Chelus fimbriata (Mata mata):  

Predictions & Data for this entry

Model:  std  

MRE = 0.091
SMSE = 0.139

Zero-variate data
ab208 170.6 (0.1796)dage at birthPrit2008
am1.307e+04 1.307e+04 (0.0003674)dlife spanAnAge
L03.5 3.285 (0.06136)cmegg diameterPrit2008
Lb4.9 5.159 (0.05277)cmcarapace length at birthPrit2008
Lp33.3 33.33 (0.001033)cmcarapace length at pubertyguess
Li44.7 46.02 (0.02954)cmultimate carapace lengthPrit2008
L274 27 13.2 (0.5112)cmcarapace length at 274 d since L = 8 cmPrit2008
Wwb 15 16.18 (0.0787)gwet weight at birthPrit2008
Wwi1.17e+04 1.149e+04 (0.01809)gultimate wet weightPrit2008
Ww61 30 31.99 (0.06637)gwet weight at 61 d since birthPrit2008
Ww122 60 54.83 (0.08622)gwet weight at 122 d since birthPrit2008
Ri0.08767 0.08773 (0.0007089)#/dmaximum reprod ratePrit2008
Uni-variate data
DatasetFigure(RE)Independent variableDependent variableReference
tL see Fig. 1 (0.0973)time since birthcarapace lengthPrit2008
Pseudo-data at Tref
DataGeneralised animalChelus fimbriataUnitDescription
v 0.02 0.01396cm/denergy conductance
kap 0.8 0.8639-allocation fraction to soma
kap_R 0.95 0.95-reproduction efficiency
p_M 18 23.96J/^3vol-spec som maint
k_J 0.002 0.0021/dmaturity maint rate coefficient
kap_G 0.8 0.8012-growth efficiency


  • Males may be somewhat smaller on average (ref: Prit2008)
  • Specialized in fish eating (ref: Prit2008)


  • Males are assumed to differ from females by {p_Am} and E_Hb only


  • Wiki
  • Kooy2010
  • Prit2008
  • AnAge

Bibtex files with references for this entry

Bas Kooijman, 2017/10/07

accepted: 2017/10/07

refer to this entry as: AmP Chelus fimbriata version 2017/10/07