Gymnura altavela: Population traits

at T = 23.6 °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: 2022/12/20
symbol units thinning falsethinning true thinning falsethinning true description
femalemale femalemale femalemale femalemale
f - 0.294514 0.294514 NaN NaN 1 1 1 1 scaled functional response
r 1/d 0 0 0 0 0.000715444 0.000715444 NaN NaN spec pop growth rate
t2 d NaN NaN NaN NaN 968.835 968.835 NaN NaN population doubling time
a_b d 235.293 245.56 NaN NaN 208.162 212.679 NaN NaN age at birth
t_p d 1910.36 2.56081e+22 NaN NaN 654.442 785.164 NaN NaN time since birth at puberty
S_b - 0.999962 0.999942 NaN NaN 0.999973 0.999961 NaN NaN survival probability at birth
S_p - 0.999778 0.999641 NaN NaN 0.999869 0.999807 NaN NaN survival probability at puberty
theta_0b - 0.0294927 0.0348179 NaN NaN 0.139771 0.143213 NaN NaN frac of ind that is embryo
theta_bp - 0.0295007 0.0348287 NaN NaN 0.120443 0.123007 NaN NaN fraction of individuals that is juvenile
theta_pi - 0.941007 0.930353 NaN NaN 0.739785 0.73378 NaN NaN frac of ind that is adult
L_bi cm 14.7994 11.2635 NaN NaN 20.2398 17.652 NaN NaN mean structural length of post-natals
L2_bi cm^2 229.086 131.239 NaN NaN 543.856 396.296 NaN NaN mean squared structural length of post-natals
L3_bi cm^3 3639.04 1562.54 NaN NaN 17495.2 10391.7 NaN NaN mean cubed structural length of post-natals
Ww_bi g 7646.51 2846.32 NaN NaN 82913.2 39381.1 NaN NaN mean wet weight of post-natals
L_pi cm 15.0954 11.4928 NaN NaN 22.5479 19.6186 NaN NaN mean structural length of adults
L2_pi cm^2 235.359 135.156 NaN NaN 626.267 456.725 NaN NaN mean squared structural length of adults
L3_pi cm^3 3748.15 1615.85 NaN NaN 20304.6 12096.7 NaN NaN mean cubed structural length of adults
Ww_pi g 7875.79 2943.43 NaN NaN 96227.4 45842.3 NaN NaN mean wet weight of adults
R 1/d 0.000241047 0 NaN NaN 0.00169046 0.00112447 NaN NaN mean reproduction rate of adults
J_X g/d 22.8473 9.76496 NaN NaN 184.168 100.12 NaN NaN mean ingestion rate of wet food by post-natals
Y_PX mol/mol 0.109375 0.109375 NaN NaN 0.109375 0.109375 NaN NaN yield of faeces on food
Y_VX mol/mol 0 0 NaN NaN 0.0679643 0.0742575 NaN NaN yield of living structure on food
Y_VX_d mol/mol 0.0277108 0.0307404 NaN NaN 0.00311182 0.00433984 NaN NaN yield of dead structure on food
Y_EX mol/mol 0 0 NaN NaN 0.254132 0.207153 NaN NaN yield of living reserve on food
Y_EX_d mol/mol 0.0305164 0.0252561 NaN NaN 0.0116357 0.0121067 NaN NaN yield of dead reserve on food
Y_CX mol/mol 0.769968 0.772031 NaN NaN 0.512248 0.54831 NaN NaN yield of CO2 on food
Y_HX mol/mol 0.661294 0.663066 NaN NaN 0.439949 0.470921 NaN NaN yield of H2O on food
Y_OX mol/mol -0.905233 -0.907659 NaN NaN -0.602237 -0.644635 NaN NaN yield of O2 on food
Y_NX mol/mol 0.0624298 0.0625971 NaN NaN 0.0415336 0.0444576 NaN NaN yield of N-waste on food
mu_TX J/mol 434244 435602 NaN NaN 285723 307185 NaN NaN 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