Sardina pilchardus: 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: 2025/02/07
symbol units thin falsethin truethin falsethin truethin falsethin truedescription
f - 0.240141 0.240141 0.62007 0.62007 1 1 scaled functional response
r 1/d 0 0 0.033178 0.00672266 0.0400056 0.00719918 spec pop growth rate
t2 d NaN NaN 20.8918 103.106 17.3262 96.2814 population doubling time
a_b d 8.50409 8.50409 8.20438 8.20438 8.12672 8.12672 age at birth
t_j d 9.72894 9.72894 8.05398 8.05398 7.67991 7.67991 time since birth at metam
t_p d 1818.12 1818.12 242.033 242.033 196.783 196.783 time since birth at puberty
S_b - 1 1 1 1 1 1 survival probability at birth
S_j - 1 0.104495 1 0.0718338 1 0.0710673 survival probability at metam
S_p - 1 0.0754767 1 0.0695364 1 0.064309 survival probability at puberty
theta_0b - 0.00300956 0.515753 0.238248 0.714289 0.277499 0.724787 frac of ind that is embryo
theta_bj - 0.00301077 0.20457 0.178625 0.236587 0.19112 0.229892 frac of ind between b and j
theta_jp - 0.000433645 0.0066289 0.00290263 0.000852588 0.00941384 0.00247201 frac of ind between j and p
theta_pi - 0.993546 0.273048 0.580225 0.0482719 0.521967 0.0428497 frac of ind that is adult
L_bi cm 0.366914 0.194253 0.155293 0.049588 0.145068 0.0482838 mean structural length of post-natals
L2_bi cm^2 0.136356 0.065451 0.0400525 0.008457 0.0366798 0.00840468 mean squared structural length of post-natals
L3_bi cm^3 0.0509026 0.02397 0.0137759 0.00382279 0.0129729 0.0045306 mean cubed structural length of post-natals
Ww_bi g 0.369676 0.17408 0.236536 0.0656383 0.351282 0.12268 mean wet weight of post-natals
L_pi cm 0.368071 0.32293 0.193399 0.154497 0.187676 0.155441 mean structural length of adults
L2_pi cm^2 0.136825 0.115442 0.0522087 0.0458985 0.0502906 0.0492931 mean squared structural length of adults
L3_pi cm^3 0.0510789 0.0424907 0.0180716 0.0224939 0.0179382 0.0289468 mean cubed structural length of adults
Ww_pi g 0.370956 0.308584 0.310293 0.386225 0.485732 0.783822 mean wet weight of adults
R 1/d 4.32229 0 0 0 0 0 mean reproduction rate of adults
J_X g/d 0.0211378 0.0101257 0.0162692 0.00333465 0.0241035 0.00535936 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 0.0280933 0.00770675 0.0215317 0.00608591 yield of living structure on food
Y_VX_d mol/mol 0.000898471 0.00265493 1.96853e-07 0.0158964 8.85601e-08 0.0124972 yield of dead structure on food
Y_EX mol/mol 0 0 0.454276 0.12462 0.561506 0.158709 yield of living reserve on food
Y_EX_d mol/mol 0.00562659 0.0166262 3.18316e-06 0.257048 2.30948e-06 0.325902 yield of dead reserve on food
Y_CX mol/mol 0.8841 0.871344 0.408252 0.485354 0.307585 0.387431 yield of CO2 on food
Y_HX mol/mol 0.636061 0.626883 0.293715 0.349185 0.22129 0.278735 yield of H2O on food
Y_OX mol/mol -0.961459 -0.947586 -0.443974 -0.527822 -0.334498 -0.421331 yield of O2 on food
Y_NX mol/mol 0.132615 0.130702 0.0612378 0.072803 0.0461377 0.0581146 yield of N-waste on food
mu_TX J/mol 468956 462028 208600 250781 152904 196672 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