Euphausia pacifica: Population traits

at T = 8 °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_minf f_max date: 2024/11/22
symbol units thin falsethin truethin falsethin truethin falsethin truedescription
f - 0.216553 0.299207 0.649604 0.649604 1 1 scaled functional response
r 1/d 0 0 0.0202723 0.00322718 0.0245216 0.00374947 spec pop growth rate
t2 d NaN NaN 34.1918 214.784 28.2668 184.865 population doubling time
a_b d 12.341 11.8508 10.9874 10.9874 10.6722 10.6722 age at birth
t_p d 695.334 386.479 190.609 190.609 154.873 154.873 time since birth at puberty
S_b - 0.999947 0.999953 0.999961 0.999961 0.999964 0.999964 survival probability at birth
S_p - 0.999713 0.441351 0.999819 0.346924 0.999838 0.314902 survival probability at puberty
theta_0b - 0.0252395 0.284008 0.200234 0.430604 0.230609 0.467253 frac of ind that is embryo
theta_bp - 0.0252518 0.187822 0.160302 0.244717 0.177557 0.252228 fraction of individuals that is juvenile
theta_pi - 0.949509 0.52817 0.639464 0.324679 0.591834 0.280519 frac of ind that is adult
L_bi cm 0.0575815 0.0437788 0.0472532 0.0390977 0.0479392 0.0390935 mean structural length of post-natals
L2_bi cm^2 0.0035739 0.00273555 0.0030717 0.00278357 0.00328106 0.00306065 mean squared structural length of post-natals
L3_bi cm^3 0.000230994 0.00020773 0.000252988 0.000306504 0.000295625 0.000413414 mean cubed structural length of post-natals
Ww_bi g 0.000356515 0.000363692 0.000665367 0.000806117 0.00103743 0.00145079 mean wet weight of post-natals
L_pi cm 0.0587008 0.0537682 0.0547601 0.0560099 0.0569712 0.0589084 mean structural length of adults
L2_pi cm^2 0.0036625 0.0036196 0.00376493 0.00466749 0.00416744 0.00554369 mean squared structural length of adults
L3_pi cm^3 0.000237036 0.000280169 0.000315019 0.000533786 0.000382477 0.000780288 mean cubed structural length of adults
Ww_pi g 0.000365839 0.000490518 0.000828512 0.00140388 0.00134222 0.00273825 mean wet weight of adults
R 1/d 0.172647 0.218329 0.238485 0.374689 0.242536 0.43724 mean reproduction rate of adults
J_X g/d 7.46008e-05 7.88957e-05 0.000192337 0.000174296 0.000316264 0.000295019 mean ingestion rate of wet food by post-natals
Y_PX mol/mol 0.695045 0.695045 0.695045 0.695045 0.695045 0.695045 yield of faeces on food
Y_VX mol/mol 0 0 0.0169991 0.0036179 0.0146125 0.00334958 yield of living structure on food
Y_VX_d mol/mol 0.00632607 0.0116359 0.000260102 0.0106241 0.000138391 0.00905214 yield of dead structure on food
Y_EX mol/mol 0 0 0.0475205 0.0101138 0.0628829 0.0144144 yield of living reserve on food
Y_EX_d mol/mol 0.00589531 0.0149823 0.000727109 0.0296995 0.000595547 0.0389546 yield of dead reserve on food
Y_CX mol/mol 0.292733 0.278336 0.239448 0.250899 0.226725 0.239184 yield of CO2 on food
Y_HX mol/mol 0.219016 0.21438 0.187254 0.192962 0.171099 0.178872 yield of H2O on food
Y_OX mol/mol -0.322309 -0.309525 -0.267692 -0.278871 -0.250366 -0.263309 yield of O2 on food
Y_NX mol/mol 0.0386282 0.0326384 0.0261933 0.0296109 0.0289388 0.031615 yield of N-waste on food
mu_TX J/mol 184973 177320 156212 162360 149090 155824 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