Hypanus sabinus: Population traits

at T = 25.5 °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 - 0.375071 0.375071 0.797501 0.797501 1 1 1 1 scaled functional response
r 1/d 0 0 0 0 0.000948942 0.000948942 2.54578e-05 2.54578e-05 spec pop growth rate
t2 d NaN NaN NaN NaN 730.442 730.442 27227.2 27227.2 population doubling time
a_b d 149.856 157.3 133.717 139.063 129.979 134.697 129.979 134.697 age at birth
t_p d 770.735 NaN 256.271 341.978 213.452 269.453 213.452 269.453 time since birth at puberty
S_b - 0.999998 0.999997 0.999998 0.999998 0.999999 0.999998 0.999999 0.999998 survival probability at birth
S_p - 0.999985 0.999974 0.493004 0.560097 0.999992 0.999988 0.448502 0.505007 survival probability at puberty
theta_0b - 0.0133489 0.0156694 0.124507 0.0927956 0.116212 0.120258 0.176777 0.135789 frac of ind that is embryo
theta_bp - 0.013359 0.0156863 0.0866969 0.0688969 0.102752 0.105862 0.117058 0.0953891 fraction of individuals that is juvenile
theta_pi - 0.973292 0.968644 0.788796 0.838308 0.781036 0.77388 0.706165 0.768822 frac of ind that is adult
L_bi cm 6.83799 5.21146 12.3147 9.86109 11.3438 9.37641 13.8718 11.4218 mean structural length of post-natals
L2_bi cm^2 47.069 27.2397 166.274 102.696 147.87 97.564 224.231 143.636 mean squared structural length of post-natals
L3_bi cm^3 325.505 142.718 2344.56 1101.64 2110.34 1091.07 3878.54 1895.42 mean cubed structural length of post-natals
Ww_bi g 497.164 199.541 4973.55 2034.26 5077.55 2249.28 9331.9 3907.47 mean wet weight of post-natals
L_pi cm 6.87721 5.23421 13.1882 10.3245 12.234 10.0559 15.4295 12.3005 mean structural length of adults
L2_pi cm^2 47.497 27.4459 182.431 109.66 164.531 108.225 258.037 159.098 mean squared structural length of adults
L3_pi cm^3 329.1 144.134 2592.8 1185.86 2374.86 1228.26 4506 2120.15 mean cubed structural length of adults
Ww_pi g 502.656 201.52 5500.15 2189.78 5713.99 2532.1 10841.6 4370.75 mean wet weight of adults
R 1/d 0.000182493 0 0.0023702 0.00110068 0.00216767 0.00117808 0.00385825 0.00196272 mean reproduction rate of adults
J_X g/d 3.28102 1.43355 24.6443 11.4916 27.4815 13.6894 41.6732 20.154 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 0.0728704 0.0756324 0.00236937 0.00239424 yield of living structure on food
Y_VX_d mol/mol 0.00961689 0.010622 0.0217607 0.0226968 0.000347035 0.000473038 0.0231338 0.0243145 yield of dead structure on food
Y_EX mol/mol 0 0 0 0 0.102458 0.0802861 0.00333142 0.00254155 yield of living reserve on food
Y_EX_d mol/mol 0.0050716 0.00422915 0.0244006 0.0192144 0.000487943 0.000502144 0.0325269 0.0258106 yield of dead reserve on food
Y_CX mol/mol 0.810241 0.810091 0.781129 0.78506 0.660877 0.678701 0.767069 0.772897 yield of CO2 on food
Y_HX mol/mol 0.695883 0.695754 0.67088 0.674256 0.5676 0.582909 0.658804 0.663809 yield of H2O on food
Y_OX mol/mol -0.952581 -0.952404 -0.918354 -0.922976 -0.776977 -0.797933 -0.901824 -0.908676 yield of O2 on food
Y_NX mol/mol 0.0656952 0.065683 0.0633348 0.0636535 0.0535846 0.0550299 0.0621948 0.0626673 yield of N-waste on food
mu_TX J/mol 456887 456850 440472 442818 372733 383300 432439 435907 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