Oreochromis aureus: Population traits

at T = 30 °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_min f_max date: 2025/05/23
symbol units thinning falsethinning true thinning falsethinning true description
femalemale femalemale femalemale femalemale
f - 0.301018 0.301018 0.371021 0.371021 1 1 1 1 scaled functional response
r 1/d 0 0 0 0 0.0114846 0.0114846 0.00108645 0.00108645 spec pop growth rate
t2 d NaN NaN NaN NaN 60.3544 60.3544 637.995 637.995 population doubling time
a_b d 12.675 12.2709 12.2738 11.9011 10.8033 10.5839 10.8033 10.5839 age at birth
t_p d 2810.94 958.711 961.974 670.839 325.378 287.593 325.378 287.593 time since birth at puberty
S_b - 0.999999 0.999999 0.999999 0.999999 0.999999 0.999999 0.999999 0.999999 survival probability at birth
S_p - 0.999994 0.999995 0.512625 0.477971 0.999996 0.999997 0.375543 0.355099 survival probability at puberty
theta_0b - 0.00457028 0.00410872 0.236398 0.264798 0.116619 0.114359 0.39358 0.411421 frac of ind that is embryo
theta_bp - 0.00457589 0.00411374 0.169239 0.183055 0.103093 0.101378 0.23856 0.242649 fraction of individuals that is juvenile
theta_pi - 0.990854 0.991778 0.594364 0.552147 0.780288 0.784262 0.36786 0.34593 frac of ind that is adult
L_bi cm 1.89627 2.33957 0.868042 0.933652 0.839195 0.912973 0.60079 0.609083 mean structural length of post-natals
L2_bi cm^2 3.8701 5.90022 1.55442 2.01314 1.10028 1.32845 1.137 1.26585 mean squared structural length of post-natals
L3_bi cm^3 8.14973 15.3515 3.58673 5.72405 1.9639 2.65816 4.33627 5.62501 mean cubed structural length of post-natals
Ww_bi g 11.8345 23.9199 5.58551 9.66187 4.91367 7.58687 10.8493 16.0548 mean wet weight of post-natals
L_pi cm 1.90422 2.34854 1.06547 1.1843 0.924357 1.00539 0.86855 0.902804 mean structural length of adults
L2_pi cm^2 3.88783 5.92457 1.98826 2.66998 1.24055 1.49499 1.851 2.12778 mean squared structural length of adults
L3_pi cm^3 8.18734 15.4152 4.60645 7.61984 2.22234 3.0007 7.1438 9.56543 mean cubed structural length of adults
Ww_pi g 11.8891 24.019 7.1735 12.8618 5.56029 8.56455 17.8738 27.3015 mean wet weight of adults
R 1/d 0 0.192947 0 0 0 0 0 0.0436533 mean reproduction rate of adults
J_X g/d 0.109015 0.205172 0.0539682 0.0862836 0.102961 0.153462 0.106398 0.14623 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 0.109375 0.109375 yield of faeces on food
Y_VX mol/mol 0 0 0 0 0.21906 0.198929 0.0442784 0.041792 yield of living structure on food
Y_VX_d mol/mol 0.0380589 0.035365 0.0823805 0.0769131 0.000142589 0.00010492 0.100185 0.0927973 yield of dead structure on food
Y_EX mol/mol 0 0 0 0 0.329027 0.368851 0.0665059 0.0774902 yield of living reserve on food
Y_EX_d mol/mol 0.0172075 0.0197388 0.0459083 0.0529117 0.000214169 0.000194541 0.150477 0.172063 yield of dead reserve on food
Y_CX mol/mol 0.835359 0.835521 0.762336 0.7608 0.342181 0.322546 0.529178 0.506482 yield of CO2 on food
Y_HX mol/mol 0.600994 0.601111 0.548459 0.547354 0.246181 0.232054 0.380714 0.364386 yield of H2O on food
Y_OX mol/mol -0.908453 -0.908629 -0.829041 -0.82737 -0.372122 -0.350769 -0.575481 -0.550799 yield of O2 on food
Y_NX mol/mol 0.125304 0.125328 0.11435 0.11412 0.0513272 0.048382 0.0793768 0.0759723 yield of N-waste on food
mu_TX J/mol 444006 443961 406060 404942 181816 170008 280928 267951 yield of heat on food

Remarks

  • Reprod-code O applies. Sex ratio is assumed to be 1:1. Parameters of male and female differ.
  • Buffer handling rule: release each egg as soon as reproduction buffer allows
  • Weights of adults do not include reproduction buffer