Todarodes sagittatus: Population traits

at T = 21 °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: 2025/03/22
symbol units thinning falsethinning true thinning falsethinning true description
femalemale femalemale femalemale femalemale
f - NaN NaN 0.0225046 0.0225046 1 1 1 1 scaled functional response
r 1/d 0 0 0 0 0.0151323 0.0151323 0.000400834 0.000400834 spec pop growth rate
t2 d NaN NaN NaN NaN 45.8059 45.8059 1729.26 1729.26 population doubling time
a_b d NaN NaN 36.218 36.3887 26.0742 26.088 26.0742 26.088 age at birth
t_j d NaN NaN 398.57 409.847 81.9093 82.0869 81.9093 82.0869 time since birth at metam
t_p d NaN NaN 924.167 871.819 164.378 154.977 164.378 154.977 time since birth at puberty
S_b - NaN NaN 0.999901 0.999897 0.999959 0.999957 0.999959 0.999957 survival probability at birth
S_j - NaN NaN 0.449308 0.457737 0.999851 0.999847 0.059057 0.0593319 survival probability at metam
S_p - NaN NaN 0.000149502 0.000149841 0.999596 0.999583 0.000138073 0.000138119 survival probability at puberty
theta_0b - NaN NaN 0.443734 0.437953 0.325673 0.325828 0.740037 0.739736 frac of ind that is embryo
theta_bj - NaN NaN 0.306247 0.304699 0.219938 0.219984 0.244713 0.244926 frac of ind between b and j
theta_jp - NaN NaN 0.249716 0.257041 0.2593 0.259672 0.0151553 0.0152436 frac of ind between j and p
theta_pi - NaN NaN 0.000302429 0.000305749 0.19509 0.194516 9.44424e-05 9.46041e-05 frac of ind that is adult
L_bi cm NaN NaN 0.0464013 0.0463793 0.681286 0.678741 0.0465278 0.0465275 mean structural length of post-natals
L2_bi cm^2 NaN NaN 0.00416602 0.00410676 1.74829 1.73643 0.00414453 0.00414566 mean squared structural length of post-natals
L3_bi cm^3 NaN NaN 0.00362928 0.00341224 7.21833 7.14794 0.0057298 0.00573515 mean cubed structural length of post-natals
Ww_bi g NaN NaN 0.00592229 0.00550736 209.871 202.168 0.166592 0.162209 mean wet weight of post-natals
L_pi cm NaN NaN 1.48982 1.46679 2.00264 1.99911 1.58131 1.5815 mean structural length of adults
L2_pi cm^2 NaN NaN 2.81025 2.70231 5.94996 5.92502 4.03296 4.0341 mean squared structural length of adults
L3_pi cm^3 NaN NaN 6.21786 5.81584 24.916 24.7397 15.0678 15.0743 mean cubed structural length of adults
Ww_pi g NaN NaN 10.1464 9.38677 724.423 699.722 438.091 426.351 mean wet weight of adults
R 1/d NaN NaN 226.611 281.443 545.405 564.836 346.807 364.416 mean reproduction rate of adults
J_X g/d NaN NaN 0.000110066 0.000103703 4.46269 4.30724 0.00486507 0.00473089 mean ingestion rate of wet food by post-natals
Y_PX mol/mol NaN NaN 0.109375 0.109375 0.109375 0.109375 0.109375 0.109375 yield of faeces on food
Y_VX mol/mol NaN NaN 0 0 0.0244762 0.0251123 0.000472079 0.000485922 yield of living structure on food
Y_VX_d mol/mol NaN NaN 0.116562 0.118148 7.5405e-05 8.03397e-05 0.0184371 0.0189219 yield of dead structure on food
Y_EX mol/mol NaN NaN 0 0 0.687161 0.685147 0.0132534 0.0132576 yield of living reserve on food
Y_EX_d mol/mol NaN NaN 0.0736448 0.0725429 0.00211697 0.00219194 0.517614 0.516253 yield of dead reserve on food
Y_CX mol/mol NaN NaN 0.700418 0.699934 0.176796 0.178093 0.340848 0.341706 yield of CO2 on food
Y_HX mol/mol NaN NaN 0.503523 0.503175 0.127096 0.128029 0.245032 0.245649 yield of H2O on food
Y_OX mol/mol NaN NaN -0.761705 -0.761178 -0.192265 -0.193677 -0.370673 -0.371606 yield of O2 on food
Y_NX mol/mol NaN NaN 0.105063 0.10499 0.0265193 0.026714 0.0511273 0.0512559 yield of N-waste on food
mu_TX J/mol NaN NaN 373714 373527 81121.4 81867.3 171068 171565 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