Sthenoteuthis pteropus: Population traits

at T = 26 °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 NaN NaN 1 1 1 1 scaled functional response
r 1/d 0 0 0 0 0.00379431 0.00379431 0.000608384 0.000608384 spec pop growth rate
t2 d NaN NaN NaN NaN 182.681 182.681 1139.32 1139.32 population doubling time
a_b d NaN NaN NaN NaN 5.47653 5.832 5.47653 5.832 age at birth
t_j d NaN NaN NaN NaN 32.3317 43.497 32.3317 43.497 time since birth at metam
t_p d NaN NaN NaN NaN 159.855 133.92 159.855 133.92 time since birth at puberty
S_b - NaN NaN NaN NaN 1 1 1 1 survival probability at birth
S_j - NaN NaN NaN NaN 1 1 0.283598 0.3688 survival probability at metam
S_p - NaN NaN NaN NaN 1 1 0.000587416 0.000587493 survival probability at puberty
theta_0b - NaN NaN NaN NaN 0.0290921 0.0344827 0.557784 0.499877 frac of ind that is embryo
theta_bj - NaN NaN NaN NaN 0.0285595 0.0338047 0.316879 0.316007 frac of ind between b and j
theta_jp - NaN NaN NaN NaN 0.131769 0.201196 0.124605 0.183318 frac of ind between j and p
theta_pi - NaN NaN NaN NaN 0.810579 0.730516 0.000732816 0.00079796 frac of ind that is adult
L_bi cm NaN NaN NaN NaN 5.16587 3.02827 0.0851703 0.0845358 mean structural length of post-natals
L2_bi cm^2 NaN NaN NaN NaN 42.2751 14.947 0.02309 0.0167481 mean squared structural length of post-natals
L3_bi cm^3 NaN NaN NaN NaN 402.967 85.6481 0.10554 0.0379436 mean cubed structural length of post-natals
Ww_bi g NaN NaN NaN NaN 657.714 121.72 0.172261 0.0539241 mean wet weight of post-natals
L_pi cm NaN NaN NaN NaN 6.14079 3.92684 2.09991 1.8017 mean structural length of adults
L2_pi cm^2 NaN NaN NaN NaN 50.6205 19.7289 8.94439 5.32107 mean squared structural length of adults
L3_pi cm^3 NaN NaN NaN NaN 482.664 113.189 62.9484 23.015 mean cubed structural length of adults
Ww_pi g NaN NaN NaN NaN 787.795 160.86 102.743 32.7081 mean wet weight of adults
R 1/d NaN NaN NaN NaN 1717.23 571.737 73.3822 109.415 mean reproduction rate of adults
J_X g/d NaN NaN NaN NaN 16.409 3.86364 0.00647864 0.00267724 mean ingestion rate of wet food by post-natals
Y_PX mol/mol NaN NaN NaN NaN 0.109375 0.109375 0.109375 0.109375 yield of faeces on food
Y_VX mol/mol NaN NaN NaN NaN 0.0931794 0.0841112 0.00991088 0.00862241 yield of living structure on food
Y_VX_d mol/mol NaN NaN NaN NaN 0.237153 0.293401 0.278483 0.375055 yield of dead structure on food
Y_EX mol/mol NaN NaN NaN NaN 0.0589061 0.0354247 0.00626546 0.00363146 yield of living reserve on food
Y_EX_d mol/mol NaN NaN NaN NaN 0.149923 0.12357 0.176051 0.15796 yield of dead reserve on food
Y_CX mol/mol NaN NaN NaN NaN 0.351464 0.354118 0.419914 0.345356 yield of CO2 on food
Y_HX mol/mol NaN NaN NaN NaN 0.252663 0.254572 0.301872 0.248272 yield of H2O on food
Y_OX mol/mol NaN NaN NaN NaN -0.382217 -0.385103 -0.456657 -0.375574 yield of O2 on food
Y_NX mol/mol NaN NaN NaN NaN 0.0527195 0.0531177 0.0629871 0.0518033 yield of N-waste on food
mu_TX J/mol NaN NaN NaN NaN 192478 196297 228029 191786 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