Siganus spinus: Population traits

at T = 28 °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: 2025/03/15
symbol units thin falsethin truethin falsethin truethin falsethin truedescription
f - 0.285383 0.322321 0.66116 0.66116 1 1 scaled functional response
r 1/d 0 0 0.0456706 0.00148295 0.0698406 0.00203756 spec pop growth rate
t2 d NaN NaN 15.1771 467.41 9.92471 340.185 population doubling time
a_b d 3.40967 3.3423 2.99243 2.99243 2.83178 2.83178 age at birth
t_j d 20.818 18.7118 10.7736 10.7736 8.34227 8.34227 time since birth at metam
t_p d 793.587 458.895 152.017 152.017 106.982 106.982 time since birth at puberty
S_b - 1 1 1 1 1 1 survival probability at birth
S_j - 1 0.42859 1 0.265309 1 0.196932 survival probability at metam
S_p - 0.999999 0.00870954 1 0.00842085 1 0.00833863 survival probability at puberty
theta_0b - 0.0013926 0.444125 0.127641 0.566234 0.179336 0.616086 frac of ind that is embryo
theta_bj - 0.00139453 0.299919 0.111434 0.312582 0.147263 0.303206 frac of ind between b and j
theta_jp - 0.00711991 0.220385 0.227582 0.108679 0.215119 0.0707306 frac of ind between j and p
theta_pi - 0.990093 0.0355713 0.533343 0.0125048 0.458282 0.00997717 frac of ind that is adult
L_bi cm 1.62458 0.13184 0.434656 0.0778836 0.377139 0.0731456 mean structural length of post-natals
L2_bi cm^2 2.71263 0.148585 0.381605 0.0713691 0.305373 0.0694213 mean squared structural length of post-natals
L3_bi cm^3 4.56829 0.270289 0.463934 0.225092 0.359187 0.298654 mean cubed structural length of post-natals
Ww_bi g 5.84483 0.355592 0.764275 0.370812 0.710886 0.591083 mean wet weight of post-natals
L_pi cm 1.63782 1.3189 0.659528 0.990931 0.611969 0.909239 mean structural length of adults
L2_pi cm^2 2.73588 2.27893 0.61911 2.37613 0.540648 2.56029 mean squared structural length of adults
L3_pi cm^3 4.60757 4.22082 0.758252 7.80101 0.642503 11.4842 mean cubed structural length of adults
Ww_pi g 5.89508 5.55292 1.24913 12.8512 1.27161 22.729 mean wet weight of adults
R 1/d 0.883168 0 0 19.5988 0 34.561 mean reproduction rate of adults
J_X g/d 0.216087 0.0132623 0.0712446 0.0130417 0.0864145 0.0192333 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 0.2974 0.025595 0.290296 0.0316391 yield of living structure on food
Y_VX_d mol/mol 0.00954699 0.0284486 2.85614e-06 0.0603101 1.02524e-06 0.0698308 yield of dead structure on food
Y_EX mol/mol 0 0 0.19253 0.0165696 0.284245 0.0309796 yield of living reserve on food
Y_EX_d mol/mol 0.00266775 0.00897845 1.849e-06 0.0390435 1.00387e-06 0.0683751 yield of dead reserve on food
Y_CX mol/mol 0.87841 0.853198 0.40069 0.749107 0.316082 0.6898 yield of CO2 on food
Y_HX mol/mol 0.631967 0.613828 0.288274 0.538941 0.227403 0.496273 yield of H2O on food
Y_OX mol/mol -0.955271 -0.927853 -0.43575 -0.814654 -0.343739 -0.750158 yield of O2 on food
Y_NX mol/mol 0.131762 0.12798 0.0601034 0.112366 0.0474123 0.10347 yield of N-waste on food
mu_TX J/mol 466259 453338 217906 398960 171016 367120 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