Carcharhinus obscurus: Population traits

at T = 13 °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 stf f_minf f_max date: 2022/12/20
symbol units thin falsethin truethin falsethin truethin falsethin truedescription
f - 0.525843 0.602974 0.801487 0.801487 1 1 scaled functional response
r 1/d 0 0 0.000292328 6.26088e-05 0.000366016 8.53533e-05 spec pop growth rate
t2 d NaN NaN 2371.13 11071.1 1893.76 8120.92 population doubling time
a_b d 1007.08 1007.08 1007.08 1007.08 1007.08 1007.08 age at birth
t_p d 17316.5 9639.55 6097.41 6097.41 4982.88 4982.88 time since birth at puberty
S_b - 0.999924 0.999924 0.999925 0.999925 0.999925 0.999925 survival probability at birth
S_p - 0.999523 0.46178 0.999567 0.409585 0.999584 0.377854 survival probability at puberty
theta_0b - 0.0432221 0.249864 0.257054 0.379447 0.309473 0.431704 frac of ind that is embryo
theta_bp - 0.0432129 0.167942 0.191464 0.226716 0.214022 0.242883 fraction of individuals that is juvenile
theta_pi - 0.913565 0.582194 0.551482 0.393837 0.476505 0.325413 frac of ind that is adult
L_bi cm 16.1801 14.2213 13.1905 13.1266 13.1122 12.9373 mean structural length of post-natals
L2_bi cm^2 274.316 234.697 203.512 218.362 206.305 222.805 mean squared structural length of post-natals
L3_bi cm^3 4786.37 4253.97 3558.61 4335.04 3782.93 4832.73 mean cubed structural length of post-natals
Ww_bi g 19555 19305.1 20294.7 24722.7 25980.5 33190.4 mean wet weight of post-natals
L_pi cm 16.624 16.3745 15.3044 16.6939 15.7459 17.3321 mean structural length of adults
L2_pi cm^2 285.085 289.064 256.375 315.957 274.915 351.278 mean squared structural length of adults
L3_pi cm^3 4997.47 5388.73 4663.7 6629.24 5301.07 8162.53 mean cubed structural length of adults
Ww_pi g 20417.5 24454.9 26597 37806.5 36406.8 56058.9 mean wet weight of adults
R 1/d 0 0 0 0.000441229 0 0.00137761 mean reproduction rate of adults
J_X g/d 18.4069 18.0584 20.8142 22.333 26.326 28.4315 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 yield of faeces on food
Y_VX mol/mol 0 0 0.0499794 0.0121529 0.052595 0.0145082 yield of living structure on food
Y_VX_d mol/mol 0.0163237 0.0302279 0.00158822 0.0318353 0.000941591 0.0317189 yield of dead structure on food
Y_EX mol/mol 0 0 0.235053 0.0571551 0.308618 0.0851317 yield of living reserve on food
Y_EX_d mol/mol 0.0503677 0.106951 0.00746937 0.149721 0.00552509 0.186121 yield of dead reserve on food
Y_CX mol/mol 0.762139 0.696938 0.551795 0.591779 0.483724 0.530159 yield of CO2 on food
Y_HX mol/mol 0.654569 0.598571 0.473914 0.508254 0.415451 0.455332 yield of H2O on food
Y_OX mol/mol -0.896028 -0.819373 -0.648732 -0.69574 -0.568702 -0.623295 yield of O2 on food
Y_NX mol/mol 0.061795 0.0565085 0.0447402 0.0479821 0.0392209 0.0429859 yield of N-waste on food
mu_TX J/mol 429097 391669 307871 330870 268168 294953 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