Icelus spatula: Population traits

at T = -0.5 °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: 2025/05/04
symbol units thin falsethin truethin falsethin truethin falsethin truedescription
f - 0.367348 NaN 0.683674 NaN 1 1 scaled functional response
r 1/d 0 0 0.00228038 NaN 0.00406401 NaN spec pop growth rate
t2 d NaN NaN 303.962 NaN 170.558 NaN population doubling time
a_b d 124 NaN 112.978 NaN 107.498 NaN age at birth
t_j d 656.686 NaN 362.291 NaN 276.453 NaN time since birth at metam
t_p d 4798.71 NaN 1626.97 NaN 1139.68 NaN time since birth at puberty
S_b - 0.999842 NaN 0.999879 NaN 0.999894 NaN survival probability at birth
S_j - 0.999047 NaN 0.999367 NaN 0.999491 NaN survival probability at metam
S_p - 0.990989 NaN 0.997569 NaN 0.998604 NaN survival probability at puberty
theta_0b - 0.0328366 NaN 0.228244 NaN 0.354289 NaN frac of ind that is embryo
theta_bj - 0.0328492 NaN 0.176433 NaN 0.228907 NaN frac of ind between b and j
theta_jp - 0.140534 NaN 0.260076 NaN 0.207416 NaN frac of ind between j and p
theta_pi - 0.79378 NaN 0.335248 NaN 0.209388 NaN frac of ind that is adult
L_bi cm 0.579764 NaN 0.38035 NaN 0.313791 NaN mean structural length of post-natals
L2_bi cm^2 0.389928 NaN 0.238972 NaN 0.174187 NaN mean squared structural length of post-natals
L3_bi cm^3 0.278049 NaN 0.197386 NaN 0.14004 NaN mean cubed structural length of post-natals
Ww_bi g 0.388043 NaN 0.342709 NaN 0.290847 NaN mean wet weight of post-natals
L_pi cm 0.669412 NaN 0.664215 NaN 0.635359 NaN mean structural length of adults
L2_pi cm^2 0.46807 NaN 0.5109 NaN 0.476293 NaN mean squared structural length of adults
L3_pi cm^3 0.337314 NaN 0.446204 NaN 0.419219 NaN mean cubed structural length of adults
Ww_pi g 0.470752 NaN 0.774715 NaN 0.870668 NaN mean wet weight of adults
R 1/d 0.00882333 NaN 0.0361177 NaN 0.040353 NaN mean reproduction rate of adults
J_X g/d 0.00203607 NaN 0.00240929 NaN 0.00256947 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 0.186825 NaN 0.221495 NaN yield of living structure on food
Y_VX_d mol/mol 0.0641457 NaN 0.00566746 NaN 0.00164182 NaN yield of dead structure on food
Y_EX mol/mol 0 NaN 0.137547 NaN 0.238524 NaN yield of living reserve on food
Y_EX_d mol/mol 0.0253754 NaN 0.00417258 NaN 0.00176804 NaN yield of dead reserve on food
Y_CX mol/mol 0.801104 NaN 0.556413 NaN 0.427197 NaN yield of CO2 on food
Y_HX mol/mol 0.57635 NaN 0.400308 NaN 0.307344 NaN yield of H2O on food
Y_OX mol/mol -0.8712 NaN -0.605099 NaN -0.464576 NaN yield of O2 on food
Y_NX mol/mol 0.120166 NaN 0.0834619 NaN 0.0640795 NaN yield of N-waste on food
mu_TX J/mol 426471 NaN 298308 NaN 228771 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