Merluccius polli: Population traits

at T = 14 °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: 2025/05/20
symbol units thin falsethin truethin falsethin truethin falsethin truedescription
f - 0.268751 0.268751 0.634375 0.634375 1 1 scaled functional response
r 1/d 0 0 0.0223332 0.00311704 0.0289295 0.00353783 spec pop growth rate
t2 d NaN NaN 31.0366 222.373 23.9599 195.924 population doubling time
a_b d 9.71878 9.71878 9.13764 9.13764 8.95619 8.95619 age at birth
t_j d 20.9741 20.9741 15.7944 15.7944 14.459 14.459 time since birth at metam
t_p d 2245.86 2245.86 441.617 441.617 353.537 353.537 time since birth at puberty
S_b - 1 1 1 1 1 1 survival probability at birth
S_j - 1 0.142465 1 0.0863878 1 0.072358 survival probability at metam
S_p - 1 0.0149149 1 0.0145099 1 0.0144123 survival probability at puberty
theta_0b - 0.0012729 0.628933 0.184514 0.709888 0.228163 0.724748 frac of ind that is embryo
theta_bj - 0.00127375 0.276956 0.150537 0.258924 0.176174 0.249717 frac of ind between b and j
theta_jp - 0.00147513 0.0411947 0.0918583 0.0198281 0.0876636 0.0151478 frac of ind between j and p
theta_pi - 0.995978 0.052916 0.573091 0.0113594 0.507999 0.0103879 frac of ind that is adult
L_bi cm 1.92352 0.258317 0.482831 0.0678206 0.421697 0.0666398 mean structural length of post-natals
L2_bi cm^2 3.74975 0.401198 0.4509 0.0270007 0.36266 0.0261467 mean squared structural length of post-natals
L3_bi cm^3 7.34134 0.769241 0.582368 0.0563146 0.450448 0.0640086 mean cubed structural length of post-natals
Ww_bi g 22.5126 2.35891 3.42316 0.331017 3.91414 0.556199 mean wet weight of post-natals
L_pi cm 1.92862 1.51059 0.655695 0.501917 0.602401 0.485762 mean structural length of adults
L2_pi cm^2 3.76008 2.79646 0.638899 0.620402 0.547708 0.62072 mean squared structural length of adults
L3_pi cm^3 7.3616 5.3931 0.82842 1.43373 0.684071 1.69134 mean cubed structural length of adults
Ww_pi g 22.5747 16.5382 4.86945 8.42746 5.9442 14.6968 mean wet weight of adults
R 1/d 21.1563 0 0 0 0 0 mean reproduction rate of adults
J_X g/d 0.506846 0.0540527 0.144994 0.00821681 0.184139 0.0125429 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 0.0897012 0.0213629 0.0707685 0.0180541 yield of living structure on food
Y_VX_d mol/mol 0.00199495 0.0060413 1.37543e-07 0.0457111 5.51793e-08 0.0382601 yield of dead structure on food
Y_EX mol/mol 0 0 0.437562 0.104208 0.544171 0.138826 yield of living reserve on food
Y_EX_d mol/mol 0.00412266 0.0124846 6.70936e-07 0.222979 4.24298e-07 0.294199 yield of dead reserve on food
Y_CX mol/mol 0.884507 0.872099 0.363361 0.496364 0.275685 0.401285 yield of CO2 on food
Y_HX mol/mol 0.636354 0.627427 0.261418 0.357107 0.19834 0.288702 yield of H2O on food
Y_OX mol/mol -0.961902 -0.948408 -0.395155 -0.539796 -0.299807 -0.436397 yield of O2 on food
Y_NX mol/mol 0.132676 0.130815 0.0545041 0.0744547 0.0413528 0.0601928 yield of N-waste on food
mu_TX J/mol 469235 462613 186990 259010 137821 206179 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