Acanthaster planci: Population traits

at T = 29 °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: 2025/05/20
symbol units thin falsethin truethin falsethin truethin falsethin truedescription
f - 0.261991 0.261991 0.630996 0.630996 1 1 scaled functional response
r 1/d 0 0 0.0167711 0.00247252 0.0200061 0.00231991 spec pop growth rate
t2 d NaN NaN 41.3298 280.34 34.6467 298.781 population doubling time
a_b d 13.0556 13.0556 12.3808 12.3808 12.182 12.182 age at birth
t_j d 33.5405 33.5405 26.7043 26.7043 24.9443 24.9443 time since birth at metam
t_p d 2321.22 2321.22 767.074 767.074 655.043 655.043 time since birth at puberty
S_b - 1 1 1 1 1 1 survival probability at birth
S_j - 1 0.114491 1 0.0754323 1 0.0656587 survival probability at metam
S_p - 1 0.00381885 1 0.00379299 1 0.00378663 survival probability at puberty
theta_0b - 0.00180343 0.68152 0.187295 0.724897 0.216054 0.734666 frac of ind that is embryo
theta_bj - 0.00180626 0.278897 0.152382 0.253375 0.169559 0.246825 frac of ind between b and j
theta_jp - 0.00283412 0.0348568 0.14101 0.019029 0.138442 0.0158865 frac of ind between j and p
theta_pi - 0.993556 0.00472605 0.519313 0.00269926 0.475944 0.00262243 frac of ind that is adult
L_bi cm 0.852834 0.00961963 0.0848561 0.00659258 0.0760251 0.00661743 mean structural length of post-natals
L2_bi cm^2 0.761423 0.00272016 0.0162795 0.000230724 0.0135019 0.000246124 mean squared structural length of post-natals
L3_bi cm^3 0.690412 0.00227778 0.00457706 0.000103298 0.00358974 0.000119461 mean cubed structural length of post-natals
Ww_bi g 3.81356 0.0125815 0.0544437 0.00122871 0.0655711 0.00218209 mean wet weight of post-natals
L_pi cm 0.856764 0.260487 0.126668 0.0842972 0.118253 0.0856961 mean structural length of adults
L2_pi cm^2 0.764978 0.18064 0.0253909 0.0194963 0.0221424 0.0209043 mean squared structural length of adults
L3_pi cm^3 0.693636 0.153472 0.00716148 0.010493 0.00591117 0.0120521 mean cubed structural length of adults
Ww_pi g 3.83137 0.847717 0.0851852 0.124813 0.107975 0.220147 mean wet weight of adults
R 1/d 0 0 0 0 0 0 mean reproduction rate of adults
J_X g/d 0.0389497 0.000137818 0.00200791 2.52768e-05 0.00263974 4.30874e-05 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 0.0382301 0.0101043 0.0272061 0.006432 yield of living structure on food
Y_VX_d mol/mol 0.00293477 0.00756053 3.18286e-07 0.0235683 1.47461e-07 0.017226 yield of dead structure on food
Y_EX mol/mol 0 0 0.416513 0.110086 0.469746 0.111056 yield of living reserve on food
Y_EX_d mol/mol 0.0132757 0.0342008 3.46769e-06 0.256775 2.54609e-06 0.297428 yield of dead reserve on food
Y_CX mol/mol 0.874415 0.848864 0.435878 0.490092 0.39367 0.458483 yield of CO2 on food
Y_HX mol/mol 0.634436 0.615898 0.316254 0.355589 0.28563 0.332655 yield of H2O on food
Y_OX mol/mol -0.950926 -0.923139 -0.474017 -0.532975 -0.428117 -0.4986 yield of O2 on food
Y_NX mol/mol 0.131162 0.12733 0.0653817 0.0735138 0.0590506 0.0687724 yield of N-waste on food
mu_TX J/mol 463731 449909 224301 253890 200535 236005 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