Hypanus guttatus: Population traits

at T = 27.6 °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: 2025/05/22
symbol units thinning falsethinning true thinning falsethinning true description
femalemale femalemale femalemale femalemale
f - 0.596683 0.596683 NaN NaN 1 1 1 1 scaled functional response
r 1/d 0 0 0 0 0.000649043 0.000649043 NaN NaN spec pop growth rate
t2 d NaN NaN NaN NaN 1067.95 1067.95 NaN NaN population doubling time
a_b d 239.719 250.149 NaN NaN 226.321 233.686 NaN NaN age at birth
t_p d 2644.97 NaN NaN NaN 1166.37 2211.98 NaN NaN time since birth at puberty
S_b - 0.999925 0.999884 NaN NaN 0.999936 0.999905 NaN NaN survival probability at birth
S_p - 0.999558 0.999269 NaN NaN 0.999659 0.999465 NaN NaN survival probability at puberty
theta_0b - 0.0386244 0.0460974 NaN NaN 0.141317 0.147619 NaN NaN frac of ind that is embryo
theta_bp - 0.038625 0.0460963 NaN NaN 0.122005 0.126832 NaN NaN fraction of individuals that is juvenile
theta_pi - 0.922751 0.907806 NaN NaN 0.736678 0.725549 NaN NaN frac of ind that is adult
L_bi cm 9.04747 6.84424 NaN NaN 9.37089 7.77502 NaN NaN mean structural length of post-natals
L2_bi cm^2 86.155 48.6283 NaN NaN 104.622 69.0786 NaN NaN mean squared structural length of post-natals
L3_bi cm^3 845.514 354.057 NaN NaN 1309.57 672.696 NaN NaN mean cubed structural length of post-natals
Ww_bi g 2115.68 745.483 NaN NaN 4606.6 1919.08 NaN NaN mean wet weight of post-natals
L_pi cm 9.28259 7.02508 NaN NaN 10.3216 8.52118 NaN NaN mean structural length of adults
L2_pi cm^2 89.263 50.5462 NaN NaN 119.726 78.9736 NaN NaN mean squared structural length of adults
L3_pi cm^3 879.158 370.198 NaN NaN 1518.09 782.424 NaN NaN mean cubed structural length of adults
Ww_pi g 2199.86 779.468 NaN NaN 5340.11 2232.11 NaN NaN mean wet weight of adults
R 1/d 6.83486e-05 0 NaN NaN 0.00133933 0 NaN NaN mean reproduction rate of adults
J_X g/d 7.03318 2.92145 NaN NaN 14.3136 6.95518 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 0.0593815 0.0627745 NaN NaN yield of living structure on food
Y_VX_d mol/mol 0.0283716 0.031672 NaN NaN 0.00650946 0.00857301 NaN NaN yield of dead structure on food
Y_EX mol/mol 0 0 NaN NaN 0.149502 0.11631 NaN NaN yield of living reserve on food
Y_EX_d mol/mol 0.042621 0.0350147 NaN NaN 0.0163885 0.0158842 NaN NaN yield of dead reserve on food
Y_CX mol/mol 0.75816 0.762143 NaN NaN 0.60943 0.635552 NaN NaN yield of CO2 on food
Y_HX mol/mol 0.651152 0.654573 NaN NaN 0.523415 0.54585 NaN NaN yield of H2O on food
Y_OX mol/mol -0.89135 -0.896033 NaN NaN -0.716492 -0.747203 NaN NaN yield of O2 on food
Y_NX mol/mol 0.0614724 0.0617954 NaN NaN 0.0494133 0.0515313 NaN NaN yield of N-waste on food
mu_TX J/mol 427373 429867 NaN NaN 342286 357833 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