Sciaena umbra: Population traits

at T = 20 °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 - 0.297102 0.314107 0.657053 0.657053 1 1 scaled functional response
r 1/d 0 0 0.00555898 0.000694924 0.00941416 0.00113924 spec pop growth rate
t2 d NaN NaN 124.69 997.442 73.6282 608.432 population doubling time
a_b d 5.9051 5.85374 5.19439 5.19439 4.84238 4.84238 age at birth
t_j d 95.2662 90.1165 44.0804 44.0804 29.9543 29.9543 time since birth at metam
t_p d 8740.38 6465.18 1637.32 1637.32 1007.02 1007.02 time since birth at puberty
S_b - 1 1 1 1 1 1 survival probability at birth
S_j - 1 0.806103 1 0.675243 1 0.583099 survival probability at metam
S_p - 0.999988 0.0362169 0.999997 0.0357082 0.999999 0.0355562 survival probability at puberty
theta_0b - 0.000603268 0.162785 0.0282713 0.270062 0.0442827 0.338077 frac of ind that is embryo
theta_bj - 0.000608596 0.147702 0.0276594 0.224151 0.0425908 0.261691 frac of ind between b and j
theta_jp - 0.00920977 0.586467 0.183536 0.437202 0.192254 0.339817 frac of ind between j and p
theta_pi - 0.989578 0.103046 0.760533 0.0685842 0.720872 0.0604147 frac of ind that is adult
L_bi cm 4.20499 0.269386 0.951789 0.17248 0.853758 0.16707 mean structural length of post-natals
L2_bi cm^2 19.3378 0.613413 1.68833 0.195427 1.40181 0.177931 mean squared structural length of post-natals
L3_bi cm^3 91.9409 2.70613 4.19996 0.918171 3.32739 0.909806 mean cubed structural length of post-natals
Ww_bi g 96.1795 2.83803 4.62816 1.01178 3.84369 1.05098 mean wet weight of post-natals
L_pi cm 4.24534 1.44502 1.17859 0.83034 1.088 0.79237 mean structural length of adults
L2_pi cm^2 19.5294 4.89961 2.15158 1.96626 1.85197 1.83208 mean squared structural length of adults
L3_pi cm^3 92.8531 21.976 5.36535 9.7579 4.41032 9.95351 mean cubed structural length of adults
Ww_pi g 97.1337 23.047 5.91237 10.7528 5.09466 11.498 mean wet weight of adults
R 1/d 0 0 0 0 0 0 mean reproduction rate of adults
J_X g/d 0.267821 0.00891783 0.051945 0.00586726 0.0657166 0.00812027 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 0.449465 0.108749 0.476661 0.127641 yield of living structure on food
Y_VX_d mol/mol 0.0509963 0.115226 0.000107458 0.230517 3.60159e-05 0.264416 yield of dead structure on food
Y_EX mol/mol 0 0 0.0458246 0.0110874 0.0739625 0.0198059 yield of living reserve on food
Y_EX_d mol/mol 0.00235097 0.00561602 1.09557e-05 0.0235021 5.58851e-06 0.0410289 yield of dead reserve on food
Y_CX mol/mol 0.837278 0.769783 0.395217 0.516769 0.33996 0.437733 yield of CO2 on food
Y_HX mol/mol 0.602375 0.553816 0.284336 0.371787 0.244582 0.314925 yield of H2O on food
Y_OX mol/mol -0.91054 -0.83714 -0.429798 -0.561986 -0.369706 -0.476035 yield of O2 on food
Y_NX mol/mol 0.125592 0.115468 0.0592825 0.0775153 0.050994 0.0656599 yield of N-waste on food
mu_TX J/mol 445709 411798 222504 283843 193469 243012 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