Histriophoca fasciata: Population traits

at T = 37 °C with background hazards for embryo, baby, 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 stx f_min f_max date: 2025/02/12
symbol units thinning falsethinning true thinning falsethinning true description
femalemale femalemale femalemale femalemale
f - 0.872441 0.872441 0.882125 0.882125 1 1 1 1 scaled functional response
r 1/d 0 0 0 0 0.000832705 0.000832705 0.000370934 0.000370934 spec pop growth rate
t2 d NaN NaN NaN NaN 832.405 832.405 1868.66 1868.66 population doubling time
a_b d 225.825 NaN 225.825 NaN 225.825 NaN 225.825 NaN age at birth
t_x d 3013.89 NaN 2264.62 NaN 1024.61 NaN 1024.61 NaN time since birth at weaning
t_p d 28.5884 NaN 28.2495 NaN 24.9685 NaN 24.9685 NaN time since birth at puberty
S_b - 1 NaN 1 NaN 1 NaN 1 NaN survival probability at birth
S_x - 0.999999 NaN 0.641062 NaN 0.999999 NaN 0.592082 NaN survival probability at weaning
S_p - 0.999547 NaN 0.29827 NaN 0.999985 NaN 0.294548 NaN survival probability at puberty
theta_0b - 0.0149656 NaN 0.0476147 NaN 0.171497 NaN 0.217252 NaN frac of ind that is embryo
theta_bx - 0.0149634 NaN 0.0376395 NaN 0.14208 NaN 0.152175 NaN fraction of individuals that is baby
theta_xp - 0.184719 NaN 0.158851 NaN 0.333622 NaN 0.233819 NaN fraction of individuals that is juvenile
theta_pi - 0.785352 NaN 0.755895 NaN 0.352801 NaN 0.396755 NaN frac of ind that is adult
L_bi cm 24.0683 NaN 23.9332 NaN 22.6284 NaN 23.1051 NaN mean structural length of post-natals
L2_bi cm^2 581.801 NaN 578.21 NaN 531.758 NaN 558.196 NaN mean squared structural length of post-natals
L3_bi cm^3 14107.4 NaN 14060.4 NaN 12883.9 NaN 13955.6 NaN mean cubed structural length of post-natals
Ww_bi g 52856.9 NaN 53109.4 NaN 53447 NaN 57892.4 NaN mean wet weight of post-natals
L_pi cm 24.5554 NaN 24.8142 NaN 26.8327 NaN 27.3224 NaN mean structural length of adults
L2_pi cm^2 602.967 NaN 615.749 NaN 721.119 NaN 747.519 NaN mean squared structural length of adults
L3_pi cm^3 14806.1 NaN 15279.5 NaN 19409.3 NaN 20477.9 NaN mean cubed structural length of adults
Ww_pi g 55474.6 NaN 57714.2 NaN 80516.5 NaN 84949.4 NaN mean wet weight of adults
R 1/d 8.40655e-05 NaN 0.000278524 NaN 0.00195621 NaN 0.00232391 NaN mean reproduction rate of adults
J_X g/d 371.474 NaN 373.279 NaN 389.162 NaN 408.511 NaN mean ingestion rate of wet food by post-natals
Y_PX mol/mol 0.109375 NaN 0.109375 NaN 0.109375 NaN 0.109375 NaN yield of faeces on food
Y_VX mol/mol 0 NaN 0 NaN 0.0275682 NaN 0.0126719 NaN yield of living structure on food
Y_VX_d mol/mol 0.00268306 NaN 0.00505859 NaN 1.80741e-05 NaN 0.0122638 NaN yield of dead structure on food
Y_EX mol/mol 0 NaN 0 NaN 0.0867941 NaN 0.0398953 NaN yield of living reserve on food
Y_EX_d mol/mol 0.00736967 NaN 0.0140489 NaN 5.69034e-05 NaN 0.0386105 NaN yield of dead reserve on food
Y_CX mol/mol 0.814529 NaN 0.806154 NaN 0.717974 NaN 0.728145 NaN yield of CO2 on food
Y_HX mol/mol 0.694674 NaN 0.687531 NaN 0.612326 NaN 0.621 NaN yield of H2O on food
Y_OX mol/mol -0.957622 NaN -0.947775 NaN -0.844104 NaN -0.856062 NaN yield of O2 on food
Y_NX mol/mol 0.0660429 NaN 0.0653638 NaN 0.0582141 NaN 0.0590388 NaN yield of N-waste on food
mu_TX J/mol 459048 NaN 454269 NaN 403837 NaN 409651 NaN 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