Sphyraena barracuda: Population traits

at T = 27 °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_min f_max date: 2025/05/20
symbol units thinning falsethinning true thinning falsethinning true description
femalemale femalemale femalemale femalemale
f - 0.394529 0.394529 0.394529 0.394529 1 1 1 1 scaled functional response
r 1/d 0 0 0 0 0.0123138 0.0123138 0.00149826 0.00149826 spec pop growth rate
t2 d NaN NaN NaN NaN 56.2902 56.2902 462.633 462.633 population doubling time
a_b d 2.97934 3.04713 2.97934 3.04713 2.76829 2.80437 2.76829 2.80437 age at birth
t_j d 1.46283 1.61181 1.46283 1.61181 1.07161 1.13008 1.07161 1.13008 time since birth at metam
t_p d 3151.73 NaN 3151.73 NaN 831.682 1023.55 831.682 1023.55 time since birth at puberty
S_b - 1 1 1 1 1 1 1 1 survival probability at birth
S_j - 1 1 0.387864 0.387987 1 1 0.387558 0.387601 survival probability at metam
S_p - 1 1 0.220268 0.236528 1 1 0.172253 0.179918 survival probability at puberty
theta_0b - 0.000398518 0.000440183 0.508296 0.487093 0.033335 0.0337836 0.581787 0.572011 frac of ind that is embryo
theta_bj - 0.000196656 0.00023385 0.162117 0.167273 0.012672 0.0133524 0.14593 0.149257 frac of ind between b and j
theta_jp - 0.000203874 0.000208246 0.0759987 0.0698023 0.0197246 0.0194441 0.0922007 0.0901824 frac of ind between j and p
theta_pi - 0.999201 0.999118 0.253589 0.275831 0.934268 0.93342 0.180083 0.18855 frac of ind that is adult
L_bi cm 8.02486 6.55174 0.470342 0.469672 1.20227 1.13248 0.183564 0.183069 mean structural length of post-natals
L2_bi cm^2 67.8154 45.1235 2.61887 2.18755 2.67482 2.35187 0.343528 0.325437 mean squared structural length of post-natals
L3_bi cm^3 583.87 316.423 20.9866 14.3202 8.50791 6.93479 2.41213 2.06148 mean cubed structural length of post-natals
Ww_bi g 1452 698.98 52.1907 31.6333 40.5717 28.1859 11.5027 8.37875 mean wet weight of post-natals
L_pi cm 8.02806 6.55462 0.866881 0.832662 1.24201 1.17033 0.359526 0.351991 mean structural length of adults
L2_pi cm^2 67.8426 45.1435 5.07571 4.06577 2.76746 2.43439 0.794257 0.735387 mean squared structural length of adults
L3_pi cm^3 584.104 316.563 40.6925 26.6282 8.80292 7.17844 5.60159 4.67918 mean cubed structural length of adults
Ww_pi g 1452.59 699.29 101.196 58.8218 41.9785 29.1763 26.7123 19.0182 mean wet weight of adults
R 1/d 0 0 0 0 0 0 0 0 mean reproduction rate of adults
J_X g/d 7.86169 4.25307 0.303589 0.206177 0.786171 0.562052 0.10094 0.0777502 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 0.13326 0.151932 0.0358037 0.0397253 yield of living structure on food
Y_VX_d mol/mol 0.0123412 0.0132435 0.0306592 0.0332444 3.04167e-06 4.26482e-06 0.071624 0.0795242 yield of dead structure on food
Y_EX mol/mol 0 0 0 0 0.502215 0.465584 0.134933 0.121735 yield of living reserve on food
Y_EX_d mol/mol 0.0183496 0.0160114 0.045586 0.0401926 1.14631e-05 1.30692e-05 0.269929 0.243696 yield of dead reserve on food
Y_CX mol/mol 0.859934 0.86137 0.81438 0.817188 0.255136 0.273091 0.378335 0.405944 yield of CO2 on food
Y_HX mol/mol 0.618675 0.619708 0.585901 0.587921 0.183556 0.196474 0.272191 0.292054 yield of H2O on food
Y_OX mol/mol -0.935179 -0.93674 -0.885638 -0.888692 -0.27746 -0.296987 -0.411439 -0.441465 yield of O2 on food
Y_NX mol/mol 0.12899 0.129206 0.122157 0.122578 0.0382703 0.0409637 0.0567502 0.0608917 yield of N-waste on food
mu_TX J/mol 456237 457072 432098 433772 129644 140453 196112 211888 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