Trachurus symmetricus: Population traits

at T = 9.2 °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: 2025/05/19
symbol units thin falsethin truethin falsethin truethin falsethin truedescription
f - 0.327116 0.476029 0.738014 0.738014 1 1 scaled functional response
r 1/d 0 0 0.00463587 0.000110178 0.00685168 0.000182534 spec pop growth rate
t2 d NaN NaN 149.518 6291.13 101.165 3797.35 population doubling time
a_b d 7.70814 7.25954 6.75145 6.75145 6.41673 6.41673 age at birth
t_j d 148.908 102.696 67.5343 67.5343 51.0572 51.0572 time since birth at metam
t_p d 8653.82 2951.43 1581.55 1581.55 1111.89 1111.89 time since birth at puberty
S_b - 1 1 1 1 1 1 survival probability at birth
S_j - 1 0.743904 1 0.657695 1 0.5903 survival probability at metam
S_p - 0.999991 0.0152207 0.999998 0.0151257 0.999999 0.0150817 survival probability at puberty
theta_0b - 0.000570638 0.220227 0.0306786 0.287934 0.0428354 0.337821 frac of ind that is embryo
theta_bj - 0.000574359 0.191716 0.0298697 0.236148 0.041171 0.263437 frac of ind between b and j
theta_jp - 0.0105213 0.545499 0.2307 0.442402 0.241378 0.368888 frac of ind between j and p
theta_pi - 0.988334 0.0425577 0.708752 0.0335152 0.674615 0.0298547 frac of ind that is adult
L_bi cm 4.29937 0.185263 0.96142 0.154544 0.877784 0.146323 mean structural length of post-natals
L2_bi cm^2 19.942 0.4979 1.81017 0.386134 1.55747 0.365447 mean squared structural length of post-natals
L3_bi cm^3 95.0182 3.08425 4.77874 3.24884 3.97583 3.76674 mean cubed structural length of post-natals
Ww_bi g 99.3887 3.29069 5.27465 3.58599 4.53488 4.29639 mean wet weight of post-natals
L_pi cm 4.34613 1.8614 1.26703 1.492 1.19111 1.37128 mean structural length of adults
L2_pi cm^2 20.1657 8.97076 2.46842 8.0261 2.20159 7.91971 mean squared structural length of adults
L3_pi cm^3 96.0849 56.4944 6.53439 69.0047 5.63963 83.5253 mean cubed structural length of adults
Ww_pi g 100.505 60.2758 7.21249 76.1656 6.43263 95.27 mean wet weight of adults
R 1/d 0 0 0 0 0 0 mean reproduction rate of adults
J_X g/d 0.228146 0.00823726 0.0469059 0.00989751 0.0547236 0.0126958 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 0.4723 0.0361659 0.497795 0.0541563 yield of living structure on food
Y_VX_d mol/mol 0.0420191 0.100004 6.28021e-05 0.125243 2.79099e-05 0.144672 yield of dead structure on food
Y_EX mol/mol 0 0 0.0490125 0.00375308 0.0699961 0.00761506 yield of living reserve on food
Y_EX_d mol/mol 0.00193273 0.00669381 6.51723e-06 0.0129969 3.92448e-06 0.0203426 yield of dead reserve on food
Y_CX mol/mol 0.846673 0.783928 0.369243 0.712466 0.322802 0.663839 yield of CO2 on food
Y_HX mol/mol 0.609134 0.563992 0.26565 0.51258 0.232238 0.477595 yield of H2O on food
Y_OX mol/mol -0.920757 -0.852521 -0.401552 -0.774807 -0.351048 -0.721925 yield of O2 on food
Y_NX mol/mol 0.127001 0.117589 0.0553865 0.10687 0.0484204 0.0995759 yield of N-waste on food
mu_TX J/mol 450427 418817 209358 382583 185089 357709 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