Alosa sapidissima: Population traits

at T = 15 °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: 2023/03/18
symbol units thin falsethin truethin falsethin truethin falsethin truedescription
f - 0.659408 0.661301 0.83065 0.83065 1 1 scaled functional response
r 1/d 0 0 0.00710308 0.0016941 0.0092082 0.00219729 spec pop growth rate
t2 d NaN NaN 97.584 409.153 75.275 315.456 population doubling time
a_b d 10.002 10.0008 9.90884 9.90884 9.8464 9.8464 age at birth
t_j d 7.5539 7.54971 7.25319 7.25319 7.05822 7.05822 time since birth at metam
t_p d 2714.71 2912.78 1475.96 1475.96 1160.85 1160.85 time since birth at puberty
S_b - 1 1 1 1 1 1 survival probability at birth
S_j - 1 0.14755 1 0.147124 1 0.146848 survival probability at metam
S_p - 1 0.101368 1 0.0967289 1 0.0936812 survival probability at puberty
theta_0b - 0.00185148 0.633415 0.0679274 0.673161 0.0866339 0.681145 frac of ind that is embryo
theta_bj - 0.00139919 0.213148 0.0468054 0.21665 0.0574755 0.213776 frac of ind between b and j
theta_jp - 0.00045346 0.0189942 0.016543 0.0210464 0.0216947 0.0219813 frac of ind between j and p
theta_pi - 0.996296 0.134444 0.868724 0.0891427 0.834196 0.0830975 frac of ind that is adult
L_bi cm 3.87418 0.60491 1.18374 0.211911 1.01983 0.196017 mean structural length of post-natals
L2_bi cm^2 15.5737 1.84481 2.23846 0.241682 1.73963 0.194679 mean squared structural length of post-natals
L3_bi cm^3 63.437 7.16201 5.38546 0.688029 3.92451 0.538667 mean cubed structural length of post-natals
Ww_bi g 597.289 67.6066 62.4761 7.98175 54.0097 7.41321 mean wet weight of post-natals
L_pi cm 3.8812 1.50835 1.26298 0.557825 1.10732 0.517915 mean structural length of adults
L2_pi cm^2 15.6026 5.01808 2.40096 0.86707 1.90376 0.726507 mean squared structural length of adults
L3_pi cm^3 63.555 19.5274 5.77809 2.52088 4.29686 2.06501 mean cubed structural length of adults
Ww_pi g 598.4 184.332 67.031 29.2444 59.1341 28.419 mean wet weight of adults
R 1/d 0 0 0 0 0 0 mean reproduction rate of adults
J_X g/d 6.2888 0.746683 1.13972 0.122457 1.06696 0.118675 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 0.0335638 0.00951842 0.0338697 0.00997349 yield of living structure on food
Y_VX_d mol/mol 0.00217315 0.00576026 4.4634e-06 0.0191417 2.15895e-06 0.0199687 yield of dead structure on food
Y_EX mol/mol 0 0 0.355806 0.100904 0.43225 0.127283 yield of living reserve on food
Y_EX_d mol/mol 0.0182881 0.0486144 4.7316e-05 0.202919 2.75529e-05 0.254844 yield of dead reserve on food
Y_CX mol/mol 0.870164 0.83625 0.501203 0.558142 0.424476 0.478556 yield of CO2 on food
Y_HX mol/mol 0.626035 0.601636 0.360588 0.401552 0.305387 0.344294 yield of H2O on food
Y_OX mol/mol -0.946303 -0.909422 -0.545058 -0.606979 -0.461618 -0.52043 yield of O2 on food
Y_NX mol/mol 0.130525 0.125438 0.0751805 0.0837213 0.0636714 0.0717834 yield of N-waste on food
mu_TX J/mol 461355 442882 259996 291067 217812 247359 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