Geophagus brasiliensis: Population traits

at T = 25 °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: 2025/04/28
symbol units thinning falsethinning true thinning falsethinning true description
femalemale femalemale femalemale femalemale
f - 0.255821 0.255821 0.515352 0.515352 1 1 1 1 scaled functional response
r 1/d 0 0 0 0 0.00535255 0.00535255 0.00029658 0.00029658 spec pop growth rate
t2 d NaN NaN NaN NaN 129.498 129.498 2337.13 2337.13 population doubling time
a_b d 27.8959 27.5268 24.9291 24.6309 22.7375 22.5163 22.7375 22.5163 age at birth
t_p d 3815.63 2795.12 1016.17 933.829 571.275 541.196 571.275 541.196 time since birth at puberty
S_b - 0.999991 0.999992 0.999994 0.999994 0.999995 0.999995 0.999995 0.999995 survival probability at birth
S_p - 0.999951 0.999957 0.523719 0.510045 0.999976 0.999978 0.422183 0.411905 survival probability at puberty
theta_0b - 0.00819731 0.00785645 0.247082 0.257218 0.114616 0.113557 0.347299 0.35578 frac of ind that is embryo
theta_bp - 0.00820934 0.00786768 0.178803 0.183689 0.10156 0.100742 0.224204 0.226889 fraction of individuals that is juvenile
theta_pi - 0.983593 0.984276 0.574115 0.559092 0.783824 0.785701 0.428497 0.41733 frac of ind that is adult
L_bi cm 1.16804 1.2668 0.747999 0.768885 0.795516 0.827107 0.677288 0.68585 mean structural length of post-natals
L2_bi cm^2 1.50273 1.76965 1.18413 1.30367 0.95842 1.04545 1.29231 1.37788 mean squared structural length of post-natals
L3_bi cm^3 2.02605 2.59012 2.62478 3.12993 1.54767 1.77848 4.35245 4.97828 mean cubed structural length of post-natals
Ww_bi g 2.54299 3.30605 3.97389 4.87275 3.09126 3.70009 8.6934 10.3572 mean wet weight of post-natals
L_pi cm 1.1763 1.2755 0.92274 0.959691 0.872401 0.907045 0.928694 0.951104 mean structural length of adults
L2_pi cm^2 1.51501 1.78354 1.54193 1.72025 1.07723 1.17409 1.94791 2.10534 mean squared structural length of adults
L3_pi cm^3 2.04292 2.61078 3.44015 4.15601 1.74709 2.00539 6.62562 7.68039 mean cubed structural length of adults
Ww_pi g 2.56416 3.33242 5.20836 6.47018 3.48956 4.17215 13.2337 15.9788 mean wet weight of adults
R 1/d 0 0 0.0148356 0.0252801 0.0108774 0.0164892 0.0603622 0.0717289 mean reproduction rate of adults
J_X g/d 0.0127894 0.0163162 0.0203018 0.024214 0.0318851 0.0376787 0.042993 0.0496601 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 0.259808 0.252647 0.0300246 0.0297313 yield of living structure on food
Y_VX_d mol/mol 0.0750014 0.0729243 0.13802 0.134437 0.0010511 0.00094417 0.131159 0.127187 yield of dead structure on food
Y_EX mol/mol 0 0 0 0 0.259122 0.272979 0.0299454 0.0321239 yield of living reserve on food
Y_EX_d mol/mol 0.0191362 0.0201569 0.0709413 0.0748577 0.00104833 0.00102015 0.130812 0.137422 yield of dead reserve on food
Y_CX mol/mol 0.796487 0.797544 0.681663 0.681331 0.369595 0.363034 0.568684 0.564161 yield of CO2 on food
Y_HX mol/mol 0.573028 0.573788 0.490419 0.490179 0.265903 0.261183 0.409136 0.405882 yield of H2O on food
Y_OX mol/mol -0.86618 -0.867329 -0.741309 -0.740947 -0.401935 -0.3948 -0.618444 -0.613525 yield of O2 on food
Y_NX mol/mol 0.119473 0.119632 0.102249 0.1022 0.0554393 0.0544552 0.0853026 0.0846241 yield of N-waste on food
mu_TX J/mol 424474 424952 364472 364110 198977 195005 303492 300791 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