Dipturus oxyrinchus: Population traits

at T = 10.2 °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: 2022/12/20
symbol units thinning falsethinning true thinning falsethinning true description
femalemale femalemale femalemale femalemale
f - 0.555969 0.555969 0.671422 0.671422 1 1 1 1 scaled functional response
r 1/d 0 0 0 0 0.000633729 0.000633729 0.000128196 0.000128196 spec pop growth rate
t2 d NaN NaN NaN NaN 1093.76 1093.76 5406.95 5406.95 population doubling time
a_b d 499.744 504.538 487.78 492.097 466.532 469.902 466.532 469.902 age at birth
t_p d 12643.5 7.2297e+22 6827.67 7995.68 4048.73 4333.65 4048.73 4333.65 time since birth at puberty
S_b - 0.999843 0.999827 0.999853 0.999839 0.99987 0.999858 0.99987 0.999858 survival probability at birth
S_p - 0.999128 0.999026 0.450397 0.462999 0.999344 0.999275 0.390427 0.399669 survival probability at puberty
theta_0b - 0.0400749 0.0417203 0.28511 0.276124 0.25764 0.259396 0.410034 0.402585 frac of ind that is embryo
theta_bp - 0.0400734 0.0417176 0.190061 0.186619 0.191679 0.192569 0.240984 0.239231 fraction of individuals that is juvenile
theta_pi - 0.919852 0.916562 0.52483 0.537257 0.550681 0.548036 0.348983 0.358184 frac of ind that is adult
L_bi cm 6.07689 5.70087 4.71787 4.56429 4.44591 4.31705 4.18996 4.12409 mean structural length of post-natals
L2_bi cm^2 39.8191 34.918 28.5755 26.2117 24.6016 22.9643 24.9954 23.7359 mean squared structural length of post-natals
L3_bi cm^3 272.715 223.273 202.641 174.464 162.629 144.932 197.426 178.075 mean cubed structural length of post-natals
Ww_bi g 669.544 526.091 558.737 460.22 588.271 498.489 714.137 612.482 mean wet weight of post-natals
L_pi cm 6.25205 5.86761 5.68355 5.44213 5.23497 5.0739 5.61932 5.47064 mean structural length of adults
L2_pi cm^2 41.3676 36.3166 37.3797 33.8572 31.4824 29.3612 39.0945 36.5688 mean squared structural length of adults
L3_pi cm^3 284.205 233.039 272.773 232.019 215.441 192.119 326.803 290.419 mean cubed structural length of adults
Ww_pi g 697.753 549.102 752.111 612.044 779.303 660.785 1182.13 998.886 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 0.944803 0.772233 0.818821 0.700066 1.04994 0.913484 1.06674 0.944178 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 0.0981611 0.100547 0.0237255 0.0241781 yield of living structure on food
Y_VX_d mol/mol 0.0380261 0.0390229 0.0663663 0.0679416 0.00288254 0.00314882 0.0649454 0.0667001 yield of dead structure on food
Y_EX mol/mol 0 0 0 0 0.256912 0.24528 0.0620956 0.0589815 yield of living reserve on food
Y_EX_d mol/mol 0.0553321 0.0529253 0.116624 0.111282 0.00754433 0.00768143 0.169978 0.162712 yield of dead reserve on food
Y_CX mol/mol 0.737472 0.738776 0.654562 0.658046 0.48574 0.493921 0.527139 0.534699 yield of CO2 on food
Y_HX mol/mol 0.633384 0.634504 0.562176 0.565169 0.417183 0.424208 0.452738 0.459231 yield of H2O on food
Y_OX mol/mol -0.867028 -0.868561 -0.769553 -0.773649 -0.571073 -0.580691 -0.619745 -0.628633 yield of O2 on food
Y_NX mol/mol 0.059795 0.0599008 0.0530726 0.0533551 0.0393844 0.0400476 0.042741 0.043354 yield of N-waste on food
mu_TX J/mol 415759 416572 368699 370815 271722 276638 295309 299840 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