Discus rotundatus: Population traits

at T = 21.5 °C with background hazards for embryo, larva, juv, adult: 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 abj f_minf f_max date: 2024/11/08
symbol units thin falsethin truethin falsethin truethin falsethin truedescription
f - 0.523426 0.564419 0.78221 0.78221 1 1 scaled functional response
r 1/d 0 0 0.00919632 0.00230087 0.013238 0.00314131 spec pop growth rate
t2 d NaN NaN 75.3723 301.255 52.3604 220.656 population doubling time
a_b d 17.9521 17.8339 17.3894 17.3894 17.1198 17.1198 age at birth
t_j d 1.4899 1.44257 1.27876 1.27876 1.18934 1.18934 time since birth at metam
t_p d 1271.36 712.606 295.319 295.319 217.742 217.742 time since birth at puberty
S_b - 0.999999 0.999999 0.999999 0.999999 0.999999 0.999999 survival probability at birth
S_j - 0.999998 0.871641 0.999999 0.863821 0.999999 0.859739 survival probability at metam
S_p - 0.999992 0.402524 0.999993 0.350782 0.999994 0.322212 survival probability at puberty
theta_0b - 0.0139394 0.141075 0.147943 0.346108 0.202822 0.417742 frac of ind that is embryo
theta_bj - 0.0011572 0.0106652 0.00997582 0.0231776 0.0124577 0.0261739 frac of ind between b and j
theta_jp - 0.0127861 0.0758472 0.116129 0.167882 0.149262 0.192341 frac of ind between j and p
theta_pi - 0.972117 0.772413 0.725952 0.462833 0.635458 0.363744 frac of ind that is adult
L_bi cm 0.090261 0.0875195 0.0858008 0.0819641 0.0853795 0.0803598 mean structural length of post-natals
L2_bi cm^2 0.00826943 0.00821639 0.00846733 0.00847559 0.00881181 0.0089636 mean squared structural length of post-natals
L3_bi cm^3 0.000763816 0.000797628 0.000914633 0.000998338 0.00103704 0.00122282 mean cubed structural length of post-natals
Ww_bi g 0.00268876 0.00296521 0.00435927 0.00475822 0.00603011 0.00711038 mean wet weight of post-natals
L_pi cm 0.0910658 0.0935676 0.0944336 0.101438 0.0976682 0.107259 mean structural length of adults
L2_pi cm^2 0.00837108 0.0090088 0.00970722 0.0114642 0.010696 0.0135688 mean squared structural length of adults
L3_pi cm^3 0.000774177 0.000882543 0.00106485 0.00139196 0.00128705 0.00192829 mean cubed structural length of adults
Ww_pi g 0.00272523 0.00328089 0.00507521 0.00663426 0.00748387 0.0112125 mean wet weight of adults
R 1/d 0 0.010447 0.0271678 0.0502512 0.0403922 0.0791403 mean reproduction rate of adults
J_X g/d 0.000149606 0.000160428 0.000229811 0.000230023 0.00030623 0.000311485 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 0.0366008 0.00998615 0.0448301 0.0123321 yield of living structure on food
Y_VX_d mol/mol 0.00442287 0.0101374 0.000132264 0.0181114 5.7041e-05 0.0214056 yield of dead structure on food
Y_EX mol/mol 0 0 0.137844 0.0376093 0.215846 0.0593758 yield of living reserve on food
Y_EX_d mol/mol 0.0111464 0.0275489 0.000498124 0.0682102 0.000274638 0.103062 yield of dead reserve on food
Y_CX mol/mol 0.875056 0.852939 0.71555 0.756708 0.629618 0.694449 yield of CO2 on food
Y_HX mol/mol 0.631985 0.616011 0.516786 0.546511 0.454724 0.501547 yield of H2O on food
Y_OX mol/mol -0.951623 -0.927571 -0.778161 -0.82292 -0.684709 -0.755213 yield of O2 on food
Y_NX mol/mol 0.131258 0.127941 0.107333 0.113506 0.0944427 0.104167 yield of N-waste on food
mu_TX J/mol 464158 452279 378045 400251 331190 366290 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