Acipenser stellatus: Population traits

at T = 18 °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: 2025/02/11
symbol units thin falsethin truethin falsethin truethin falsethin truedescription
f - 0.977709 0.981258 0.990629 0.990629 1 1 scaled functional response
r 1/d 0 0 0.00145214 0.000195896 0.00169418 0.000293579 spec pop growth rate
t2 d NaN NaN 477.327 3538.33 409.135 2361.02 population doubling time
a_b d 8.62175 8.62158 8.62114 8.62114 8.6207 8.6207 age at birth
t_p d 15942.9 8503.67 6784.05 6784.05 6077.07 6077.07 time since birth at puberty
S_b - 1 1 1 1 1 1 survival probability at birth
S_p - 1 0.255919 1 0.255864 1 0.255809 survival probability at puberty
theta_0b - 0.000884691 0.479131 0.0124316 0.487964 0.0144841 0.490503 frac of ind that is embryo
theta_bp - 0.00088594 0.242557 0.0122941 0.246633 0.0142941 0.247706 fraction of individuals that is juvenile
theta_pi - 0.998229 0.278312 0.975274 0.265404 0.971222 0.261791 frac of ind that is adult
L_bi cm 7.77521 0.65083 3.06837 0.430237 2.77552 0.381676 mean structural length of post-natals
L2_bi cm^2 64.5512 3.43678 13.965 1.54309 11.7127 1.15678 mean squared structural length of post-natals
L3_bi cm^3 549.066 26.7943 76.3196 10.4918 60.3339 7.31752 mean cubed structural length of post-natals
Ww_bi g 49092.6 2404.31 6912.99 950.342 5516.15 669.018 mean wet weight of post-natals
L_pi cm 7.78203 1.14882 3.10597 0.756233 2.81511 0.667661 mean structural length of adults
L2_pi cm^2 64.6085 6.42631 14.1409 2.97096 11.8849 2.24512 mean squared structural length of adults
L3_pi cm^3 549.553 50.1458 77.2816 20.241 61.2219 14.2408 mean cubed structural length of adults
Ww_pi g 49136.2 4499.68 7000.13 1833.42 5597.33 1301.99 mean wet weight of adults
R 1/d 0 0 0 0 0 0 mean reproduction rate of adults
J_X g/d 150.68 8.05151 33.0289 3.64961 27.964 2.76181 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 0.00335546 0.000563158 0.00365529 0.00077785 yield of living structure on food
Y_VX_d mol/mol 0.000493772 0.00117339 1.03461e-05 0.0015895 7.16306e-06 0.00183959 yield of dead structure on food
Y_EX mol/mol 0 0 0.30058 0.0504474 0.330536 0.0703386 yield of living reserve on food
Y_EX_d mol/mol 0.043655 0.104118 0.0009268 0.142387 0.000647733 0.166348 yield of dead reserve on food
Y_CX mol/mol 0.846476 0.785334 0.585752 0.695638 0.555778 0.651321 yield of CO2 on food
Y_HX mol/mol 0.608993 0.565004 0.421416 0.500473 0.399852 0.468589 yield of H2O on food
Y_OX mol/mol -0.920543 -0.854051 -0.637006 -0.756506 -0.604409 -0.708312 yield of O2 on food
Y_NX mol/mol 0.126971 0.1178 0.0878628 0.104346 0.0833668 0.0976981 yield of N-waste on food
mu_TX J/mol 448243 414649 304988 365365 288517 341014 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