Dasyatis chrysonota: Population traits

at T = 24.8 °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: 2025/05/22
symbol units thinning falsethinning true thinning falsethinning true description
femalemale femalemale femalemale femalemale
f - 0.647135 0.647135 NaN NaN 1 1 1 1 scaled functional response
r 1/d 0 0 0 0 0.000676302 0.000676302 NaN NaN spec pop growth rate
t2 d NaN NaN NaN NaN 1024.91 1024.91 NaN NaN population doubling time
a_b d 321.249 330.721 NaN NaN 306.273 313.275 NaN NaN age at birth
t_p d 2557.05 NaN NaN NaN 1122.39 1546.78 NaN NaN time since birth at puberty
S_b - 0.999906 0.999871 NaN NaN 0.999918 0.999891 NaN NaN survival probability at birth
S_p - 0.999367 0.999073 NaN NaN 0.99951 0.999312 NaN NaN survival probability at puberty
theta_0b - 0.049977 0.0569097 NaN NaN 0.192279 0.197907 NaN NaN frac of ind that is embryo
theta_bp - 0.0499731 0.056902 NaN NaN 0.156288 0.160093 NaN NaN fraction of individuals that is juvenile
theta_pi - 0.90005 0.886188 NaN NaN 0.651433 0.642 NaN NaN frac of ind that is adult
L_bi cm 8.92486 7.31404 NaN NaN 9.34787 8.18426 NaN NaN mean structural length of post-natals
L2_bi cm^2 82.136 54.6604 NaN NaN 98.2477 73.2183 NaN NaN mean squared structural length of post-natals
L3_bi cm^3 771.366 414.874 NaN NaN 1124.53 700.827 NaN NaN mean cubed structural length of post-natals
Ww_bi g 2180.26 1022.73 NaN NaN 4298.41 2287.54 NaN NaN mean wet weight of post-natals
L_pi cm 9.16737 7.50261 NaN NaN 10.4295 9.05576 NaN NaN mean structural length of adults
L2_pi cm^2 85.533 56.9325 NaN NaN 116.114 85.9261 NaN NaN mean squared structural length of adults
L3_pi cm^3 808.799 436.032 NaN NaN 1365.87 848.936 NaN NaN mean cubed structural length of adults
Ww_pi g 2286.06 1074.88 NaN NaN 5220.93 2770.98 NaN NaN mean wet weight of adults
R 1/d 0.000109093 0 NaN NaN 0.00159295 0.000274123 NaN NaN mean reproduction rate of adults
J_X g/d 8.341 4.45269 NaN NaN 15.4174 9.21669 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 0.0493285 0.0514253 NaN NaN yield of living structure on food
Y_VX_d mol/mol 0.01966 0.0213031 NaN NaN 0.00399802 0.00492573 NaN NaN yield of dead structure on food
Y_EX mol/mol 0 0 NaN NaN 0.139226 0.11643 NaN NaN yield of living reserve on food
Y_EX_d mol/mol 0.0359087 0.0312123 NaN NaN 0.0112841 0.0111521 NaN NaN yield of dead reserve on food
Y_CX mol/mol 0.772427 0.775251 NaN NaN 0.635279 0.65369 NaN NaN yield of CO2 on food
Y_HX mol/mol 0.663406 0.665831 NaN NaN 0.545615 0.561428 NaN NaN yield of H2O on food
Y_OX mol/mol -0.908124 -0.911444 NaN NaN -0.746883 -0.768528 NaN NaN yield of O2 on food
Y_NX mol/mol 0.0626292 0.0628582 NaN NaN 0.0515091 0.0530019 NaN NaN yield of N-waste on food
mu_TX J/mol 435279 437013 NaN NaN 356772 367688 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