Dipturus kwangtungensis: Population traits

at T = 18.4 °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: 2025/05/23
symbol units thin falsethin truethin falsethin truethin falsethin truedescription
f - 0.663254 NaN 0.831627 NaN 1 1 scaled functional response
r 1/d 0 0 0.000562633 NaN 0.000807032 NaN spec pop growth rate
t2 d NaN NaN 1231.97 NaN 858.884 NaN population doubling time
a_b d 191.233 NaN 186.562 NaN 183.234 NaN age at birth
t_p d 7154.53 NaN 3901.87 NaN 3063.28 NaN time since birth at puberty
S_b - 0.999919 NaN 0.999924 NaN 0.999928 NaN survival probability at birth
S_p - 0.999587 NaN 0.999625 NaN 0.999651 NaN survival probability at puberty
theta_0b - 0.0281875 NaN 0.104458 NaN 0.140011 NaN frac of ind that is embryo
theta_bp - 0.0281917 NaN 0.094059 NaN 0.120775 NaN fraction of individuals that is juvenile
theta_pi - 0.943621 NaN 0.801483 NaN 0.739214 NaN frac of ind that is adult
L_bi cm 4.83793 NaN 3.65257 NaN 3.41772 NaN mean structural length of post-natals
L2_bi cm^2 26.0026 NaN 16.8838 NaN 15.4144 NaN mean squared structural length of post-natals
L3_bi cm^3 147.587 NaN 90.1744 NaN 83.4687 NaN mean cubed structural length of post-natals
Ww_bi g 362.242 NaN 254.622 NaN 266.506 NaN mean wet weight of post-natals
L_pi cm 4.95116 NaN 3.95582 NaN 3.79876 NaN mean structural length of adults
L2_pi cm^2 26.7462 NaN 18.7289 NaN 17.7365 NaN mean squared structural length of adults
L3_pi cm^3 151.96 NaN 100.606 NaN 96.8844 NaN mean cubed structural length of adults
Ww_pi g 372.977 NaN 284.077 NaN 309.34 NaN mean wet weight of adults
R 1/d 0 NaN 0 NaN 0 NaN mean reproduction rate of adults
J_X g/d 0.752197 NaN 0.612399 NaN 0.672298 NaN mean ingestion rate of wet food by post-natals
Y_PX mol/mol 0.109375 NaN 0.109375 NaN 0.109375 NaN yield of faeces on food
Y_VX mol/mol 0 NaN 0.0828465 NaN 0.100197 NaN yield of living structure on food
Y_VX_d mol/mol 0.0504688 NaN 0.0136163 NaN 0.00775333 NaN yield of dead structure on food
Y_EX mol/mol 0 NaN 0.151084 NaN 0.219719 NaN yield of living reserve on food
Y_EX_d mol/mol 0.0734037 NaN 0.0248314 NaN 0.0170021 NaN yield of dead reserve on food
Y_CX mol/mol 0.709246 NaN 0.571879 NaN 0.505007 NaN yield of CO2 on food
Y_HX mol/mol 0.609142 NaN 0.491163 NaN 0.43373 NaN yield of H2O on food
Y_OX mol/mol -0.833843 NaN -0.672344 NaN -0.593725 NaN yield of O2 on food
Y_NX mol/mol 0.0575064 NaN 0.0463685 NaN 0.0409465 NaN yield of N-waste on food
mu_TX J/mol 399878 NaN 321858 NaN 283333 NaN 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