Ammodytes tobianus: Population traits

at T = 10.2 °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 - 0.351286 0.384159 0.692079 0.692079 1 1 scaled functional response
r 1/d 0 0 0.0107382 0.00179163 0.0171124 0.00255136 spec pop growth rate
t2 d NaN NaN 64.5494 386.882 40.5056 271.677 population doubling time
a_b d 21.0866 20.8079 19.2133 19.2133 18.4317 18.4317 age at birth
t_j d 60.8904 56.5057 37.2615 37.2615 30.4962 30.4962 time since birth at metam
t_p d 3964.5 2142.24 609.057 609.057 426.662 426.662 time since birth at puberty
S_b - 0.999999 0.999999 0.999999 0.999999 0.999999 0.999999 survival probability at birth
S_j - 0.999994 0.338752 0.999996 0.21231 0.999997 0.160423 survival probability at metam
S_p - 0.999979 0.0528877 0.999992 0.0495172 0.999994 0.0484254 survival probability at puberty
theta_0b - 0.00730539 0.445965 0.186375 0.594513 0.270444 0.63956 frac of ind that is embryo
theta_bj - 0.00731046 0.272601 0.151692 0.293336 0.197357 0.281974 frac of ind between b and j
theta_jp - 0.0137993 0.117848 0.116631 0.0586053 0.0992768 0.0360409 frac of ind between j and p
theta_pi - 0.971585 0.163586 0.545303 0.0535457 0.432923 0.042425 frac of ind that is adult
L_bi cm 0.62224 0.210867 0.30316 0.115187 0.25824 0.108121 mean structural length of post-natals
L2_bi cm^2 0.404497 0.108714 0.147318 0.0411411 0.113452 0.0368752 mean squared structural length of post-natals
L3_bi cm^3 0.267159 0.0732736 0.0925335 0.0337215 0.0687237 0.0345679 mean cubed structural length of post-natals
Ww_bi g 0.43356 0.123183 0.206082 0.0751014 0.190576 0.0958593 mean wet weight of post-natals
L_pi cm 0.633897 0.549575 0.410584 0.416631 0.377241 0.39726 mean structural length of adults
L2_pi cm^2 0.413114 0.356065 0.215964 0.277734 0.185863 0.274448 mean squared structural length of adults
L3_pi cm^3 0.272946 0.2472 0.137685 0.252649 0.115284 0.290553 mean cubed structural length of adults
Ww_pi g 0.442953 0.415579 0.30664 0.562677 0.319693 0.805726 mean wet weight of adults
R 1/d 0 0 0 0.311514 0 0.965742 mean reproduction rate of adults
J_X g/d 0.00844574 0.00246141 0.0061955 0.00165929 0.00692344 0.00214935 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 0.160382 0.0364108 0.169861 0.0410335 yield of living structure on food
Y_VX_d mol/mol 0.0131674 0.03605 5.79517e-05 0.0813591 1.86611e-05 0.0886394 yield of dead structure on food
Y_EX mol/mol 0 0 0.196807 0.0446801 0.301177 0.0727555 yield of living reserve on food
Y_EX_d mol/mol 0.00820142 0.0245552 7.11131e-05 0.0998365 3.30877e-05 0.157164 yield of dead reserve on food
Y_CX mol/mol 0.869256 0.83002 0.533307 0.628339 0.419535 0.531032 yield of CO2 on food
Y_HX mol/mol 0.625382 0.597153 0.383685 0.452055 0.301832 0.382048 yield of H2O on food
Y_OX mol/mol -0.945316 -0.902647 -0.579972 -0.683318 -0.456244 -0.577498 yield of O2 on food
Y_NX mol/mol 0.130388 0.124503 0.0799961 0.0942508 0.0629302 0.0796548 yield of N-waste on food
mu_TX J/mol 461406 440970 283997 334131 221894 281208 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