Amphiuma means (Two-toed amphiuma):  

Predictions & Data for this entry

Model:  std  

MRE = 0.186
SMSE = 0.277

Zero-variate data
ab152.5 126.4 (0.1708)dage at birthamphibiaweb
tj 14 13.84 (0.01136)dtime since birth at metamamphibiaweb
tp1460 1409 (0.03489)dtime since birth at puberty for femalesamphibiaweb
tpm1095 1399 (0.2776)dtime since birth at puberty for malesamphibiaweb
am9855 9857 (0.0002506)dlife spanAnAge
Lb5.5 7.035 (0.2791)cmtotal length at birthamphibiaweb
Lj 6 7.572 (0.262)cmtotal length at metamamphibiaweb
Lp52.8 47.54 (0.09957)cmtotal length at puberty for femalesamphibiaweb
Lpm53.7 47.33 (0.1185)cmtotal length at puberty for malesamphibiaweb
Li116 92.56 (0.202)cmultimate total lengthWiki
Wwb0.55 0.5141 (0.06533)gwet weight at birthamphibiaweb
Wwp148.6 158.7 (0.06783)gwet weight at puberty for femalesamphibiaweb
Wwpm168.7 156.6 (0.0717)gwet weight at puberty for malesamphibiaweb
Wwi1042 1171 (0.1239)gultimate wet weightWiki
Ri0.5753 0.0004507 (0.9992)#/dmaximum reprod rateamphibiaweb
Pseudo-data at Tref
DataGeneralised animalAmphiuma meansUnitDescription
v 0.02 0.01167cm/denergy conductance
kap 0.8 0.9998-allocation fraction to soma
kap_R 0.95 0.95-reproduction efficiency
p_M 18 26.01J/^3vol-spec som maint
k_J 0.002 0.0021/dmaturity maint rate coefficient
kap_G 0.8 0.8018-growth efficiency


  • Survives starvation for a period of 3 yr (ref: amphibiaweb)


  • Males are assumed to differ from females by E_Hp only


  • Wiki
  • Kooy2010
  • amphibiaweb
  • AnAge

Bibtex files with references for this entry

Bas Kooijman, 2017/10/15

accepted: 2017/10/15

refer to this entry as: AmP Amphiuma means version 2017/10/15