Anguilla japonica: Population traits

at T = 17 °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: 2022/12/20
symbol units thin falsethin truethin falsethin truethin falsethin truedescription
f - 0.235088 NaN 0.617544 NaN 1 1 scaled functional response
r 1/d 0 0 0.00393984 NaN 0.00423359 0.000236719 spec pop growth rate
t2 d NaN NaN 175.933 NaN 163.725 2928.15 population doubling time
a_b d 29.0117 NaN 29.0117 NaN 29.0117 29.0117 age at birth
t_s d 1476.43 NaN 1476.43 NaN 1476.43 1476.43 time since birth at start accel
t_j d 1476.43 NaN 1476.43 NaN 1476.43 1476.43 time since birth at metam
t_p d 2971.29 NaN 2971.29 NaN 2971.29 2971.29 time since birth at puberty
S_b - 0.999997 NaN 0.999998 NaN 0.999998 0.999998 survival probability at birth
S_s - 0.999987 NaN 0.99999 NaN 0.99999 0.291618 survival probability at metam
S_j - 0.989381 NaN 0.990357 NaN 0.990665 0.000621042 survival probability at metam
S_p - 0.989019 NaN 0.990033 NaN 0.990354 0.000615964 survival probability at puberty
theta_0b - 0.0041827 NaN 0.110311 NaN 0.115414 0.468997 frac of ind that is embryo
theta_bs - 0.00374159 NaN 0.0961431 NaN 0.102283 0.252142 frac of ind between b and s
theta_sj - 0.186057 NaN 0.790926 NaN 0.780614 0.278343 frac of ind between s and j
theta_jp - 0.00258981 NaN 0.000201674 NaN 0.000139269 0.000143129 frac of ind between j and p
theta_pi - 0.803429 NaN 0.00241916 NaN 0.00155025 0.000374952 frac of ind that is adult
L_bi cm 1.10515 NaN 0.296892 NaN 0.313557 0.152086 mean structural length of post-natals
L2_bi cm^2 1.51127 NaN 0.143886 NaN 0.16455 0.0638283 mean squared structural length of post-natals
L3_bi cm^3 2.26196 NaN 0.095221 NaN 0.120222 0.0525168 mean cubed structural length of post-natals
Ww_bi g 5.55962 NaN 0.459882 NaN 0.865767 0.378194 mean wet weight of post-natals
L_pi cm 1.10912 NaN 0.326027 NaN 0.346942 0.23986 mean structural length of adults
L2_pi cm^2 1.51696 NaN 0.160924 NaN 0.185608 0.118717 mean squared structural length of adults
L3_pi cm^3 2.2705 NaN 0.106734 NaN 0.135913 0.0998363 mean cubed structural length of adults
Ww_pi g 5.58059 NaN 0.515487 NaN 0.978759 0.71896 mean wet weight of adults
R 1/d 0 NaN 0 NaN 0 0 mean reproduction rate of adults
J_X g/d 0.0129063 NaN 0.00322788 NaN 0.00597762 0.00231869 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 0.116223 NaN 0.0851462 0.00536152 yield of living structure on food
Y_VX_d mol/mol 0.048961 NaN 0.000198747 NaN 0.000127595 0.0602172 yield of dead structure on food
Y_EX mol/mol 0 NaN 0.445093 NaN 0.528025 0.0332488 yield of living reserve on food
Y_EX_d mol/mol 0.0713789 NaN 0.000761128 NaN 0.000791263 0.37343 yield of dead reserve on food
Y_CX mol/mol 0.770285 NaN 0.328349 NaN 0.276535 0.418367 yield of CO2 on food
Y_HX mol/mol 0.554177 NaN 0.236229 NaN 0.198952 0.300992 yield of H2O on food
Y_OX mol/mol -0.837685 NaN -0.357079 NaN -0.300732 -0.454974 yield of O2 on food
Y_NX mol/mol 0.115543 NaN 0.0492523 NaN 0.0414803 0.0627551 yield of N-waste on food
mu_TX J/mol 408761 NaN 169069 NaN 139014 216037 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