Sprattus sprattus: Population traits

at T = 15 °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: 2024/01/08
symbol units thin falsethin truethin falsethin truethin falsethin truedescription
f - 0.341978 0.343509 0.671755 0.671755 1 1 scaled functional response
r 1/d 0 0 0.0190862 0.00538145 0.0247781 0.00634069 spec pop growth rate
t2 d NaN NaN 36.3166 128.803 27.9742 109.317 population doubling time
a_b d 9.12022 9.1185 8.92319 8.92319 8.85278 8.85278 age at birth
t_j d 3.24075 3.23778 2.92075 2.92075 2.81519 2.81519 time since birth at metam
t_p d 2368.37 2249.82 381.954 381.954 295.235 295.235 time since birth at puberty
S_b - 1 1 1 1 1 1 survival probability at birth
S_j - 1 0.422331 1 0.414665 1 0.41222 survival probability at metam
S_p - 1 0.185986 1 0.163365 1 0.155852 survival probability at puberty
theta_0b - 0.003859 0.348047 0.15656 0.611976 0.196921 0.630491 frac of ind that is embryo
theta_bj - 0.00137174 0.0828529 0.0457326 0.129194 0.05411 0.128342 frac of ind between b and j
theta_jp - 0.00248865 0.0626823 0.086349 0.101343 0.104068 0.102274 frac of ind between j and p
theta_pi - 0.992281 0.506418 0.711358 0.157487 0.644902 0.138892 frac of ind that is adult
L_bi cm 0.321978 0.221717 0.16681 0.0816313 0.152246 0.0769478 mean structural length of post-natals
L2_bi cm^2 0.105557 0.0669649 0.0407276 0.0157011 0.0357095 0.0145203 mean squared structural length of post-natals
L3_bi cm^3 0.0348519 0.0216513 0.0125066 0.005425 0.0111151 0.00557373 mean cubed structural length of post-natals
Ww_bi g 0.381501 0.237967 0.256858 0.111418 0.334396 0.167685 mean wet weight of post-natals
L_pi cm 0.323084 0.275584 0.190485 0.149608 0.179819 0.145692 mean structural length of adults
L2_pi cm^2 0.105962 0.0858567 0.0479893 0.0367764 0.0440594 0.0364146 mean squared structural length of adults
L3_pi cm^3 0.0349872 0.0278603 0.0148158 0.0132919 0.0138235 0.0147405 mean cubed structural length of adults
Ww_pi g 0.382983 0.306209 0.304285 0.272987 0.415877 0.443465 mean wet weight of adults
R 1/d 0.379433 0 0 0 0 0 mean reproduction rate of adults
J_X g/d 0.0162828 0.0103743 0.0124153 0.00477486 0.0162357 0.00658407 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 0.0192265 0.00611419 0.0169633 0.00536769 yield of living structure on food
Y_VX_d mol/mol 0.000982796 0.00266326 1.23411e-06 0.0115729 5.10954e-07 0.0102087 yield of dead structure on food
Y_EX mol/mol 0 0 0.375646 0.119458 0.493374 0.156118 yield of living reserve on food
Y_EX_d mol/mol 0.00977525 0.0266084 2.41119e-05 0.226109 1.4861e-05 0.296917 yield of dead reserve on food
Y_CX mol/mol 0.879867 0.861353 0.495728 0.527371 0.380272 0.422013 yield of CO2 on food
Y_HX mol/mol 0.633015 0.619696 0.356648 0.379414 0.273585 0.303615 yield of H2O on food
Y_OX mol/mol -0.956855 -0.936722 -0.539104 -0.573516 -0.413546 -0.45894 yield of O2 on food
Y_NX mol/mol 0.13198 0.129203 0.0743591 0.0791056 0.0570408 0.063302 yield of N-waste on food
mu_TX J/mol 466632 456534 256268 273595 192654 215542 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