Pangasius pangasius: Population traits

at T = 24 °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: 2025/01/18
symbol units thin falsethin truethin falsethin truethin falsethin truedescription
f - 0.181486 0.181486 0.590743 0.590743 1 1 scaled functional response
r 1/d 0 0 0.05364 0.0101129 0.0606206 0.0103638 spec pop growth rate
t2 d NaN NaN 12.9222 68.5407 11.4342 66.8818 population doubling time
a_b d 3.93469 3.93469 3.60581 3.60581 3.53276 3.53276 age at birth
t_j d 6.98236 6.98236 4.7936 4.7936 4.40392 4.40392 time since birth at metam
t_p d 697.673 697.673 203.581 203.581 175.128 175.128 time since birth at puberty
S_b - 1 1 1 1 1 1 survival probability at birth
S_j - 1 0.150246 1 0.0791108 1 0.0667616 survival probability at metam
S_p - 1 0.0346084 1 0.0343007 1 0.03425 survival probability at puberty
theta_0b - 0.000512384 0.615968 0.175581 0.712289 0.192491 0.725249 frac of ind that is embryo
theta_bj - 0.00051344 0.276711 0.144983 0.251572 0.155671 0.243354 frac of ind between b and j
theta_jp - 0.000397693 0.0376557 0.0419389 0.0118744 0.0335306 0.00822925 frac of ind between j and p
theta_pi - 0.998576 0.069665 0.637498 0.0242647 0.618307 0.0231682 frac of ind that is adult
L_bi cm 4.05101 0.454294 0.502173 0.08168 0.490371 0.0819953 mean structural length of post-natals
L2_bi cm^2 16.6367 1.55775 0.491871 0.0347485 0.476239 0.0368189 mean squared structural length of post-natals
L3_bi cm^3 68.6401 6.30479 0.702751 0.077782 0.68489 0.0935593 mean cubed structural length of post-natals
Ww_bi g 289.214 26.5652 8.05354 0.891383 12.8119 1.75017 mean wet weight of post-natals
L_pi cm 4.05464 2.25887 0.628658 0.3787 0.618768 0.38215 mean structural length of adults
L2_pi cm^2 16.6519 8.57266 0.634468 0.377234 0.620273 0.4018 mean squared structural length of adults
L3_pi cm^3 68.7027 34.7545 0.908667 0.920013 0.894321 1.10725 mean cubed structural length of adults
Ww_pi g 289.478 146.438 10.4133 10.5434 16.7297 20.7128 mean wet weight of adults
R 1/d 974.821 0 0 0 0 0 mean reproduction rate of adults
J_X g/d 7.4044 0.692761 0.714162 0.0485236 1.17102 0.0872711 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 0.052783 0.0162107 0.035455 0.0111105 yield of living structure on food
Y_VX_d mol/mol 0.00127424 0.00368878 9.8363e-09 0.0335075 4.94707e-09 0.0228818 yield of dead structure on food
Y_EX mol/mol 0 0 0.552111 0.169565 0.627786 0.196729 yield of living reserve on food
Y_EX_d mol/mol 0.00409475 0.0118538 1.02888e-07 0.350489 8.75955e-08 0.405157 yield of dead reserve on food
Y_CX mol/mol 0.885256 0.875082 0.285731 0.320853 0.227384 0.254746 yield of CO2 on food
Y_HX mol/mol 0.636893 0.629573 0.205568 0.230836 0.16359 0.183276 yield of H2O on food
Y_OX mol/mol -0.962716 -0.951652 -0.310733 -0.348928 -0.24728 -0.277037 yield of O2 on food
Y_NX mol/mol 0.132788 0.131262 0.0428597 0.048128 0.0341076 0.038212 yield of N-waste on food
mu_TX J/mol 469611 464136 142448 161612 109490 124466 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