entry as: AmP Paracentrotus lividus version 2015/11/06