Clarias gariepinus x Heterobranchus longifilis: Population traits

at T = 29.5 °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: 2022/12/20
symbol units thin falsethin truethin falsethin truethin falsethin truedescription
f - 0.17383 0.215211 0.607605 0.607605 1 1 scaled functional response
r 1/d 0 0 0.0729477 0.000691682 0.0996222 0.00090395 spec pop growth rate
t2 d NaN NaN 9.50197 1002.12 6.95776 766.798 population doubling time
a_b d 1.04005 1.00417 0.861362 0.861362 0.813609 0.813609 age at birth
t_j d 4.02902 3.37249 1.6368 1.6368 1.27164 1.27164 time since birth at metam
t_p d 552.14 282.266 75.0055 75.0055 54.0652 54.0652 time since birth at puberty
S_b - 1 1 1 1 1 1 survival probability at birth
S_j - 1 0.409955 1 0.204876 1 0.145202 survival probability at metam
S_p - 1 0.0500467 1 0.0491658 1 0.0489996 survival probability at puberty
theta_0b - 0.000184792 0.373835 0.0608007 0.584418 0.0777045 0.634629 frac of ind that is embryo
theta_bj - 0.000185223 0.24791 0.0571982 0.29349 0.0718059 0.281573 frac of ind between b and j
theta_jp - 0.000532309 0.151217 0.0485069 0.0574413 0.0379361 0.0316689 frac of ind between j and p
theta_pi - 0.999098 0.227038 0.833494 0.064651 0.812553 0.0521292 frac of ind that is adult
L_bi cm 4.92458 1.74909 1.86883 0.612191 1.84078 0.487345 mean structural length of post-natals
L2_bi cm^2 24.4229 9.89704 6.29831 6.65618 6.35328 6.82384 mean squared structural length of post-natals
L3_bi cm^3 121.41 60.4199 29.107 107.999 31.1025 173.848 mean cubed structural length of post-natals
Ww_bi g 152.313 79.46 55.0036 204.087 76.6454 428.412 mean wet weight of post-natals
L_pi cm 4.92801 4.609 2.08643 3.27 2.06871 2.67892 mean structural length of adults
L2_pi cm^2 24.4404 27.2676 7.09385 42.6992 7.20791 47.7312 mean squared structural length of adults
L3_pi cm^3 121.497 166.633 32.7978 694.217 35.3025 1218.48 mean cubed structural length of adults
Ww_pi g 152.423 219.143 61.9782 1311.87 86.9954 3002.69 mean wet weight of adults
R 1/d 0 1.8859 0 18.5677 0 28.0576 mean reproduction rate of adults
J_X g/d 8.40208 4.22347 7.63572 8.06367 12.6908 13.621 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 0.278073 0.00926392 0.244153 0.0115374 yield of living structure on food
Y_VX_d mol/mol 0.00264231 0.00783012 4.75743e-08 0.0201328 2.0068e-08 0.024102 yield of dead structure on food
Y_EX mol/mol 0 0 0.247403 0.00824217 0.357509 0.016894 yield of living reserve on food
Y_EX_d mol/mol 0.000672566 0.0024675 4.23272e-08 0.0179123 2.93853e-08 0.0352921 yield of dead reserve on food
Y_CX mol/mol 0.88731 0.880327 0.365149 0.835074 0.288963 0.8028 yield of CO2 on food
Y_HX mol/mol 0.63837 0.633347 0.262704 0.600789 0.207893 0.57757 yield of H2O on food
Y_OX mol/mol -0.96495 -0.957356 -0.397099 -0.908143 -0.314247 -0.873044 yield of O2 on food
Y_NX mol/mol 0.133097 0.132049 0.0547723 0.125261 0.0433445 0.12042 yield of N-waste on food
mu_TX J/mol 470809 467228 197392 443417 153794 425978 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