Oreochromis esculentus: Population traits

at T = 28 °C with background hazards for embryo, juv, adult: 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 std f_minf f_max date: 2024/10/17
symbol units thin falsethin truethin falsethin truethin falsethin truedescription
f - 0.461215 0.796318 0.898159 0.898159 1 1 scaled functional response
r 1/d 0 0 0.00460206 3.94087e-05 0.00502855 6.79771e-05 spec pop growth rate
t2 d NaN NaN 150.617 17588.7 137.842 10196.8 population doubling time
a_b d 12.855 12.0327 11.886 11.886 11.7617 11.7617 age at birth
t_p d 4588.73 861.307 769.323 769.323 704.879 704.879 time since birth at puberty
S_b - 1 1 1 1 1 1 survival probability at birth
S_p - 0.999999 0.381555 1 0.369023 1 0.358723 survival probability at puberty
theta_0b - 0.00225261 0.347866 0.0531815 0.365518 0.0573759 0.379106 frac of ind that is embryo
theta_bp - 0.00225503 0.214857 0.0504073 0.221983 0.0541402 0.226935 fraction of individuals that is juvenile
theta_pi - 0.995492 0.437277 0.896411 0.412499 0.888484 0.393959 frac of ind that is adult
L_bi cm 3.58047 1.24941 1.5473 1.16898 1.52373 1.11452 mean structural length of post-natals
L2_bi cm^2 13.542 5.48126 3.76065 5.34516 3.70234 5.29442 mean squared structural length of post-natals
L3_bi cm^3 52.3189 32.7069 11.8473 34.9742 11.8182 37.6089 mean cubed structural length of post-natals
Ww_bi g 94.2419 77.9565 30.3341 89.5489 32.3507 102.949 mean wet weight of post-natals
L_pi cm 3.58818 1.77403 1.6236 1.69953 1.60488 1.65036 mean structural length of adults
L2_pi cm^2 13.5726 8.15794 3.97005 8.20321 3.92565 8.32421 mean squared structural length of adults
L3_pi cm^3 52.4374 48.7743 12.5131 53.7918 12.5379 59.2691 mean cubed structural length of adults
Ww_pi g 94.4554 116.253 32.0388 137.73 34.3207 162.241 mean wet weight of adults
R 1/d 0 0 0 0 0 0 mean reproduction rate of adults
J_X g/d 0.592335 0.413949 0.32033 0.455297 0.351121 0.50211 mean ingestion rate of wet food by post-natals
Y_PX mol/mol 0.109375 0.109375 0.109375 0.109375 0.109375 0.109375 yield of faeces on food
Y_VX mol/mol 0 0 0.170206 0.00302723 0.169253 0.0050916 yield of living structure on food
Y_VX_d mol/mol 0.0196918 0.0457427 0.000114125 0.0464145 9.01814e-05 0.0467836 yield of dead structure on food
Y_EX mol/mol 0 0 0.265593 0.00472377 0.294054 0.00884593 yield of living reserve on food
Y_EX_d mol/mol 0.015779 0.0632847 0.000178083 0.0724264 0.000156677 0.0812798 yield of dead reserve on food
Y_CX mol/mol 0.855154 0.781598 0.454533 0.764033 0.427071 0.748624 yield of CO2 on food
Y_HX mol/mol 0.615236 0.562316 0.327012 0.549679 0.307254 0.538593 yield of H2O on food
Y_OX mol/mol -0.92998 -0.849987 -0.494305 -0.830886 -0.46444 -0.814129 yield of O2 on food
Y_NX mol/mol 0.128273 0.11724 0.06818 0.114605 0.0640607 0.112294 yield of N-waste on food
mu_TX J/mol 453976 414822 241166 405347 226013 396993 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