Dipturus laevis: Population traits

at T = 7.3 °C with background hazards for embryo, juv, adult: 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 std f_minf f_max date: 2024/10/26
symbol units thin falsethin truethin falsethin truethin falsethin truedescription
f - 0.440624 0.555271 0.777635 0.777635 1 1 scaled functional response
r 1/d 0 0 0.00107612 0.000167107 0.00128276 0.000220557 spec pop growth rate
t2 d NaN NaN 644.119 4147.93 540.354 3142.71 population doubling time
a_b d 282.803 278.278 273.01 273.01 269.938 269.938 age at birth
t_p d 6200.92 3467.23 2450.05 2450.05 2099.74 2099.74 time since birth at puberty
S_b - 0.99991 0.999914 0.999919 0.999919 0.999922 0.999922 survival probability at birth
S_p - 0.999458 0.371039 0.999556 0.335603 0.999583 0.316175 survival probability at puberty
theta_0b - 0.0468416 0.328196 0.256684 0.428371 0.294007 0.46537 frac of ind that is embryo
theta_bp - 0.0468417 0.19738 0.191332 0.235582 0.207947 0.245764 fraction of individuals that is juvenile
theta_pi - 0.906317 0.474424 0.551984 0.336048 0.498046 0.288866 frac of ind that is adult
L_bi cm 4.40274 3.6877 3.63103 3.45228 3.63517 3.41503 mean structural length of post-natals
L2_bi cm^2 20.5393 17.0718 16.2051 16.6731 16.7433 17.3507 mean squared structural length of post-natals
L3_bi cm^3 99.0892 90.5175 84.4922 101.801 92.9601 118.796 mean cubed structural length of post-natals
Ww_bi g 480.485 529.572 658.441 793.328 905.001 1156.52 mean wet weight of post-natals
L_pi cm 4.54542 4.54555 4.28896 4.70301 4.41594 4.87928 mean structural length of adults
L2_pi cm^2 21.4592 23.0521 20.7564 26.3617 22.3985 29.6029 mean squared structural length of adults
L3_pi cm^3 103.971 126.276 111.845 169.663 129.292 215.377 mean cubed structural length of adults
Ww_pi g 504.154 738.779 871.604 1322.17 1258.71 2096.77 mean wet weight of adults
R 1/d 0 0 0 0.00536055 0.00136724 0.00896632 mean reproduction rate of adults
J_X g/d 1.56606 1.64037 2.18064 2.24361 2.89733 3.00242 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 0.0416957 0.00758226 0.0411572 0.00872672 yield of living structure on food
Y_VX_d mol/mol 0.0159938 0.029355 0.00161629 0.0285086 0.00102458 0.0267934 yield of dead structure on food
Y_EX mol/mol 0 0 0.283236 0.0515058 0.359523 0.0762311 yield of living reserve on food
Y_EX_d mol/mol 0.0615603 0.142386 0.0109793 0.193657 0.00895006 0.23405 yield of dead reserve on food
Y_CX mol/mol 0.752091 0.664967 0.511615 0.563669 0.443972 0.503962 yield of CO2 on food
Y_HX mol/mol 0.64594 0.571113 0.439405 0.484112 0.381309 0.432832 yield of H2O on food
Y_OX mol/mol -0.884215 -0.781786 -0.601493 -0.662692 -0.521967 -0.592496 yield of O2 on food
Y_NX mol/mol 0.0609803 0.0539163 0.0414823 0.0457029 0.0359977 0.0408618 yield of N-waste on food
mu_TX J/mol 423205 372932 283965 314039 244357 279100 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