Alosa alosa: 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_min f_max date: 2023/09/03
symbol units thinning falsethinning true thinning falsethinning true description
femalemale femalemale femalemale femalemale
f - 0.696348 0.696348 0.696348 0.696348 1 1 1 1 scaled functional response
r 1/d 0 0 0 0 0.00547776 0.00547776 0.00159623 0.00159623 spec pop growth rate
t2 d NaN NaN NaN NaN 126.538 126.538 434.24 434.24 population doubling time
a_b d 13.8503 13.8663 13.8503 13.8663 13.7875 13.8188 13.7875 13.8188 age at birth
t_j d 0.595309 0.598212 0.595309 0.598212 0.589448 0.589611 0.589448 0.589611 time since birth at metam
t_p d 4399.93 NaN 4399.93 NaN 1800.84 1970.7 1800.84 1970.7 time since birth at puberty
S_b - 1 1 1 1 1 1 1 1 survival probability at birth
S_j - 1 1 0.883873 0.884006 1 1 0.883013 0.883612 survival probability at metam
S_p - 1 1 0.242899 0.244359 1 1 0.238923 0.240033 survival probability at puberty
theta_0b - 0.00321534 0.0033782 0.473867 0.467924 0.0728014 0.0728694 0.526637 0.524411 frac of ind that is embryo
theta_bj - 0.000138299 0.000145835 0.0191744 0.0190044 0.0029893 0.00298995 0.0209128 0.0208185 frac of ind between b and j
theta_jp - 0.00307935 0.00323456 0.209858 0.20777 0.0644655 0.0646086 0.22642 0.226353 frac of ind between j and p
theta_pi - 0.993567 0.993241 0.2971 0.305302 0.859744 0.859532 0.22603 0.228417 frac of ind that is adult
L_bi cm 2.02895 1.83985 0.399363 0.400348 0.575767 0.564462 0.177639 0.178659 mean structural length of post-natals
L2_bi cm^2 4.4269 3.62613 0.586099 0.544323 0.536278 0.509019 0.104073 0.103226 mean squared structural length of post-natals
L3_bi cm^3 9.93269 7.3382 1.18911 1.00144 0.65867 0.599665 0.141055 0.133674 mean cubed structural length of post-natals
Ww_bi g 837.224 555.963 100.23 75.8718 79.4419 64.9822 17.0125 14.4854 mean wet weight of post-natals
L_pi cm 2.03529 1.84588 0.657369 0.649752 0.615453 0.603354 0.301151 0.30188 mean structural length of adults
L2_pi cm^2 4.44122 3.63846 1.03456 0.945418 0.577956 0.548653 0.213176 0.2102 mean squared structural length of adults
L3_pi cm^3 9.96485 7.36317 2.10555 1.74507 0.710319 0.646796 0.295068 0.277992 mean cubed structural length of adults
Ww_pi g 839.935 557.855 177.476 132.211 85.6712 70.0895 35.5879 30.1243 mean wet weight of adults
R 1/d 0 0 0 0 0 0 0 0 mean reproduction rate of adults
J_X g/d 5.16391 3.7966 0.683673 0.56991 0.898636 0.765462 0.174391 0.155228 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 0.109375 0.109375 yield of faeces on food
Y_VX mol/mol 0 0 0 0 0.00401502 0.00429129 0.0012911 0.00137459 yield of living structure on food
Y_VX_d mol/mol 0.000614113 0.000636997 0.00141046 0.00148098 3.04811e-06 3.62772e-06 0.00254455 0.00271167 yield of dead structure on food
Y_EX mol/mol 0 0 0 0 0.480234 0.460731 0.154428 0.147582 yield of living reserve on food
Y_EX_d mol/mol 0.0511493 0.0476237 0.117477 0.110722 0.000364582 0.000389488 0.304352 0.291136 yield of dead reserve on food
Y_CX mol/mol 0.838862 0.842364 0.771738 0.778422 0.406009 0.42521 0.428009 0.447821 yield of CO2 on food
Y_HX mol/mol 0.603514 0.606034 0.555223 0.560031 0.292101 0.305915 0.307929 0.322182 yield of H2O on food
Y_OX mol/mol -0.912262 -0.916071 -0.839265 -0.846534 -0.441534 -0.462415 -0.46546 -0.487005 yield of O2 on food
Y_NX mol/mol 0.125829 0.126355 0.115761 0.116763 0.0609013 0.0637814 0.0642014 0.0671732 yield of N-waste on food
mu_TX J/mol 444061 445988 407183 410862 206162 216736 218253 229162 yield of heat on food

Remarks

  • Reprod-code O applies. Sex ratio is assumed to be 1:1. Parameters of male and female differ.
  • Buffer handling rule: release each egg as soon as reproduction buffer allows
  • Weights of adults do not include reproduction buffer