Dipturus trachyderma: Population traits

at T = 6 °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_min f_max date: 2024/10/26
symbol units thinning falsethinning true thinning falsethinning true description
femalemale femalemale femalemale femalemale
f - 0.694099 0.694099 0.781049 0.781049 1 1 1 1 scaled functional response
r 1/d 0 0 0 0 0.00048526 0.00048526 0.000104368 0.000104368 spec pop growth rate
t2 d NaN NaN NaN NaN 1428.4 1428.4 6641.4 6641.4 population doubling time
a_b d 592.229 592.099 589.509 589.392 584.668 584.574 584.668 584.574 age at birth
t_p d 17577.8 16779.7 10900 10771.1 7717.18 7678.75 7717.18 7678.75 time since birth at puberty
S_b - 0.999947 0.999948 0.999948 0.999948 0.999949 0.99995 0.999949 0.99995 survival probability at birth
S_p - 0.999688 0.99969 0.321419 0.321016 0.999712 0.999714 0.305189 0.30488 survival probability at puberty
theta_0b - 0.0409694 0.0408604 0.382643 0.383194 0.248743 0.248696 0.474171 0.474554 frac of ind that is embryo
theta_bp - 0.04097 0.040861 0.214467 0.214651 0.187295 0.187269 0.245576 0.245664 fraction of individuals that is juvenile
theta_pi - 0.918061 0.918279 0.40289 0.402156 0.563962 0.564035 0.280254 0.279782 frac of ind that is adult
L_bi cm 8.75733 8.79691 5.65692 5.66664 5.54737 5.55682 4.68017 4.68337 mean structural length of post-natals
L2_bi cm^2 83.4629 84.2457 44.736 44.9713 39.2357 39.3994 32.8449 32.9396 mean squared structural length of post-natals
L3_bi cm^3 831.757 843.724 427.858 432.022 331.534 333.918 311.211 313.186 mean cubed structural length of post-natals
Ww_bi g 14268.9 14548.1 8205.86 8328.29 8047.98 8147.98 7554.65 7642.09 mean wet weight of post-natals
L_pi cm 9.0418 9.08226 7.45242 7.47174 6.58559 6.59762 6.75754 6.76726 mean structural length of adults
L2_pi cm^2 86.9281 87.7354 65.6976 66.1127 50.2645 50.478 56.8133 57.0372 mean squared structural length of adults
L3_pi cm^3 868.228 880.621 648.746 655.718 436.525 439.666 572.136 576.367 mean cubed structural length of adults
Ww_pi g 14894.6 15184.3 12442.3 12640.6 10596.7 10728.4 13888.6 14064 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 16.4614 16.7059 9.9286 10.0349 11.1489 11.2561 9.33299 9.41061 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 0.0144301 0.0143955 0.00348016 0.00347336 yield of living structure on food
Y_VX_d mol/mol 0.00581313 0.00580152 0.0104776 0.0104521 0.000527766 0.000524052 0.0102589 0.0102301 yield of dead structure on food
Y_EX mol/mol 0 0 0 0 0.33586 0.33687 0.0810009 0.0812806 yield of living reserve on food
Y_EX_d mol/mol 0.0939121 0.0942324 0.190472 0.191038 0.0122838 0.0122634 0.238776 0.239395 yield of dead reserve on food
Y_CX mol/mol 0.731582 0.731297 0.637949 0.63745 0.487959 0.487079 0.515325 0.514527 yield of CO2 on food
Y_HX mol/mol 0.628326 0.628081 0.547908 0.547479 0.419088 0.418332 0.442592 0.441906 yield of H2O on food
Y_OX mol/mol -0.860104 -0.859768 -0.750022 -0.749434 -0.573682 -0.572647 -0.605856 -0.604917 yield of O2 on food
Y_NX mol/mol 0.0593175 0.0592943 0.0517256 0.0516851 0.0395642 0.0394929 0.0417831 0.0417184 yield of N-waste on food
mu_TX J/mol 410705 410538 356191 355898 268715 268199 284655 284187 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