Pollachius pollachius: Population traits

at T = 8.9 °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 - 0.289884 0.326037 0.663019 0.663019 1 1 scaled functional response
r 1/d 0 0 0.00616534 0.00066914 0.0104988 0.00111129 spec pop growth rate
t2 d NaN NaN 112.426 1035.88 66.0219 623.73 population doubling time
a_b d 12.0434 11.8193 10.5161 10.5161 9.81316 9.81316 age at birth
t_j d 276.202 245.041 122.658 122.658 84.2777 84.2777 time since birth at metam
t_p d 8442.55 5113.77 1575.71 1575.71 994.898 994.898 time since birth at puberty
S_b - 1 1 1 1 1 1 survival probability at birth
S_j - 0.999997 0.778848 0.999998 0.640505 0.999998 0.545765 survival probability at metam
S_p - 0.999765 0.00561705 0.999954 0.00553718 0.999978 0.00551239 survival probability at puberty
theta_0b - 0.00161306 0.196678 0.0625326 0.309387 0.0975611 0.379678 frac of ind that is embryo
theta_bj - 0.00162313 0.175048 0.0588596 0.249074 0.0883492 0.282998 frac of ind between b and j
theta_jp - 0.0355977 0.612023 0.438583 0.43173 0.441588 0.328921 frac of ind between j and p
theta_pi - 0.961166 0.0162514 0.440025 0.00980926 0.372502 0.00840222 frac of ind that is adult
L_bi cm 5.06672 0.170195 0.836562 0.146711 0.708241 0.144774 mean structural length of post-natals
L2_bi cm^2 29.5561 0.217961 1.60477 0.0947388 1.19611 0.0860952 mean squared structural length of post-natals
L3_bi cm^3 181.243 1.17702 4.58323 0.505854 3.12935 0.481344 mean cubed structural length of post-natals
Ww_bi g 191.502 1.25196 5.17661 0.571345 3.74041 0.575335 mean wet weight of post-natals
L_pi cm 5.25391 2.25457 1.54458 1.54901 1.42181 1.48047 mean structural length of adults
L2_pi cm^2 30.6981 9.86376 3.35579 5.38206 2.82078 5.00668 mean squared structural length of adults
L3_pi cm^3 188.261 58.0149 9.74445 35.3809 7.55706 35.2925 mean cubed structural length of adults
Ww_pi g 198.917 61.7084 11.006 39.9616 9.03271 42.184 mean wet weight of adults
R 1/d 0 0 0 0 0 0 mean reproduction rate of adults
J_X g/d 0.516693 0.00406372 0.0641327 0.00334607 0.0719827 0.00452858 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 0.440605 0.10116 0.456419 0.11812 yield of living structure on food
Y_VX_d mol/mol 0.0794312 0.163623 0.000258624 0.243667 8.52251e-05 0.268769 yield of dead structure on food
Y_EX mol/mol 0 0 0.0570435 0.0130968 0.089124 0.023065 yield of living reserve on food
Y_EX_d mol/mol 0.00449621 0.010417 3.3483e-05 0.0315466 1.66417e-05 0.0524819 yield of dead reserve on food
Y_CX mol/mol 0.806698 0.716585 0.392684 0.501155 0.34498 0.42819 yield of CO2 on food
Y_HX mol/mol 0.580374 0.515543 0.282514 0.360553 0.248194 0.308059 yield of H2O on food
Y_OX mol/mol -0.877284 -0.779286 -0.427044 -0.545006 -0.375166 -0.465656 yield of O2 on food
Y_NX mol/mol 0.121005 0.107488 0.0589026 0.0751733 0.051747 0.0642284 yield of N-waste on food
mu_TX J/mol 430311 384959 220676 275533 195220 237505 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