Hydrocynus vittatus: Population traits

at T = 28 °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: 2024/10/09
symbol units thin falsethin truethin falsethin truethin falsethin truedescription
f - 0.41818 0.42293 0.711465 0.711465 1 1 scaled functional response
r 1/d 0 0 0.00991461 0.0020453 0.0143819 0.00294711 spec pop growth rate
t2 d NaN NaN 69.9117 338.897 48.1957 235.196 population doubling time
a_b d 6.64816 6.63587 6.11422 6.11422 5.82299 5.82299 age at birth
t_j d 17.4236 17.266 11.6876 11.6876 9.35643 9.35643 time since birth at metam
t_p d 4154.24 3736.98 1065.22 1065.22 735.906 735.906 time since birth at puberty
S_b - 1 1 1 1 1 1 survival probability at birth
S_j - 0.999998 0.402415 0.999999 0.289861 0.999999 0.22926 survival probability at metam
S_p - 0.999995 0.0936255 0.999997 0.0937454 0.999998 0.0937934 survival probability at puberty
theta_0b - 0.00167518 0.427681 0.0586885 0.518466 0.0801648 0.563526 frac of ind that is embryo
theta_bj - 0.00167996 0.281568 0.0553761 0.294752 0.0739003 0.291171 frac of ind between b and j
theta_jp - 0.0027229 0.145495 0.0476352 0.0804165 0.0419176 0.0504118 frac of ind between j and p
theta_pi - 0.993922 0.145257 0.8383 0.106366 0.804017 0.0948911 frac of ind that is adult
L_bi cm 6.92461 0.382821 1.19291 0.22194 1.05885 0.214183 mean structural length of post-natals
L2_bi cm^2 54.09 1.36847 2.57116 0.264788 2.0659 0.232226 mean squared structural length of post-natals
L3_bi cm^3 443.067 9.54438 7.79569 1.14461 5.80114 0.973806 mean cubed structural length of post-natals
Ww_bi g 684.266 14.7992 15.0159 2.20472 13.353 2.2415 mean wet weight of post-natals
L_pi cm 6.95473 1.19081 1.32423 0.624391 1.19351 0.597105 mean structural length of adults
L2_pi cm^2 54.3295 5.35593 2.88512 1.1558 2.36116 1.02438 mean squared structural length of adults
L3_pi cm^3 445.03 37.6011 8.75337 5.17673 6.63647 4.47405 mean cubed structural length of adults
Ww_pi g 687.297 58.303 16.8605 9.9713 15.2758 10.2983 mean wet weight of adults
R 1/d 0 0 0 0 0 0 mean reproduction rate of adults
J_X g/d 4.48855 0.114585 0.362781 0.0369062 0.409606 0.0454044 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 0.213052 0.0634329 0.203687 0.0632078 yield of living structure on food
Y_VX_d mol/mol 0.0407493 0.0810978 0.000146501 0.130461 6.13559e-05 0.128364 yield of dead structure on food
Y_EX mol/mol 0 0 0.197324 0.0587501 0.265158 0.0822833 yield of living reserve on food
Y_EX_d mol/mol 0.0221832 0.0446497 0.000135686 0.12083 7.98725e-05 0.167103 yield of dead reserve on food
Y_CX mol/mol 0.827692 0.764878 0.479967 0.517151 0.421639 0.449666 yield of CO2 on food
Y_HX mol/mol 0.595479 0.550287 0.34531 0.372061 0.303346 0.32351 yield of H2O on food
Y_OX mol/mol -0.900116 -0.831804 -0.521964 -0.562401 -0.458532 -0.489012 yield of O2 on food
Y_NX mol/mol 0.124154 0.114732 0.0719951 0.0775726 0.0632458 0.06745 yield of N-waste on food
mu_TX J/mol 439925 407394 257298 276784 224745 239551 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