Rhynchobatus laevis: Population traits

at T = 28 °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: 2022/12/20
symbol units thin falsethin truethin falsethin truethin falsethin truedescription
f - 0.476914 0.641971 0.820986 0.820986 1 1 scaled functional response
r 1/d 0 0 0.000844101 0.000102735 0.000994621 0.000147945 spec pop growth rate
t2 d NaN NaN 821.166 6746.94 696.896 4685.18 population doubling time
a_b d 452.055 438.023 428.75 428.75 422.598 422.598 age at birth
t_p d 3539.32 1786.91 1373 1373 1187.13 1187.13 time since birth at puberty
S_b - 0.999665 0.999696 0.999715 0.999715 0.999727 0.999727 survival probability at birth
S_p - 0.997732 0.412124 0.9983 0.374748 0.998424 0.351301 survival probability at puberty
theta_0b - 0.0761533 0.316986 0.309306 0.396073 0.346926 0.435983 frac of ind that is embryo
theta_bp - 0.0760787 0.200318 0.215219 0.229577 0.227707 0.240987 fraction of individuals that is juvenile
theta_pi - 0.847768 0.482696 0.475475 0.37435 0.425367 0.32303 frac of ind that is adult
L_bi cm 10.5175 10.3917 10.0762 10.4358 10.2174 10.5395 mean structural length of post-natals
L2_bi cm^2 115.468 124.677 117.081 133.802 123.231 142.826 mean squared structural length of post-natals
L3_bi cm^3 1305.25 1652.67 1528.21 1998.47 1709.25 2350.7 mean cubed structural length of post-natals
Ww_bi g 5390.89 8616.22 9762.86 12767.1 12927.7 17779.3 mean wet weight of post-natals
L_pi cm 10.9641 12.3776 11.9743 13.3238 12.483 14.0683 mean structural length of adults
L2_pi cm^2 123.044 163.159 154.107 195.342 169.6 223.621 mean squared structural length of adults
L3_pi cm^3 1406.6 2261.76 2122.39 3101.83 2501.82 3947.86 mean cubed structural length of adults
Ww_pi g 5809.5 11791.7 13558.8 19815.9 18922.3 29859.2 mean wet weight of adults
R 1/d 0 0.0021659 0.00182555 0.00420737 0.00262398 0.00573519 mean reproduction rate of adults
J_X g/d 16.4229 23.8698 28.6661 32.7601 36.7509 42.5946 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 0.0449994 0.00626716 0.0462588 0.00816474 yield of living structure on food
Y_VX_d mol/mol 0.0206921 0.0352542 0.00332974 0.0339548 0.00233901 0.032561 yield of dead structure on food
Y_EX mol/mol 0 0 0.242477 0.0337703 0.303614 0.0535884 yield of living reserve on food
Y_EX_d mol/mol 0.0647698 0.148544 0.0179422 0.182964 0.0153518 0.213711 yield of dead reserve on food
Y_CX mol/mol 0.744776 0.653815 0.538236 0.586144 0.483831 0.538905 yield of CO2 on food
Y_HX mol/mol 0.639657 0.561535 0.462269 0.503415 0.415543 0.462844 yield of H2O on food
Y_OX mol/mol -0.875615 -0.768674 -0.632791 -0.689115 -0.568829 -0.633578 yield of O2 on food
Y_NX mol/mol 0.0603872 0.053012 0.0436407 0.0475252 0.0392296 0.043695 yield of N-waste on food
mu_TX J/mol 419163 366706 299781 327387 267984 299792 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