Sterechinus neumayeri: Population traits

at T = -1.5 °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 - 0.165922 NaN 0.582961 NaN 1 1 scaled functional response
r 1/d 0 0 0.00691064 NaN 0.0114112 NaN spec pop growth rate
t2 d NaN NaN 100.301 NaN 60.7425 NaN population doubling time
a_b d 25.953 NaN 21.1008 NaN 19.5137 NaN age at birth
t_j d 484.383 NaN 167.019 NaN 116.486 NaN time since birth at metam
t_p d 17621.8 NaN 2265.22 NaN 1477.16 NaN time since birth at puberty
S_b - 1 NaN 1 NaN 1 NaN survival probability at birth
S_j - 0.999999 NaN 1 NaN 1 NaN survival probability at metam
S_p - 0.99997 NaN 0.999996 NaN 0.999998 NaN survival probability at puberty
theta_0b - 0.00141975 NaN 0.135408 NaN 0.199289 NaN frac of ind that is embryo
theta_bj - 0.00142471 NaN 0.117314 NaN 0.159842 NaN frac of ind between b and j
theta_jp - 0.0251655 NaN 0.474668 NaN 0.42894 NaN frac of ind between j and p
theta_pi - 0.97199 NaN 0.27261 NaN 0.211928 NaN frac of ind that is adult
L_bi cm 0.537561 NaN 0.0448452 NaN 0.0361853 NaN mean structural length of post-natals
L2_bi cm^2 0.316912 NaN 0.00714785 NaN 0.00505495 NaN mean squared structural length of post-natals
L3_bi cm^3 0.192102 NaN 0.00176772 NaN 0.00113957 NaN mean cubed structural length of post-natals
Ww_bi g 0.229994 NaN 0.0029928 NaN 0.0024943 NaN mean wet weight of post-natals
L_pi cm 0.551959 NaN 0.12337 NaN 0.113544 NaN mean structural length of adults
L2_pi cm^2 0.325576 NaN 0.022369 NaN 0.0187388 NaN mean squared structural length of adults
L3_pi cm^3 0.197357 NaN 0.00559975 NaN 0.0042977 NaN mean cubed structural length of adults
Ww_pi g 0.236285 NaN 0.00948053 NaN 0.00940682 NaN mean wet weight of adults
R 1/d 0 NaN 0 NaN 0 NaN mean reproduction rate of adults
J_X g/d 0.000549391 NaN 4.37654e-05 NaN 5.30513e-05 NaN mean ingestion rate of wet food by post-natals
Y_PX mol/mol 0.109375 NaN 0.109375 NaN 0.109375 NaN yield of faeces on food
Y_VX mol/mol 0 NaN 0.279127 NaN 0.24512 NaN yield of living structure on food
Y_VX_d mol/mol 0.0266343 NaN 8.04543e-06 NaN 2.44344e-06 NaN yield of dead structure on food
Y_EX mol/mol 0 NaN 0.193442 NaN 0.2914 NaN yield of living reserve on food
Y_EX_d mol/mol 0.00525358 NaN 5.57569e-06 NaN 2.90477e-06 NaN yield of dead reserve on food
Y_CX mol/mol 0.858737 NaN 0.418043 NaN 0.354099 NaN yield of CO2 on food
Y_HX mol/mol 0.623062 NaN 0.303313 NaN 0.256919 NaN yield of H2O on food
Y_OX mol/mol -0.933877 NaN -0.454622 NaN -0.385083 NaN yield of O2 on food
Y_NX mol/mol 0.128811 NaN 0.0627064 NaN 0.0531149 NaN yield of N-waste on food
mu_TX J/mol 456293 NaN 226537 NaN 189667 NaN 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