Arctocephalus tropicalis

COMPLETE = 2.5; MRE = 0.383; SMAE = 0.143; SMSE = 0.097

Data & predictions

data prd RE symbol units description
257 259.3 0.008943 tg d gestation time
239 237.5 0.006449 tx d time since birth at weaning
1278 1273 0.00364 tp d time since birth at puberty for females
1825 1.102e+04 5.04 tpm d time since birth at puberty
1.117e+04 1.104e+04 0.01115 am d life span
4220 4963 0.176 Wwb g wet weight at birth
5e+04 4.798e+04 0.0404 Wwi g ultimate wet weight for females
1.6e+05 1.599e+05 0.0007089 Wwim g ultimate wet weight for males
0.00274 0.0027 0.01458 Ri #/d maximum reprod rate
see figure 0.1022 tW_f time since birth vs. weight
see figure 0.1731 tW_m time since birth vs. weight
0.02 0.01846 0.07695 psd.v cm/d energy conductance
0.8 0.63 0.2125 psd.kap - allocation fraction to soma
0.95 0.95 0 psd.kap_R - reproduction efficiency
18 56.52 2.14 psd.p_M J/d.cm^3 vol-spec som maint
0.002 0.002 0 psd.k_J 1/d maturity maint rate coefficient
0.8 0.8005 0.0005677 psd.kap_G - growth efficiency

stx parameters at 20.0°C

symbol units value free description
T_ref K 293.1 0 Reference temperature
T_A K 8000 0 Arrhenius temperature
z - 15.81 1 zoom factor for females
F_m l/d.cm^2 6.5 0 {F_m}, max spec searching rate
kap_X - 0.1 0 digestion efficiency of food to reserve
kap_P - 0.7 0 faecation efficiency of food to faeces
v cm/d 0.01846 1 energy conductance
kap - 0.63 1 allocation fraction to soma
kap_R - 0.95 0 reproduction efficiency
p_M J/d.cm^3 56.52 1 [p_M], vol-spec somatic maint
p_T J/d.cm^2 0 0 {p_T}, surf-spec somatic maint
k_J 1/d 0.002 0 maturity maint rate coefficient
E_G J/cm^3 7841 1 [E_G], spec cost for structure
E_Hb J 3.838e+06 1 maturity at birth
E_Hx J 1.338e+07 1 maturity at weaning
E_Hp J 5.056e+07 1 maturity at puberty for females
h_a 1/d^2 2.099e-12 1 Weibull aging acceleration
s_G - 0.1 0 Gompertz stress coefficient
t_0 d 0 0 time at start development
E_Hpm J 8.978e+07 1 maturity at puberty for males
f - 1 0 scaled functional response for 0-var data
f_tW - 0.7754 1 scaled functional response for tW data
z_m - 21.48 1 zoom factor for males