Gymnocephalus cernuus: Population traits

at T = 16 °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: 2025/05/18
symbol units thinning falsethinning true thinning falsethinning true description
femalemale femalemale femalemale femalemale
f - 0.248274 0.248274 0.286648 0.286648 1 1 1 1 scaled functional response
r 1/d 0 0 0 0 0.0182604 0.0182604 0.00280423 0.00280423 spec pop growth rate
t2 d NaN NaN NaN NaN 37.9591 37.9591 247.179 247.179 population doubling time
a_b d 19.7053 19.7053 19.2676 19.2676 15.685 15.685 15.685 15.685 age at birth
t_j d 634.254 634.254 529.959 529.959 140.655 140.655 140.655 140.655 time since birth at metam
t_p d 5079.82 2394.79 2958.54 1835.81 514.766 397.847 514.766 397.847 time since birth at puberty
S_b - 0.999993 0.999993 0.999993 0.999993 0.999996 0.999996 0.999996 0.999996 survival probability at birth
S_j - 0.999957 0.999957 0.842205 0.842205 0.999978 0.999978 0.582835 0.582835 survival probability at metam
S_p - 0.991724 0.991724 0.00884427 0.00884427 0.999653 0.999653 0.00789703 0.00789703 survival probability at puberty
theta_0b - 0.00531078 0.00531078 0.142866 0.142866 0.248732 0.248732 0.371713 0.371713 frac of ind that is embryo
theta_bj - 0.00533919 0.00533919 0.131904 0.131904 0.187123 0.187123 0.275987 0.275987 frac of ind between b and j
theta_jp - 0.165928 0.165928 0.696204 0.696204 0.506581 0.506581 0.344742 0.344742 frac of ind between j and p
theta_pi - 0.823422 0.823422 0.0290254 0.0290254 0.0575642 0.0575642 0.00755834 0.00755834 frac of ind that is adult
L_bi cm 0.852991 0.852991 0.13055 0.13055 0.165228 0.165228 0.110627 0.110627 mean structural length of post-natals
L2_bi cm^2 0.878582 0.878582 0.0416697 0.0416697 0.0488692 0.0488692 0.0211762 0.0211762 mean squared structural length of post-natals
L3_bi cm^3 0.965027 0.965027 0.0354533 0.0354533 0.0263493 0.0263493 0.0157336 0.0157336 mean cubed structural length of post-natals
Ww_bi g 1.04703 1.04703 0.0389316 0.0389316 0.0353676 0.0353676 0.0211185 0.0211185 mean wet weight of post-natals
L_pi cm 0.993959 0.993959 0.855239 0.855239 0.585045 0.585045 0.743772 0.743772 mean structural length of adults
L2_pi cm^2 1.05368 1.05368 0.869798 0.869798 0.38659 0.38659 0.773609 0.773609 mean squared structural length of adults
L3_pi cm^3 1.16392 1.16392 0.99498 0.99498 0.294428 0.294428 1.17025 1.17025 mean cubed structural length of adults
Ww_pi g 1.26282 1.26282 1.09259 1.09259 0.395199 0.395199 1.57078 1.57078 mean wet weight of adults
R 1/d 0 1.73678 0 1.5261 0 3.35008 6.31058 9.7736 mean reproduction rate of adults
J_X g/d 0.0104097 0.0104097 0.000477168 0.000477168 0.00200889 0.00200889 0.000695054 0.000695054 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 0.23951 0.23951 0.0634779 0.0634779 yield of living structure on food
Y_VX_d mol/mol 0.0461787 0.0461787 0.101939 0.101939 7.78937e-05 7.78937e-05 0.169884 0.169884 yield of dead structure on food
Y_EX mol/mol 0 0 0 0 0.0819742 0.0819742 0.0217258 0.0217258 yield of living reserve on food
Y_EX_d mol/mol 0.00392397 0.00392397 0.0100009 0.0100009 2.66598e-05 2.66598e-05 0.0581443 0.0581443 yield of dead reserve on food
Y_CX mol/mol 0.840522 0.840522 0.778686 0.778686 0.569037 0.569037 0.577393 0.577393 yield of CO2 on food
Y_HX mol/mol 0.604709 0.604709 0.560221 0.560221 0.40939 0.40939 0.415402 0.415402 yield of H2O on food
Y_OX mol/mol -0.914068 -0.914068 -0.846821 -0.846821 -0.618827 -0.618827 -0.627915 -0.627915 yield of O2 on food
Y_NX mol/mol 0.126078 0.126078 0.116803 0.116803 0.0853555 0.0853555 0.0866089 0.0866089 yield of N-waste on food
mu_TX J/mol 447252 447252 416030 416030 307606 307606 311890 311890 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