Squalus megalops: Population traits

at T = 17 °C with background hazards for embryo, juv, adult: 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 std f_min f_max date: 2022/12/20
symbol units thinning falsethinning true thinning falsethinning true description
femalemale femalemale femalemale femalemale
f - 0.561753 0.561753 0.785428 0.785428 1 1 1 1 scaled functional response
r 1/d 0 0 0 0 0.000357716 0.000357716 3.9152e-05 3.9152e-05 spec pop growth rate
t2 d NaN NaN NaN NaN 1937.7 1937.7 17704 17704 population doubling time
a_b d 808.867 823.488 775.517 787.557 755.48 765.778 755.48 765.778 age at birth
t_p d 5904.34 4.69736e+22 2975.95 3605.32 2288.67 2601.6 2288.67 2601.6 time since birth at puberty
S_b - 0.999852 0.999823 0.99987 0.999845 0.99988 0.999858 0.99988 0.999858 survival probability at birth
S_p - 0.998964 0.998697 0.49382 0.527002 0.999282 0.999123 0.441661 0.467912 survival probability at puberty
theta_0b - 0.056482 0.0611639 0.226106 0.208834 0.24083 0.244447 0.30591 0.28698 frac of ind that is embryo
theta_bp - 0.056477 0.061155 0.156836 0.149667 0.183773 0.185839 0.195276 0.188414 fraction of individuals that is juvenile
theta_pi - 0.887041 0.877681 0.617058 0.6415 0.575397 0.569714 0.498814 0.524606 frac of ind that is adult
L_bi cm 5.72381 5.09922 6.51331 5.99894 6.40434 5.96601 6.88278 6.46323 mean structural length of post-natals
L2_bi cm^2 33.5455 26.483 46.6152 38.7173 45.9461 39.2025 55.27 47.3573 mean squared structural length of post-natals
L3_bi cm^3 199.966 139.463 355.51 263.072 360.613 278.531 493.553 379.194 mean cubed structural length of post-natals
Ww_bi g 462.241 300.264 1007.46 687.169 1202.58 850.217 1645.91 1157.49 mean wet weight of post-natals
L_pi cm 5.87365 5.22554 7.27755 6.59546 7.27302 6.73308 8.16275 7.50728 mean structural length of adults
L2_pi cm^2 34.9539 27.5726 55.3056 44.9623 56.2259 47.6787 71.7247 59.7688 mean squared structural length of adults
L3_pi cm^3 210.219 146.677 434.567 314.688 459.161 353.441 667.52 498.64 mean cubed structural length of adults
Ww_pi g 485.941 315.795 1231.49 821.995 1531.22 1078.88 2226.06 1522.1 mean wet weight of adults
R 1/d 0.000107615 0 0.000944202 0.00052823 0.00103027 0.000699401 0.00163827 0.00114925 mean reproduction rate of adults
J_X g/d 0.784867 0.544701 1.52493 1.11341 1.91366 1.43536 2.302 1.73393 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 0.109375 0.109375 yield of faeces on food
Y_VX mol/mol 0 0 0 0 0.0674086 0.069415 0.00839423 0.00856214 yield of living structure on food
Y_VX_d mol/mol 0.0240399 0.0252353 0.0434938 0.0446313 0.0036956 0.00423438 0.0444178 0.0458052 yield of dead structure on food
Y_EX mol/mol 0 0 0 0 0.157387 0.142474 0.0195991 0.0175738 yield of living reserve on food
Y_EX_d mol/mol 0.0315306 0.0290963 0.0797606 0.0719498 0.00862857 0.00869108 0.103708 0.0940153 yield of dead reserve on food
Y_CX mol/mol 0.772425 0.773571 0.709818 0.715991 0.604492 0.615874 0.660918 0.670318 yield of CO2 on food
Y_HX mol/mol 0.663404 0.664389 0.609633 0.614935 0.519173 0.528949 0.567635 0.575709 yield of H2O on food
Y_OX mol/mol -0.908122 -0.909469 -0.834516 -0.841773 -0.710687 -0.724069 -0.777025 -0.788077 yield of O2 on food
Y_NX mol/mol 0.0626291 0.062722 0.0575528 0.0580533 0.0490129 0.0499358 0.0535879 0.0543501 yield of N-waste on food
mu_TX J/mol 435497 436227 399863 403529 339660 346442 371737 377312 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