Echinus esculentus: Population traits

at T = 10 °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: 2024/12/04
symbol units thin falsethin truethin falsethin truethin falsethin truedescription
f - 0.278837 NaN 0.639418 NaN 1 1 scaled functional response
r 1/d 0 0 0.00840676 NaN 0.0132523 NaN spec pop growth rate
t2 d NaN NaN 82.4512 NaN 52.304 NaN population doubling time
a_b d 6.40395 NaN 5.57009 NaN 5.17732 NaN age at birth
t_j d 106.288 NaN 50.6684 NaN 35.427 NaN time since birth at metam
t_p d 7001.09 NaN 1384.4 NaN 879.327 NaN time since birth at puberty
S_b - 1 NaN 1 NaN 1 NaN survival probability at birth
S_j - 1 NaN 1 NaN 1 NaN survival probability at metam
S_p - 0.999983 NaN 0.999996 NaN 0.999998 NaN survival probability at puberty
theta_0b - 0.000839866 NaN 0.0455658 NaN 0.0660698 NaN frac of ind that is embryo
theta_bj - 0.000844143 NaN 0.0436641 NaN 0.0619302 NaN frac of ind between b and j
theta_jp - 0.0131663 NaN 0.287399 NaN 0.287998 NaN frac of ind between j and p
theta_pi - 0.98515 NaN 0.623371 NaN 0.584002 NaN frac of ind that is adult
L_bi cm 2.56321 NaN 0.358045 NaN 0.325058 NaN mean structural length of post-natals
L2_bi cm^2 7.32692 NaN 0.299857 NaN 0.257732 NaN mean squared structural length of post-natals
L3_bi cm^3 21.7685 NaN 0.361732 NaN 0.301389 NaN mean cubed structural length of post-natals
Ww_bi g 24.0502 NaN 0.44868 NaN 0.414685 NaN mean wet weight of post-natals
L_pi cm 2.59918 NaN 0.531608 NaN 0.501252 NaN mean structural length of adults
L2_pi cm^2 7.43109 NaN 0.458356 NaN 0.411326 NaN mean squared structural length of adults
L3_pi cm^3 22.0781 NaN 0.553799 NaN 0.481931 NaN mean cubed structural length of adults
Ww_pi g 24.3923 NaN 0.686914 NaN 0.663095 NaN mean wet weight of adults
R 1/d 0 NaN 0 NaN 0 NaN mean reproduction rate of adults
J_X g/d 0.0699203 NaN 0.00657606 NaN 0.00884467 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 0.462434 NaN 0.451582 NaN yield of living structure on food
Y_VX_d mol/mol 0.0626612 NaN 8.99394e-05 NaN 3.29495e-05 NaN yield of dead structure on food
Y_EX mol/mol 0 NaN 0.111154 NaN 0.169756 NaN yield of living reserve on food
Y_EX_d mol/mol 0.00656808 NaN 2.16184e-05 NaN 1.23862e-05 NaN yield of dead reserve on food
Y_CX mol/mol 0.821396 NaN 0.316926 NaN 0.269242 NaN yield of CO2 on food
Y_HX mol/mol 0.595968 NaN 0.229947 NaN 0.19535 NaN yield of H2O on food
Y_OX mol/mol -0.893268 NaN -0.344657 NaN -0.2928 NaN yield of O2 on food
Y_NX mol/mol 0.123209 NaN 0.0475389 NaN 0.0403862 NaN yield of N-waste on food
mu_TX J/mol 437557 NaN 180092 NaN 153320 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