Rhinobatos rhinobatos: Population traits

at T = 15 °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_minf f_max date: 2025/05/17
symbol units thin falsethin truethin falsethin truethin falsethin truedescription
f - 0.573501 NaN 0.78675 NaN 1 1 scaled functional response
r 1/d 0 0 0.000600225 NaN 0.000899058 NaN spec pop growth rate
t2 d NaN NaN 1154.81 NaN 770.97 NaN population doubling time
a_b d 292.277 NaN 282.092 NaN 275.654 NaN age at birth
t_p d 2545.53 NaN 1604.64 NaN 1291.87 NaN time since birth at puberty
S_b - 0.999156 NaN 0.999239 NaN 0.999288 NaN survival probability at birth
S_p - 0.994892 NaN 0.9957 NaN 0.996146 NaN survival probability at puberty
theta_0b - 0.0822926 NaN 0.181932 NaN 0.234322 NaN frac of ind that is embryo
theta_bp - 0.0821252 NaN 0.153325 NaN 0.182596 NaN fraction of individuals that is juvenile
theta_pi - 0.835582 NaN 0.664743 NaN 0.583082 NaN frac of ind that is adult
L_bi cm 5.92866 NaN 5.9821 NaN 6.1056 NaN mean structural length of post-natals
L2_bi cm^2 37.4766 NaN 40.5382 NaN 43.8009 NaN mean squared structural length of post-natals
L3_bi cm^3 247.647 NaN 301.317 NaN 355.867 NaN mean cubed structural length of post-natals
Ww_bi g 615.732 NaN 915.701 NaN 1278.16 NaN mean wet weight of post-natals
L_pi cm 6.22361 NaN 6.65859 NaN 7.03638 NaN mean structural length of adults
L2_pi cm^2 40.3092 NaN 47.7134 NaN 54.3892 NaN mean squared structural length of adults
L3_pi cm^3 269.448 NaN 363.998 NaN 457.168 NaN mean cubed structural length of adults
Ww_pi g 669.936 NaN 1106.19 NaN 1642 NaN mean wet weight of adults
R 1/d 0.000148158 NaN 0.00156543 NaN 0.00260711 NaN mean reproduction rate of adults
J_X g/d 2.1886 NaN 3.24768 NaN 4.4602 NaN mean ingestion rate of wet food by post-natals
Y_PX mol/mol 0.109375 NaN 0.109375 NaN 0.109375 NaN yield of faeces on food
Y_VX mol/mol 0 NaN 0.0556883 NaN 0.0717333 NaN yield of living structure on food
Y_VX_d mol/mol 0.0552916 NaN 0.0253684 NaN 0.0164644 NaN yield of dead structure on food
Y_EX mol/mol 0 NaN 0.113549 NaN 0.185909 NaN yield of living reserve on food
Y_EX_d mol/mol 0.0821814 NaN 0.0517263 NaN 0.0426704 NaN yield of dead reserve on food
Y_CX mol/mol 0.696666 NaN 0.595971 NaN 0.530809 NaN yield of CO2 on food
Y_HX mol/mol 0.598337 NaN 0.511855 NaN 0.45589 NaN yield of H2O on food
Y_OX mol/mol -0.819053 NaN -0.700669 NaN -0.624059 NaN yield of O2 on food
Y_NX mol/mol 0.0564864 NaN 0.048322 NaN 0.0430386 NaN yield of N-waste on food
mu_TX J/mol 392763 NaN 335175 NaN 297432 NaN 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