Penaeus semisulcatus: 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: 2025/05/20
symbol units thin falsethin truethin falsethin truethin falsethin truedescription
f - 0.487867 0.999992 0.999996 0.999996 1 1 scaled functional response
r 1/d 0 0 0.0234832 NaN 0.0268545 3.85818e-05 spec pop growth rate
t2 d NaN NaN 29.5168 NaN 25.8112 17965.7 population doubling time
a_b d 7.05388 6.24868 6.24868 NaN 6.24867 6.24867 age at birth
t_j d 101.224 49.6389 49.6387 NaN 49.6385 49.6385 time since birth at metam
t_p d 1414.13 290.284 290.283 NaN 290.281 290.281 time since birth at puberty
S_b - 0.999987 0.99999 0.99999 NaN 0.99999 0.99999 survival probability at birth
S_j - 0.999922 0.498888 0.999948 NaN 0.999948 0.498886 survival probability at metam
S_p - 0.997141 0.00398906 0.999347 NaN 0.999347 0.00398908 survival probability at puberty
theta_0b - 0.00788838 0.407329 0.136429 NaN 0.154402 0.407464 frac of ind that is embryo
theta_bj - 0.00790615 0.293943 0.117958 NaN 0.130712 0.293973 frac of ind between b and j
theta_jp - 0.105411 0.29029 0.476796 NaN 0.492191 0.290182 frac of ind between j and p
theta_pi - 0.878794 0.0084381 0.268817 NaN 0.222695 0.00838183 frac of ind that is adult
L_bi cm 1.49105 0.108142 0.383795 NaN 0.329043 0.10788 mean structural length of post-natals
L2_bi cm^2 2.67565 0.0595832 0.344499 NaN 0.256709 0.0586667 mean squared structural length of post-natals
L3_bi cm^3 5.09528 0.164178 0.467171 NaN 0.313544 0.160648 mean cubed structural length of post-natals
Ww_bi g 5.68516 0.203137 0.578029 NaN 0.387947 0.19877 mean wet weight of post-natals
L_pi cm 1.66116 1.44786 0.909201 NaN 0.850319 1.43897 mean structural length of adults
L2_pi cm^2 3.01585 3.54317 1.04468 NaN 0.900028 3.50151 mean squared structural length of adults
L3_pi cm^3 5.75107 11.4465 1.48612 NaN 1.17317 11.2713 mean cubed structural length of adults
Ww_pi g 6.41687 14.1627 1.83877 NaN 1.45156 13.9459 mean wet weight of adults
R 1/d 0 7.67162 0 NaN 0 7.36822 mean reproduction rate of adults
J_X g/d 0.10974 0.00459099 0.0288701 NaN 0.0213243 0.0045126 mean ingestion rate of wet food by post-natals
Y_PX mol/mol 0.109375 0.109375 0.109375 NaN 0.109375 0.109375 yield of faeces on food
Y_VX mol/mol 0 0 0.380001 NaN 0.394857 0.00137351 yield of living structure on food
Y_VX_d mol/mol 0.0953122 0.193807 0.00157852 NaN 0.00120218 0.19417 yield of dead structure on food
Y_EX mol/mol 0 0 0.0901729 NaN 0.0936985 0.00032593 yield of living reserve on food
Y_EX_d mol/mol 0.0110342 0.0459895 0.000374577 NaN 0.000285274 0.0460761 yield of dead reserve on food
Y_CX mol/mol 0.784279 0.650829 0.418498 NaN 0.400582 0.648679 yield of CO2 on food
Y_HX mol/mol 0.565552 0.46932 0.301783 NaN 0.288864 0.46777 yield of H2O on food
Y_OX mol/mol -0.852903 -0.707776 -0.455116 NaN -0.435633 -0.705439 yield of O2 on food
Y_NX mol/mol 0.117642 0.0976243 0.0627746 NaN 0.0600873 0.0973019 yield of N-waste on food
mu_TX J/mol 418775 350302 231909 NaN 222779 349207 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