Rhodeus meridionalis: Population traits

at T = 20 °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: 2025/06/20
symbol units thin falsethin truethin falsethin truethin falsethin truedescription
f - 0.3309 0.383954 0.691977 0.691977 1 1 scaled functional response
r 1/d 0 0 0.00833872 0.00157677 0.0127065 0.00232296 spec pop growth rate
t2 d NaN NaN 83.1239 439.601 54.5507 298.389 population doubling time
a_b d 19.0226 18.5535 16.8574 16.8574 15.9498 15.9498 age at birth
t_j d 12.9604 11.2926 6.88188 6.88188 5.26939 5.26939 time since birth at metam
t_p d 1978.26 1045.81 400.278 400.278 276.281 276.281 time since birth at puberty
S_b - 0.999993 0.999994 0.999995 0.999995 0.999996 0.999996 survival probability at birth
S_j - 0.999974 0.675057 0.999989 0.661188 0.999992 0.656431 survival probability at metam
S_p - 0.999961 0.575057 0.999975 0.460901 0.999979 0.399748 survival probability at puberty
theta_0b - 0.00956333 0.150077 0.131161 0.31424 0.183394 0.383065 frac of ind that is embryo
theta_bj - 0.00652451 0.0756276 0.0485032 0.103232 0.0529045 0.100896 frac of ind between b and j
theta_jp - 0.00305183 0.0366303 0.0655442 0.099481 0.0969529 0.125963 frac of ind between j and p
theta_pi - 0.98086 0.737665 0.754792 0.483048 0.666748 0.390076 frac of ind that is adult
L_bi cm 0.512131 0.39143 0.354032 0.318595 0.343128 0.307959 mean structural length of post-natals
L2_bi cm^2 0.277612 0.201833 0.164526 0.169214 0.15945 0.171205 mean squared structural length of post-natals
L3_bi cm^3 0.154985 0.119203 0.0938762 0.128869 0.0946132 0.152404 mean cubed structural length of post-natals
Ww_bi g 0.191997 0.152234 0.140759 0.193227 0.162896 0.262395 mean wet weight of post-natals
L_pi cm 0.515949 0.432481 0.387813 0.398514 0.389739 0.410014 mean structural length of adults
L2_pi cm^2 0.280179 0.230286 0.186792 0.233273 0.191093 0.260432 mean squared structural length of adults
L3_pi cm^3 0.15648 0.137066 0.107717 0.182042 0.115295 0.239632 mean cubed structural length of adults
Ww_pi g 0.19385 0.175047 0.161511 0.272955 0.198504 0.412577 mean wet weight of adults
R 1/d 0 0 0 0.0381504 0.0358867 0.105988 mean reproduction rate of adults
J_X g/d 0.00264793 0.00223898 0.00331244 0.00340501 0.00465009 0.00499018 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 0.236324 0.0596755 0.258533 0.0709452 yield of living structure on food
Y_VX_d mol/mol 0.0410235 0.0851796 0.00079166 0.122094 0.000308409 0.134783 yield of dead structure on food
Y_EX mol/mol 0 0 0.118021 0.0298023 0.186585 0.0512017 yield of living reserve on food
Y_EX_d mol/mol 0.00979696 0.0236035 0.00039536 0.0609747 0.000222582 0.097274 yield of dead reserve on food
Y_CX mol/mol 0.839804 0.781842 0.535093 0.618078 0.444976 0.536421 yield of CO2 on food
Y_HX mol/mol 0.604193 0.562492 0.384969 0.444673 0.320135 0.385925 yield of H2O on food
Y_OX mol/mol -0.913287 -0.850253 -0.581913 -0.67216 -0.483911 -0.583358 yield of O2 on food
Y_NX mol/mol 0.125971 0.117276 0.0802639 0.0927117 0.0667464 0.0804632 yield of N-waste on food
mu_TX J/mol 446600 416928 288813 331688 240335 287974 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