Loligo vulgaris: Population traits

at T = 18 °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: 2025/05/23
symbol units thinning falsethinning true thinning falsethinning true description
femalemale femalemale femalemale femalemale
f - 0.053663 0.053663 0.053663 0.053663 1 1 1 1 scaled functional response
r 1/d 0 0 0 0 0.00891535 0.00891535 NaN NaN spec pop growth rate
t2 d NaN NaN NaN NaN 77.7476 77.7476 NaN NaN population doubling time
a_b d 57.101 56.2675 57.101 56.2675 36.4718 36.139 NaN 36.139 age at birth
t_j d 3267.58 2753.5 3267.58 2753.5 186.053 178.611 NaN 178.611 time since birth at metam
t_p d 4500.38 2768.95 4500.38 2768.95 233.661 179.574 NaN 179.574 time since birth at puberty
S_b - 0.999955 0.99996 0.999955 0.99996 0.999986 0.999988 NaN 0.999988 survival probability at birth
S_j - 0.999707 0.999745 0.85182 0.828293 0.999942 0.999949 NaN 0.144617 survival probability at metam
S_p - 0.848544 0.907527 8.91525e-05 9.11181e-05 0.999713 0.999758 NaN 7.07177e-05 survival probability at puberty
theta_0b - 0.0130229 0.0133703 0.138574 0.158594 0.287477 0.284303 NaN 0.64859 frac of ind that is embryo
theta_bj - 0.0130631 0.013409 0.128447 0.144988 0.207796 0.206114 NaN 0.298227 frac of ind between b and j
theta_jp - 0.684716 0.616166 0.732814 0.696228 0.398222 0.389919 NaN 0.0531094 frac of ind between j and p
theta_pi - 0.289198 0.357055 0.000164755 0.000190183 0.106506 0.119664 NaN 7.39523e-05 frac of ind that is adult
L_bi cm 0.990441 1.20159 0.109481 0.109955 0.844143 0.946121 NaN 0.113297 mean structural length of post-natals
L2_bi cm^2 1.78391 2.52535 0.0159295 0.0164553 2.4066 3.04752 NaN 0.019371 mean squared structural length of post-natals
L3_bi cm^3 3.83645 6.17365 0.00544799 0.00662665 9.97952 14.0851 NaN 0.0174762 mean cubed structural length of post-natals
Ww_bi g 4.13384 6.6967 0.0058703 0.00718808 24.395 36.3226 NaN 0.0450675 mean wet weight of post-natals
L_pi cm 2.25547 2.47504 2.14951 2.32025 3.60323 3.83801 NaN 3.41449 mean structural length of adults
L2_pi cm^2 5.19262 6.28853 4.73673 5.56891 14.5941 16.8692 NaN 13.6437 mean squared structural length of adults
L3_pi cm^3 12.1723 16.3358 10.6793 13.7765 65.1348 82.7655 NaN 62.6576 mean cubed structural length of adults
Ww_pi g 13.1159 17.7199 11.5071 14.9437 159.222 213.436 NaN 161.581 mean wet weight of adults
R 1/d 0.420291 2.17703 0.257987 1.89433 25.3585 29.9091 NaN 24.0278 mean reproduction rate of adults
J_X g/d 0.025819 0.0412695 4.7158e-05 5.8863e-05 0.750099 1.04702 NaN 0.00186132 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 NaN 0.109375 yield of faeces on food
Y_VX mol/mol 0 0 0 0 0.118612 0.119934 NaN -0.0116298 yield of living structure on food
Y_VX_d mol/mol 0.134821 0.130789 0.264882 0.271538 0.154377 0.139435 NaN 0.271424 yield of dead structure on food
Y_EX mol/mol 0 0 0 0 0.171336 0.189352 NaN -0.0183611 yield of living reserve on food
Y_EX_d mol/mol 0.0104508 0.0110809 0.0205327 0.0230055 0.222998 0.22014 NaN 0.428524 yield of dead reserve on food
Y_CX mol/mol 0.745353 0.748755 0.60521 0.596082 0.223303 0.221764 NaN 0.220667 yield of CO2 on food
Y_HX mol/mol 0.535826 0.538271 0.435079 0.428517 0.16053 0.159424 NaN 0.158635 yield of H2O on food
Y_OX mol/mol -0.810572 -0.814271 -0.658166 -0.648239 -0.242842 -0.241168 NaN -0.239976 yield of O2 on food
Y_NX mol/mol 0.111803 0.112313 0.0907815 0.0894123 0.0334954 0.0332646 NaN 0.0331001 yield of N-waste on food
mu_TX J/mol 399342 401011 328766 324078 119122 117595 NaN 117013 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