Ammodytes americanus: Population traits

at T = 7.9 °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: 2024/09/20
symbol units thin falsethin truethin falsethin truethin falsethin truedescription
f - 0.195539 0.208091 0.604045 0.604045 1 1 scaled functional response
r 1/d 0 0 0.0129774 0.00225032 0.0180798 0.0028264 spec pop growth rate
t2 d NaN NaN 53.4118 308.022 38.3382 245.241 population doubling time
a_b d 39.7929 39.3967 33.7821 33.7821 31.9617 31.9617 age at birth
t_j d 196.345 183.332 75.9842 75.9842 58.0988 58.0988 time since birth at metam
t_p d 4087.81 2824.64 478.805 478.805 339.985 339.985 time since birth at puberty
S_b - 0.999996 0.999996 0.999997 0.999997 0.999998 0.999998 survival probability at birth
S_j - 0.999974 0.496182 0.999987 0.215535 0.99999 0.147221 survival probability at metam
S_p - 0.999778 0.0383382 0.99997 0.0316895 0.999982 0.0307301 survival probability at puberty
theta_0b - 0.0113238 0.357435 0.354861 0.615682 0.438833 0.668653 frac of ind that is embryo
theta_bj - 0.0113346 0.257199 0.228992 0.29455 0.246302 0.275744 frac of ind between b and j
theta_jp - 0.0445878 0.233724 0.175501 0.0636949 0.118578 0.0345448 frac of ind between j and p
theta_pi - 0.932754 0.151642 0.240647 0.0260733 0.196287 0.021058 frac of ind that is adult
L_bi cm 0.362914 0.133166 0.16043 0.0829615 0.157171 0.0825834 mean structural length of post-natals
L2_bi cm^2 0.139635 0.0362384 0.0437932 0.015743 0.0434327 0.0165114 mean squared structural length of post-natals
L3_bi cm^3 0.0548871 0.0136107 0.017194 0.00830169 0.0180257 0.0107834 mean cubed structural length of post-natals
Ww_bi g 0.0825931 0.0209222 0.0440051 0.0212468 0.0645586 0.0386207 mean wet weight of post-natals
L_pi cm 0.379733 0.359222 0.296709 0.343634 0.301386 0.351353 mean structural length of adults
L2_pi cm^2 0.147561 0.139505 0.1056 0.170909 0.111012 0.193427 mean squared structural length of adults
L3_pi cm^3 0.0581344 0.0566181 0.0449396 0.117665 0.0502368 0.164529 mean cubed structural length of adults
Ww_pi g 0.0874794 0.0870323 0.115015 0.301143 0.179922 0.589257 mean wet weight of adults
R 1/d 0.0487481 0.0541621 0.668611 2.05771 0.972216 2.86383 mean reproduction rate of adults
J_X g/d 0.00135998 0.000363252 0.0013684 0.000445148 0.00226452 0.000783606 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 0.163062 0.0419668 0.143916 0.0388949 yield of living structure on food
Y_VX_d mol/mol 0.0145692 0.0409908 2.87354e-05 0.0971098 1.1434e-05 0.0877453 yield of dead structure on food
Y_EX mol/mol 0 0 0.254267 0.0654401 0.371515 0.100406 yield of living reserve on food
Y_EX_d mol/mol 0.00735425 0.0220195 4.4808e-05 0.151426 2.95167e-05 0.226513 yield of dead reserve on food
Y_CX mol/mol 0.868702 0.827615 0.473222 0.534682 0.375153 0.437066 yield of CO2 on food
Y_HX mol/mol 0.624982 0.595423 0.340457 0.384674 0.269902 0.314445 yield of H2O on food
Y_OX mol/mol -0.944713 -0.900031 -0.514629 -0.581467 -0.407979 -0.475309 yield of O2 on food
Y_NX mol/mol 0.130305 0.124142 0.0709833 0.0802023 0.0562729 0.0655599 yield of N-waste on food
mu_TX J/mol 461171 439894 251083 283685 196187 229375 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