Trachurus murphyi: Population traits

at T = 15.3 °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: 2025/05/22
symbol units thin falsethin truethin falsethin truethin falsethin truedescription
f - 0.520994 0.532213 0.766107 0.766107 1 1 scaled functional response
r 1/d 0 0 0.00333143 0.000592185 0.00437343 0.000778684 spec pop growth rate
t2 d NaN NaN 208.063 1170.49 158.491 890.152 population doubling time
a_b d 11.0207 10.9942 10.5902 10.5902 10.3493 10.3493 age at birth
t_j d 3.06093 3.02919 2.57995 2.57995 2.3415 2.3415 time since birth at metam
t_p d 7685.91 6424.07 2851.45 2851.45 2227.02 2227.02 time since birth at puberty
S_b - 1 1 1 1 1 1 survival probability at birth
S_j - 1 0.607202 1 0.606874 1 0.606707 survival probability at metam
S_p - 1 0.294335 1 0.264077 1 0.246518 survival probability at puberty
theta_0b - 0.00139688 0.435619 0.0345832 0.484751 0.0441482 0.506234 frac of ind that is embryo
theta_bj - 0.000389081 0.0947685 0.00826401 0.0928531 0.00973948 0.0899428 frac of ind between b and j
theta_jp - 0.00101178 0.133763 0.0252103 0.146163 0.0325647 0.150564 frac of ind between j and p
theta_pi - 0.997202 0.335849 0.931942 0.276233 0.913548 0.253259 frac of ind that is adult
L_bi cm 4.74814 0.438573 1.11401 0.245963 0.983901 0.232191 mean structural length of post-natals
L2_bi cm^2 24.879 1.30137 2.12732 0.344042 1.7072 0.295667 mean squared structural length of post-natals
L3_bi cm^3 135.441 6.29455 5.4982 1.306 4.12965 1.12708 mean cubed structural length of post-natals
Ww_bi g 313.316 14.7392 16.1162 3.82811 14.5395 3.96817 mean wet weight of post-natals
L_pi cm 4.75471 0.69139 1.1514 0.399379 1.026 0.38649 mean structural length of adults
L2_pi cm^2 24.9139 2.18376 2.20354 0.63753 1.78599 0.571677 mean squared structural length of adults
L3_pi cm^3 135.631 10.5775 5.69567 2.43574 4.32086 2.19705 mean cubed structural length of adults
Ww_pi g 313.756 24.7681 16.695 7.13957 15.2127 7.73529 mean wet weight of adults
R 1/d 0 0 0 0 0 0 mean reproduction rate of adults
J_X g/d 0.852997 0.0455784 0.107272 0.0173463 0.11238 0.0194598 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 0.170751 0.0445855 0.16071 0.0451 yield of living structure on food
Y_VX_d mol/mol 0.0306007 0.0646804 0.000191636 0.0943992 9.2076e-05 0.0921505 yield of dead structure on food
Y_EX mol/mol 0 0 0.329749 0.0861023 0.405113 0.113686 yield of living reserve on food
Y_EX_d mol/mol 0.040188 0.0867741 0.000370082 0.182301 0.000232102 0.23229 yield of dead reserve on food
Y_CX mol/mol 0.819836 0.739171 0.389563 0.483237 0.324477 0.407398 yield of CO2 on food
Y_HX mol/mol 0.589827 0.531792 0.280269 0.347662 0.233443 0.293101 yield of H2O on food
Y_OX mol/mol -0.891572 -0.803848 -0.42365 -0.52552 -0.352869 -0.443046 yield of O2 on food
Y_NX mol/mol 0.122975 0.110876 0.0584345 0.0724855 0.0486716 0.0611098 yield of N-waste on food
mu_TX J/mol 435096 392434 205463 255386 169159 213588 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