Scaphirhynchus albus: 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 std f_min f_max date: 2025/02/12
symbol units thinning falsethinning true thinning falsethinning true description
femalemale femalemale femalemale femalemale
f - 0.480697 0.480697 0.482338 0.482338 1 1 1 1 scaled functional response
r 1/d 0 0 0 0 0.00176476 0.00176476 0.000486544 0.000486544 spec pop growth rate
t2 d NaN NaN NaN NaN 392.772 392.772 1424.64 1424.64 population doubling time
a_b d 39.7092 40.6716 39.6896 40.6508 36.1473 36.8302 36.1473 36.8302 age at birth
t_p d 53899.7 NaN 30240.4 NaN 5427.5 5405.85 5427.5 5405.85 time since birth at puberty
S_b - 1 1 1 1 1 1 1 1 survival probability at birth
S_p - 1 1 0.485896 0.511858 1 1 0.388082 0.406792 survival probability at puberty
theta_0b - 0.000926857 0.00100346 0.263619 0.241917 0.0616795 0.0628118 0.396927 0.382625 frac of ind that is embryo
theta_bp - 0.000928549 0.00100523 0.183998 0.173292 0.057988 0.0589771 0.243701 0.240403 fraction of individuals that is juvenile
theta_pi - 0.998145 0.997991 0.552383 0.584791 0.880333 0.878211 0.359372 0.376972 frac of ind that is adult
L_bi cm 8.47548 7.20938 1.99581 1.90927 1.80938 1.67074 0.647095 0.636313 mean structural length of post-natals
L2_bi cm^2 75.4375 54.5685 13.3548 10.9921 5.50363 4.63262 1.28715 1.18896 mean squared structural length of post-natals
L3_bi cm^3 683.777 420.633 113.557 79.5059 23.1988 17.6959 6.45519 5.40035 mean cubed structural length of post-natals
Ww_bi g 1472.01 833.039 244.909 157.723 78.8322 53.789 21.9355 16.415 mean wet weight of post-natals
L_pi cm 8.48315 7.21641 2.58679 2.41019 1.91263 1.76693 0.927572 0.894822 mean structural length of adults
L2_pi cm^2 75.5077 54.6234 17.7867 14.235 5.86224 4.93985 2.12234 1.91259 mean squared structural length of adults
L3_pi cm^3 684.413 421.057 151.379 103.063 24.7259 18.8834 10.8235 8.83601 mean cubed structural length of adults
Ww_pi g 1473.38 833.878 326.48 204.455 84.0216 57.3984 36.7796 26.8582 mean wet weight of adults
R 1/d 0 0 0 0 0 0 0 0 mean reproduction rate of adults
J_X g/d 2.06157 1.26833 0.366208 0.25636 0.312888 0.223999 0.0731761 0.0574891 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 0.109375 0.109375 yield of faeces on food
Y_VX mol/mol 0 0 0 0 0.130846 0.139416 0.0429202 0.0457044 yield of living structure on food
Y_VX_d mol/mol 0.0095254 0.0100677 0.0238885 0.0251958 5.7497e-06 7.20295e-06 0.0827202 0.0877468 yield of dead structure on food
Y_EX mol/mol 0 0 0 0 0.313784 0.284356 0.102928 0.0932199 yield of living reserve on food
Y_EX_d mol/mol 0.0109806 0.00987078 0.0276318 0.0247874 1.37885e-05 1.46913e-05 0.198373 0.178971 yield of dead reserve on food
Y_CX mol/mol 0.870119 0.870687 0.839105 0.840642 0.445975 0.466832 0.463684 0.484983 yield of CO2 on food
Y_HX mol/mol 0.626002 0.626411 0.603689 0.604795 0.320855 0.335859 0.333595 0.348919 yield of H2O on food
Y_OX mol/mol -0.946254 -0.946872 -0.912526 -0.914198 -0.484998 -0.507679 -0.504257 -0.527419 yield of O2 on food
Y_NX mol/mol 0.130518 0.130603 0.125866 0.126096 0.0668963 0.0700247 0.0695526 0.0727475 yield of N-waste on food
mu_TX J/mol 461698 462037 445358 446269 234485 246385 243965 256070 yield of heat on food

Remarks

  • Reprod-code O applies. Sex ratio is assumed to be 1:1. Parameters of male and female differ.
  • Buffer handling rule: release each egg as soon as reproduction buffer allows
  • Weights of adults do not include reproduction buffer