Merluccius peruanus: Population traits

at T = 8.6 °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_min f_max date: 2025/05/19
symbol units thinning falsethinning true thinning falsethinning true description
femalemale femalemale femalemale femalemale
f - 0.228117 0.228117 0.233046 0.233046 1 1 1 1 scaled functional response
r 1/d 0 0 0 0 0.00971031 0.00971031 0.00192131 0.00192131 spec pop growth rate
t2 d NaN NaN NaN NaN 71.3826 71.3826 360.767 360.767 population doubling time
a_b d 26.4598 28.525 26.3714 28.424 21.9225 23.0002 21.9225 23.0002 age at birth
t_j d 75.894 110.938 74.6659 108.902 32.2188 39.677 32.2188 39.677 time since birth at metam
t_p d 6751.72 NaN 6028.42 NaN 1095.13 1455.82 1095.13 1455.82 time since birth at puberty
S_b - 0.999998 0.999997 0.999998 0.999997 0.999999 0.999998 0.999999 0.999998 survival probability at birth
S_j - 0.999992 0.999982 0.34405 0.456267 0.999996 0.999992 0.12657 0.172156 survival probability at metam
S_p - 0.999973 0.99991 0.0487557 0.0494702 0.999994 0.999987 0.0479432 0.0480745 survival probability at puberty
theta_0b - 0.00409267 0.00515114 0.486187 0.408038 0.19154 0.199985 0.666943 0.632156 frac of ind that is embryo
theta_bj - 0.0041006 0.00516102 0.299475 0.283285 0.155024 0.160141 0.272443 0.286715 frac of ind between b and j
theta_jp - 0.00766095 0.0149103 0.134817 0.21194 0.0621746 0.0956731 0.0236536 0.0412483 frac of ind between j and p
theta_pi - 0.984146 0.974778 0.079522 0.096737 0.591261 0.544201 0.036961 0.0398806 frac of ind that is adult
L_bi cm 2.34017 1.4417 0.170484 0.155827 0.429097 0.347965 0.102097 0.099164 mean structural length of post-natals
L2_bi cm^2 6.13664 2.34015 0.20259 0.118239 0.350786 0.226606 0.0421742 0.0347483 mean squared structural length of post-natals
L3_bi cm^3 16.8173 3.97847 0.47965 0.171668 0.421635 0.216083 0.0770695 0.0491644 mean cubed structural length of post-natals
Ww_bi g 34.3736 6.58961 0.991199 0.286771 2.3512 0.837779 0.429769 0.190616 mean wet weight of post-natals
L_pi cm 2.36714 1.46966 0.737459 0.612824 0.556449 0.473062 0.386596 0.367874 mean structural length of adults
L2_pi cm^2 6.20989 2.38818 1.28297 0.699244 0.476936 0.329706 0.341964 0.281548 mean squared structural length of adults
L3_pi cm^3 17.0182 4.06037 3.09713 1.04861 0.57626 0.31733 0.691533 0.450467 mean cubed structural length of adults
Ww_pi g 34.7844 6.72527 6.40024 1.75171 3.21345 1.23033 3.85625 1.74651 mean wet weight of adults
R 1/d 0 0 0 0 0 0 0 0 mean reproduction rate of adults
J_X g/d 0.17303 0.0412759 0.00578794 0.00210128 0.0435403 0.017643 0.0050198 0.00257305 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 0.109375 0.109375 yield of faeces on food
Y_VX mol/mol 0 0 0 0 0.0940327 0.118927 0.0294981 0.0367114 yield of living structure on food
Y_VX_d mol/mol 0.0240396 0.0283009 0.049744 0.058341 2.00385e-05 4.03044e-05 0.0613352 0.0772243 yield of dead structure on food
Y_EX mol/mol 0 0 0 0 0.430329 0.342168 0.134994 0.105623 yield of living reserve on food
Y_EX_d mol/mol 0.0250962 0.0185744 0.0530523 0.0391176 9.1704e-05 0.00011596 0.280693 0.222183 yield of dead reserve on food
Y_CX mol/mol 0.841489 0.84375 0.787829 0.793166 0.366151 0.429374 0.384104 0.448883 yield of CO2 on food
Y_HX mol/mol 0.605405 0.607031 0.566799 0.570639 0.263426 0.308911 0.276341 0.322947 yield of H2O on food
Y_OX mol/mol -0.915119 -0.917578 -0.856764 -0.862568 -0.39819 -0.466944 -0.417713 -0.488161 yield of O2 on food
Y_NX mol/mol 0.126223 0.126562 0.118174 0.118975 0.0549227 0.0644061 0.0576156 0.0673325 yield of N-waste on food
mu_TX J/mol 446677 448134 418449 421815 188742 224760 198455 235239 yield of heat on food

Remarks

  • Reprod-code O applies. Sex ratio is assumed to be 1:1. Parameters of male and female differ.
  • Buffer handling rule: release each egg as soon as reproduction buffer allows
  • Weights of adults do not include reproduction buffer