Pyganodon grandis: Population traits

at T = 17 °C with background hazards for embryo, larva, juv, adult: 0, 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 abj f_minf f_max date: 2025/05/23
symbol units thin falsethin truethin falsethin truethin falsethin truedescription
f - 0.116743 0.128461 0.564231 0.564231 1 1 scaled functional response
r 1/d 0 0 0.0230811 0.00189641 0.0355672 0.00271251 spec pop growth rate
t2 d NaN NaN 30.031 365.506 19.4884 255.537 population doubling time
a_b d 2.25891 2.22378 1.74613 1.74613 1.59783 1.59783 age at birth
t_j d 14.8705 13.5723 3.69623 3.69623 2.44179 2.44179 time since birth at metam
t_p d 3502.87 2581.47 380.805 380.805 240.825 240.825 time since birth at puberty
S_b - 1 1 1 1 1 1 survival probability at birth
S_j - 1 0.71963 1 0.3866 1 0.26802 survival probability at metam
S_p - 0.999998 0.134246 1 0.133756 1 0.1337 survival probability at puberty
theta_0b - 0.000461761 0.199952 0.0389843 0.428959 0.054547 0.510308 frac of ind that is embryo
theta_bj - 0.00046647 0.17209 0.037962 0.279909 0.0522326 0.286532 frac of ind between b and j
theta_jp - 0.00260431 0.359305 0.0406265 0.114982 0.0264138 0.0523881 frac of ind between j and p
theta_pi - 0.996467 0.268654 0.882427 0.17615 0.866807 0.150773 frac of ind that is adult
L_bi cm 0.508693 0.0323624 0.0921132 0.0206127 0.0915546 0.0205848 mean structural length of post-natals
L2_bi cm^2 0.289911 0.00973817 0.0158579 0.00406381 0.0158358 0.004307 mean squared structural length of post-natals
L3_bi cm^3 0.172762 0.00543085 0.00398961 0.0033385 0.0040474 0.00414888 mean cubed structural length of post-natals
Ww_bi g 0.184672 0.00584281 0.00531886 0.00445082 0.0064374 0.0065988 mean wet weight of post-natals
L_pi cm 0.510235 0.0814892 0.0995733 0.0499499 0.0991039 0.0499375 mean structural length of adults
L2_pi cm^2 0.290805 0.0288843 0.0172638 0.0130426 0.017266 0.0138569 mean squared structural length of adults
L3_pi cm^3 0.173294 0.0161721 0.00434486 0.0108216 0.00441457 0.013474 mean cubed structural length of adults
Ww_pi g 0.185241 0.0173988 0.00579248 0.0144272 0.00702138 0.0214304 mean wet weight of adults
R 1/d 0 0 0 0 0 0 mean reproduction rate of adults
J_X g/d 0.000736507 2.71948e-05 0.000194962 4.98171e-05 0.000345101 9.36045e-05 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 0.472318 0.127088 0.417138 0.120228 yield of living structure on food
Y_VX_d mol/mol 0.0770041 0.156153 3.42705e-05 0.258081 1.23161e-05 0.244097 yield of dead structure on food
Y_EX mol/mol 0 0 0.157367 0.042343 0.246321 0.0709948 yield of living reserve on food
Y_EX_d mol/mol 0.00530843 0.0118453 1.14183e-05 0.0859872 7.27272e-06 0.14414 yield of dead reserve on food
Y_CX mol/mol 0.808312 0.722627 0.260894 0.377126 0.227147 0.311165 yield of CO2 on food
Y_HX mol/mol 0.586476 0.524306 0.189293 0.273626 0.164808 0.225768 yield of H2O on food
Y_OX mol/mol -0.87904 -0.785857 -0.283722 -0.410125 -0.247022 -0.338392 yield of O2 on food
Y_NX mol/mol 0.121247 0.108394 0.0391341 0.056569 0.034072 0.0466748 yield of N-waste on food
mu_TX J/mol 431078 387909 149766 209334 128445 172014 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