Thunnus obesus: 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 - 0.332741 0.336325 0.668162 0.668162 1 1 scaled functional response
r 1/d 0 0 0.0119294 0.00194833 0.0139725 0.00212546 spec pop growth rate
t2 d NaN NaN 58.1042 355.765 49.6081 326.117 population doubling time
a_b d 2.36778 2.36634 2.29606 2.29606 2.27059 2.27059 age at birth
t_j d 0.664179 0.662513 0.585761 0.585761 0.559987 0.559987 time since birth at metam
t_p d 3963.7 3263.58 966.874 966.874 815.235 815.235 time since birth at puberty
S_b - 1 1 1 1 1 1 survival probability at birth
S_j - 1 0.503324 1 0.502948 1 0.502826 survival probability at metam
S_p - 1 0.199694 1 0.180708 1 0.174068 survival probability at puberty
theta_0b - 0.000486932 0.536885 0.0268657 0.575175 0.0310534 0.584372 frac of ind that is embryo
theta_bj - 0.000137413 0.109404 0.00677639 0.106461 0.00755188 0.104527 frac of ind between b and j
theta_jp - 0.000352461 0.123267 0.0195168 0.129293 0.0227063 0.130332 frac of ind between j and p
theta_pi - 0.999023 0.230444 0.946841 0.189071 0.938688 0.180769 frac of ind that is adult
L_bi cm 7.52612 0.464387 1.40274 0.183516 1.29801 0.179064 mean structural length of post-natals
L2_bi cm^2 59.7258 2.4416 3.55926 0.313652 3.12897 0.302116 mean squared structural length of post-natals
L3_bi cm^3 483.141 18.5346 12.6024 1.86438 10.7986 1.97005 mean cubed structural length of post-natals
Ww_bi g 2367.37 91.5976 111.296 16.465 137.366 25.0604 mean wet weight of post-natals
L_pi cm 7.52978 0.883991 1.44015 0.350196 1.33804 0.346435 mean structural length of adults
L2_pi cm^2 59.7551 4.90429 3.65801 0.701496 3.22972 0.691181 mean squared structural length of adults
L3_pi cm^3 483.378 37.2482 12.9523 4.18892 11.1467 4.52938 mean cubed structural length of adults
Ww_pi g 2368.53 184.08 114.386 36.9938 141.794 57.617 mean wet weight of adults
R 1/d 0 0 0 0 0 0 mean reproduction rate of adults
J_X g/d 28.0961 1.16093 3.36303 0.296318 4.42512 0.427203 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 0.0670548 0.0183879 0.0511453 0.0147023 yield of living structure on food
Y_VX_d mol/mol 0.00663872 0.0164056 3.89959e-06 0.0368319 1.95681e-06 0.0294056 yield of dead structure on food
Y_EX mol/mol 0 0 0.52513 0.144002 0.59946 0.172322 yield of living reserve on food
Y_EX_d mol/mol 0.0258908 0.0646702 3.05391e-05 0.288443 2.29353e-05 0.344654 yield of dead reserve on food
Y_CX mol/mol 0.858096 0.809549 0.298406 0.40296 0.239995 0.329541 yield of CO2 on food
Y_HX mol/mol 0.617533 0.582876 0.217977 0.292617 0.176277 0.240203 yield of H2O on food
Y_OX mol/mol -0.933179 -0.880385 -0.324516 -0.438219 -0.260994 -0.358376 yield of O2 on food
Y_NX mol/mol 0.128714 0.121432 0.0447609 0.0604441 0.0359992 0.0494311 yield of N-waste on food
mu_TX J/mol 454941 428729 150132 207045 117211 166109 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