Thunnus albacares: Population traits

at T = 20 °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: 2022/12/20
symbol units thin falsethin truethin falsethin truethin falsethin truedescription
f - 0.397506 0.411842 0.705921 0.705921 1 1 scaled functional response
r 1/d 0 0 0.00817824 0.0014074 0.0111241 0.00186603 spec pop growth rate
t2 d NaN NaN 84.755 492.502 62.3106 371.456 population doubling time
a_b d 4.71348 4.68888 4.35728 4.35728 4.18572 4.18572 age at birth
t_j d 10.1116 9.87144 7.10627 7.10627 5.97206 5.97206 time since birth at metam
t_p d 8017.58 4820.52 1553.55 1553.55 1142.47 1142.47 time since birth at puberty
S_b - 1 1 1 1 1 1 survival probability at birth
S_j - 1 0.276359 1 0.190005 1 0.149786 survival probability at metam
S_p - 0.999999 0.0667023 1 0.066641 1 0.0666173 survival probability at puberty
theta_0b - 0.00086876 0.528034 0.0348445 0.59627 0.0452905 0.628714 frac of ind that is embryo
theta_bj - 0.000873277 0.298657 0.0337908 0.290733 0.0434365 0.28105 frac of ind between b and j
theta_jp - 0.00100012 0.0865283 0.0207072 0.0440372 0.0179304 0.0273139 frac of ind between j and p
theta_pi - 0.997258 0.0867808 0.910658 0.0689597 0.893343 0.0629224 frac of ind that is adult
L_bi cm 12.8022 0.266085 2.02227 0.164067 1.81585 0.159834 mean structural length of post-natals
L2_bi cm^2 182.91 1.57754 7.61169 0.305938 6.27507 0.275964 mean squared structural length of post-natals
L3_bi cm^3 2726.4 20.5521 40.4462 2.65691 31.2683 2.4076 mean cubed structural length of post-natals
Ww_bi g 4466.72 34.1441 86.2952 5.66873 81.4795 6.27376 mean wet weight of post-natals
L_pi cm 12.8261 1.11364 2.13788 0.595961 1.93437 0.575085 mean structural length of adults
L2_pi cm^2 183.253 8.55306 8.06668 1.76212 6.70552 1.5991 mean squared structural length of adults
L3_pi cm^3 2731.52 111.773 42.8666 15.5526 33.4162 14.204 mean cubed structural length of adults
Ww_pi g 4475.11 185.693 91.4594 33.1828 87.0764 37.0131 mean wet weight of adults
R 1/d 0 0 0 0 0 0 mean reproduction rate of adults
J_X g/d 26.3019 0.234754 1.94438 0.077665 2.27097 0.0991834 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 0.25518 0.0722204 0.229746 0.0679445 yield of living structure on food
Y_VX_d mol/mol 0.0452257 0.0897072 0.00010771 0.148619 4.84713e-05 0.139045 yield of dead structure on food
Y_EX mol/mol 0 0 0.289267 0.0818676 0.36893 0.109106 yield of living reserve on food
Y_EX_d mol/mol 0.0288686 0.0593272 0.000122097 0.168472 7.78361e-05 0.223281 yield of dead reserve on food
Y_CX mol/mol 0.816531 0.741591 0.345948 0.419445 0.291823 0.351249 yield of CO2 on food
Y_HX mol/mol 0.58786 0.534361 0.251916 0.304385 0.213277 0.2557 yield of H2O on food
Y_OX mol/mol -0.887977 -0.80648 -0.376218 -0.456147 -0.317358 -0.381983 yield of O2 on food
Y_NX mol/mol 0.12248 0.111239 0.0518921 0.0629168 0.0437735 0.0526873 yield of N-waste on food
mu_TX J/mol 434009 395016 185692 224393 154649 186192 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