Protopterus aethiopicus: Population traits

at T = 27.5 °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: 2022/12/20
symbol units thin falsethin truethin falsethin truethin falsethin truedescription
f - 0.34178 0.346682 0.673341 0.673341 1 1 scaled functional response
r 1/d 0 0 0.00661035 0.00131226 0.00829128 0.00154543 spec pop growth rate
t2 d NaN NaN 104.858 528.209 83.5995 448.515 population doubling time
a_b d 16.6928 16.6653 15.6134 15.6134 15.1831 15.1831 age at birth
t_p d 8324 3797.56 970.048 970.048 761.732 761.732 time since birth at puberty
S_b - 1 1 1 1 1 1 survival probability at birth
S_p - 1 0.401825 1 0.336683 1 0.31063 survival probability at puberty
theta_0b - 0.00213918 0.306357 0.0979706 0.437249 0.118165 0.46422 frac of ind that is embryo
theta_bp - 0.00214181 0.194156 0.0884571 0.249028 0.10431 0.253395 fraction of individuals that is juvenile
theta_pi - 0.995719 0.499486 0.813572 0.313723 0.777525 0.282385 frac of ind that is adult
L_bi cm 4.58037 1.50471 1.21006 0.592147 1.1455 0.576037 mean structural length of post-natals
L2_bi cm^2 22.0465 5.65268 2.34778 1.0276 2.15347 1.00061 mean squared structural length of post-natals
L3_bi cm^3 108.146 26.2418 6.18381 3.95739 5.65838 4.24299 mean cubed structural length of post-natals
Ww_bi g 253.706 62.0682 22.5811 14.451 27.9413 20.9521 mean wet weight of post-natals
L_pi cm 4.58976 2.00949 1.31722 0.89187 1.26831 0.896874 mean structural length of adults
L2_pi cm^2 22.0938 7.83314 2.59744 1.80583 2.43508 1.85443 mean squared structural length of adults
L3_pi cm^3 108.379 36.4387 6.85484 7.09026 6.41571 8.04022 mean cubed structural length of adults
Ww_pi g 254.251 86.1864 25.0314 25.8911 31.6811 39.7029 mean wet weight of adults
R 1/d 0 0 0 0 0 0 mean reproduction rate of adults
J_X g/d 1.36762 0.355683 0.286927 0.125584 0.390856 0.181612 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 0.142466 0.0413516 0.120032 0.0361057 yield of living structure on food
Y_VX_d mol/mol 0.0125746 0.0310696 1.44116e-05 0.0796138 6.91269e-06 0.0696252 yield of dead structure on food
Y_EX mol/mol 0 0 0.377768 0.10965 0.472691 0.142186 yield of living reserve on food
Y_EX_d mol/mol 0.0169248 0.0424177 3.82144e-05 0.211107 2.72225e-05 0.274187 yield of dead reserve on food
Y_CX mol/mol 0.796541 0.755852 0.342564 0.415235 0.275528 0.340882 yield of CO2 on food
Y_HX mol/mol 0.684116 0.64917 0.294214 0.356628 0.23664 0.29277 yield of H2O on food
Y_OX mol/mol -0.936474 -0.888637 -0.402744 -0.488181 -0.323932 -0.400767 yield of O2 on food
Y_NX mol/mol 0.0645844 0.0612853 0.0277754 0.0336677 0.0223401 0.0276391 yield of N-waste on food
mu_TX J/mol 449025 426159 190078 231493 149760 187258 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