Clarias anguillaris: 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: 2025/06/20
symbol units thin falsethin truethin falsethin truethin falsethin truedescription
f - 0.0709512 0.0709512 0.535476 0.535476 1 1 scaled functional response
r 1/d 0 0 0.11443 0.0191864 0.117757 0.016504 spec pop growth rate
t2 d NaN NaN 6.05738 36.127 5.88624 41.9987 population doubling time
a_b d 1.86468 1.86468 1.66598 1.66598 1.64829 1.64829 age at birth
t_j d 0.0230239 0.0230239 0.0143072 0.0143072 0.0136979 0.0136979 time since birth at metam
t_p d 254.857 254.857 48.2469 48.2469 44.3703 44.3703 time since birth at puberty
S_b - 1 1 1 1 1 1 survival probability at birth
S_j - 1 0.977461 1 0.976452 1 0.976389 survival probability at metam
S_p - 1 0.385373 1 0.266933 1 0.257323 survival probability at puberty
theta_0b - 0.000335327 0.0498013 0.173328 0.509603 0.176176 0.516428 frac of ind that is embryo
theta_bj - 4.14781e-06 0.000609048 0.0013523 0.0042631 0.00132778 0.00419071 frac of ind between b and j
theta_jp - 0.000331779 0.0301238 0.142132 0.250833 0.144014 0.250846 frac of ind between j and p
theta_pi - 0.999329 0.919466 0.683188 0.235301 0.678483 0.228535 frac of ind that is adult
L_bi cm 0.455516 0.425467 0.200388 0.118214 0.207222 0.122707 mean structural length of post-natals
L2_bi cm^2 0.20807 0.191772 0.0648642 0.0399261 0.0709081 0.0483895 mean squared structural length of post-natals
L3_bi cm^3 0.095144 0.0873551 0.0296198 0.0331142 0.0349171 0.0526645 mean cubed structural length of post-natals
Ww_bi g 0.264332 0.242692 0.427131 0.477522 0.910034 1.37258 mean wet weight of post-natals
L_pi cm 0.455654 0.43821 0.231683 0.194045 0.240472 0.205303 mean structural length of adults
L2_pi cm^2 0.208139 0.198115 0.0779138 0.0805931 0.0854977 0.0996423 mean squared structural length of adults
L3_pi cm^3 0.0951759 0.0902718 0.0358091 0.0688784 0.0423635 0.111292 mean cubed structural length of adults
Ww_pi g 0.264421 0.250796 0.516385 0.993259 1.10411 2.90057 mean wet weight of adults
R 1/d 7.78163 6.69759 0 1.27871 0.178315 2.06995 mean reproduction rate of adults
J_X g/d 0.0319446 0.0294423 0.0751833 0.0462778 0.153491 0.104746 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 0.0450818 0.0137289 0.0267882 0.00829796 yield of living structure on food
Y_VX_d mol/mol 0.00054295 0.00153147 1.22963e-09 0.0262894 6.77644e-10 0.0160575 yield of dead structure on food
Y_EX mol/mol 0 0 0.605019 0.184248 0.671385 0.207969 yield of living reserve on food
Y_EX_d mol/mol 0.00096549 0.0027233 1.65022e-08 0.352816 1.69836e-08 0.402444 yield of dead reserve on food
Y_CX mol/mol 0.889117 0.88637 0.240524 0.313542 0.192452 0.255856 yield of CO2 on food
Y_HX mol/mol 0.63967 0.637694 0.173044 0.225576 0.138458 0.184074 yield of H2O on food
Y_OX mol/mol -0.966914 -0.963928 -0.26157 -0.340977 -0.209291 -0.278243 yield of O2 on food
Y_NX mol/mol 0.133367 0.132956 0.0360786 0.0470314 0.0288678 0.0383784 yield of N-waste on food
mu_TX J/mol 471698 470236 117199 157105 89844.1 124595 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