Anguilla anguilla: Population traits

at T = 10 °C with background hazards for embryo, leptocephalus, shrink, post-shrink juv, adult: 0, 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 ssj f_minf f_max date: 2023/03/18
symbol units thin falsethin truethin falsethin truethin falsethin truedescription
f - 0.208362 NaN 0.604181 NaN 1 1 scaled functional response
r 1/d 0 0 0.00406172 NaN 0.00468672 0.000297656 spec pop growth rate
t2 d NaN NaN 170.654 NaN 147.896 2328.68 population doubling time
a_b d 13.1678 NaN 13.1678 NaN 13.1678 13.1678 age at birth
t_s d 1681.37 NaN 1681.37 NaN 1681.37 1681.37 time since birth at start accel
t_j d 1681.37 NaN 1681.37 NaN 1681.37 1681.37 time since birth at metam
t_p d 3362.78 NaN 3362.78 NaN 3362.78 3362.78 time since birth at puberty
S_b - 1 NaN 1 NaN 1 1 survival probability at birth
S_s - 1 NaN 1 NaN 1 0.420084 survival probability at metam
S_j - 0.999688 NaN 0.999711 NaN 0.999718 0.000260841 survival probability at metam
S_p - 0.99968 NaN 0.999702 NaN 0.99971 0.000253004 survival probability at puberty
theta_0b - 0.00062741 NaN 0.0552558 NaN 0.0595956 0.357658 frac of ind that is embryo
theta_bs - 0.000496083 NaN 0.0492019 NaN 0.056282 0.23201 frac of ind between b and s
theta_sj - 0.0628412 NaN 0.894521 NaN 0.883767 0.410211 frac of ind between s and j
theta_jp - 0.000764536 NaN 8.08549e-05 NaN 3.2268e-05 8.715e-05 frac of ind between j and p
theta_pi - 0.935271 NaN 0.000940735 NaN 0.000323282 3.38846e-05 frac of ind that is adult
L_bi cm 1.98647 NaN 0.368778 NaN 0.434186 0.184764 mean structural length of post-natals
L2_bi cm^2 4.4226 NaN 0.228707 NaN 0.327884 0.117279 mean squared structural length of post-natals
L3_bi cm^3 10.2125 NaN 0.197986 NaN 0.353264 0.162355 mean cubed structural length of post-natals
Ww_bi g 12.3799 NaN 0.319828 NaN 0.713092 0.327727 mean wet weight of post-natals
L_pi cm 1.98743 NaN 0.386031 NaN 0.458132 0.25737 mean structural length of adults
L2_pi cm^2 4.4248 NaN 0.241106 NaN 0.348539 0.181767 mean squared structural length of adults
L3_pi cm^3 10.2175 NaN 0.208854 NaN 0.375739 0.254048 mean cubed structural length of adults
Ww_pi g 12.386 NaN 0.337385 NaN 0.75846 0.512817 mean wet weight of adults
R 1/d 0 NaN 0 NaN 0 0 mean reproduction rate of adults
J_X g/d 0.0155468 NaN 0.00233127 NaN 0.0055318 0.00197864 mean ingestion rate of wet food by post-natals
Y_PX mol/mol 0.109375 NaN 0.109375 NaN 0.109375 0.109375 yield of faeces on food
Y_VX mol/mol 0 NaN 0.344946 NaN 0.299296 0.0244239 yield of living structure on food
Y_VX_d mol/mol 0.0360899 NaN 1.37644e-05 NaN 9.19904e-06 0.198574 yield of dead structure on food
Y_EX mol/mol 0 NaN 0.212283 NaN 0.304858 0.0248777 yield of living reserve on food
Y_EX_d mol/mol 0.00765949 NaN 8.4707e-06 NaN 9.36998e-06 0.202264 yield of dead reserve on food
Y_CX mol/mol 0.846876 NaN 0.333374 NaN 0.286452 0.440485 yield of CO2 on food
Y_HX mol/mol 0.60928 NaN 0.239844 NaN 0.206086 0.316905 yield of H2O on food
Y_OX mol/mol -0.920977 NaN -0.362544 NaN -0.311516 -0.479028 yield of O2 on food
Y_NX mol/mol 0.127031 NaN 0.0500061 NaN 0.0429678 0.0660728 yield of N-waste on food
mu_TX J/mol 450242 NaN 183260 NaN 155170 236073 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