Trachipterus arcticus: Population traits

at T = 2 °C with background hazards for embryo, juv, adult: 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 std f_minf f_max date: 2025/06/29
symbol units thin falsethin truethin falsethin truethin falsethin truedescription
f - 0.526114 0.52777 0.763885 0.763885 1 1 scaled functional response
r 1/d 0 0 0.00125873 0.000309174 0.00150864 0.000361806 spec pop growth rate
t2 d NaN NaN 550.671 2241.93 459.451 1915.8 population doubling time
a_b d 29.4276 29.4261 29.2821 29.2821 29.204 29.204 age at birth
t_p d 46641.3 26805 8830.93 8830.93 7389.59 7389.59 time since birth at puberty
S_b - 1 1 1 1 1 1 survival probability at birth
S_p - 1 0.264792 1 0.260251 1 0.257849 survival probability at puberty
theta_0b - 0.000802171 0.461948 0.0361063 0.496682 0.0430068 0.501521 frac of ind that is embryo
theta_bp - 0.000804051 0.238064 0.0348811 0.251793 0.0412485 0.252763 fraction of individuals that is juvenile
theta_pi - 0.998394 0.299988 0.929013 0.251525 0.915745 0.245716 frac of ind that is adult
L_bi cm 4.57276 0.54169 0.988221 0.189066 0.879078 0.180144 mean structural length of post-natals
L2_bi cm^2 21.9565 1.84682 1.66825 0.187953 1.362 0.164213 mean squared structural length of post-natals
L3_bi cm^3 107.309 8.46764 3.7888 0.526153 2.9279 0.456012 mean cubed structural length of post-natals
Ww_bi g 2484.82 196.665 125.67 17.4518 126.228 19.6596 mean wet weight of post-natals
L_pi cm 4.57639 0.926381 1.02302 0.321134 0.915899 0.306555 mean structural length of adults
L2_pi cm^2 21.9742 3.30975 1.73074 0.372714 1.42317 0.329631 mean squared structural length of adults
L3_pi cm^3 107.395 15.1872 3.93104 1.05266 3.05977 0.924885 mean cubed structural length of adults
Ww_pi g 2486.82 352.73 130.388 34.9154 131.913 39.8737 mean wet weight of adults
R 1/d 0 0 0 0 0 0 mean reproduction rate of adults
J_X g/d 2.74811 0.231879 0.303165 0.0341562 0.324017 0.039066 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 0.0157309 0.00476261 0.0136324 0.00422331 yield of living structure on food
Y_VX_d mol/mol 0.00130575 0.00329898 1.29223e-06 0.00941818 6.62078e-07 0.00833726 yield of dead structure on food
Y_EX mol/mol 0 0 0.506045 0.153207 0.57409 0.177852 yield of living reserve on food
Y_EX_d mol/mol 0.0289298 0.0733214 4.15696e-05 0.302971 2.78815e-05 0.351099 yield of dead reserve on food
Y_CX mol/mol 0.860389 0.814005 0.368807 0.420266 0.302874 0.349113 yield of CO2 on food
Y_HX mol/mol 0.619002 0.585631 0.265336 0.302358 0.217901 0.251167 yield of H2O on food
Y_OX mol/mol -0.935674 -0.88523 -0.401077 -0.457039 -0.329375 -0.37966 yield of O2 on food
Y_NX mol/mol 0.129058 0.122101 0.055321 0.0630399 0.0454311 0.0523669 yield of N-waste on food
mu_TX J/mol 455936 430524 186286 214511 149919 175296 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