Ptychocheilus grandis: Population traits

at T = 16 °C with background hazards for embryo, larva, juv, adult: 0, 0, 0, 0 1/d

Ln survival probability as function of age, with (dashed) and without (solid) thinning at max (red) and min (blue) scaled functional response for females.
Ln survivor function of the stable age distribution as function of age, with (dashed) and without (solid) thinning at max (red) and min (blue) scaled functional response for females.
model abj f_minf f_max date: 2025/05/22
symbol units thin falsethin truethin falsethin truethin falsethin truedescription
f - 0.336596 0.426764 0.713382 0.713382 1 1 scaled functional response
r 1/d 0 0 0.0054193 0.00044596 0.00761039 0.000642069 spec pop growth rate
t2 d NaN NaN 127.903 1554.28 91.0791 1079.55 population doubling time
a_b d 33.8136 32.5587 30.1935 30.1935 28.902 28.902 age at birth
t_j d 142.564 118.044 82.3985 82.3985 67.5813 67.5813 time since birth at metam
t_p d 6192.57 2836.62 1458.44 1458.44 1098.81 1098.81 time since birth at puberty
S_b - 0.999991 0.999992 0.999994 0.999994 0.999994 0.999994 survival probability at birth
S_j - 0.999955 0.339177 0.99997 0.237185 0.999975 0.186281 survival probability at metam
S_p - 0.999763 0.0198385 0.999917 0.0197063 0.999942 0.0196535 survival probability at puberty
theta_0b - 0.00726118 0.50728 0.15086 0.584781 0.197319 0.623388 frac of ind that is embryo
theta_bj - 0.00727062 0.310406 0.128236 0.306728 0.158524 0.297386 frac of ind between b and j
theta_jp - 0.023381 0.150001 0.177742 0.0861006 0.164302 0.0596987 frac of ind between j and p
theta_pi - 0.962087 0.0323126 0.543161 0.022391 0.479855 0.0195272 frac of ind that is adult
L_bi cm 4.58997 0.281658 1.09863 0.238358 0.97152 0.232105 mean structural length of post-natals
L2_bi cm^2 24.4712 0.553894 2.36173 0.336432 1.90202 0.31338 mean squared structural length of post-natals
L3_bi cm^3 138.202 3.08739 7.23289 2.0975 5.46952 2.17082 mean cubed structural length of post-natals
Ww_bi g 190.595 4.57139 13.0444 3.78281 11.6298 4.61582 mean wet weight of post-natals
L_pi cm 4.72858 1.94435 1.5885 1.53088 1.47203 1.46516 mean structural length of adults
L2_pi cm^2 25.2488 8.01573 3.65831 5.71104 3.14168 5.494 mean squared structural length of adults
L3_pi cm^3 142.604 46.9884 11.2974 38.7863 9.13749 41.7532 mean cubed structural length of adults
Ww_pi g 196.667 69.5741 20.3747 69.9505 19.4291 88.7798 mean wet weight of adults
R 1/d 0 0 0 0 0 0 mean reproduction rate of adults
J_X g/d 0.648674 0.0181564 0.132809 0.0181435 0.149897 0.0236282 mean ingestion rate of wet food by post-natals
Y_PX mol/mol 0.109375 0.109375 0.109375 0.109375 0.109375 0.109375 yield of faeces on food
Y_VX mol/mol 0 0 0.29514 0.0515558 0.277691 0.0589895 yield of living structure on food
Y_VX_d mol/mol 0.0813832 0.152783 0.000712818 0.15879 0.000310811 0.1528 yield of dead structure on food
Y_EX mol/mol 0 0 0.23714 0.0414242 0.312764 0.06644 yield of living reserve on food
Y_EX_d mol/mol 0.0308531 0.0734373 0.000572737 0.127585 0.000350067 0.172099 yield of dead reserve on food
Y_CX mol/mol 0.778389 0.664405 0.35706 0.511271 0.299508 0.440296 yield of CO2 on food
Y_HX mol/mol 0.560007 0.478003 0.256885 0.367831 0.21548 0.316768 yield of H2O on food
Y_OX mol/mol -0.846498 -0.722541 -0.388303 -0.556007 -0.325715 -0.478822 yield of O2 on food
Y_NX mol/mol 0.116758 0.0996608 0.053559 0.0766906 0.0449263 0.0660444 yield of N-waste on food
mu_TX J/mol 414839 355718 193832 274372 161286 235408 yield of heat on food

Remarks

  • Reprod-code O applies. Sex ratio is assumed to be 1:1. Parameters of male and female are the same.
  • Buffer handling rule: release each egg as soon as reproduction buffer allows
  • Weights of adults do not include reproduction buffer