Lithophaga lithophaga: Population traits

at T = 19 °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: 2025/05/20
symbol units thin falsethin truethin falsethin truethin falsethin truedescription
f - 0.450392 0.450392 0.725196 0.725196 1 1 scaled functional response
r 1/d 0 0 0.00174963 0.000488624 0.00210102 0.000567867 spec pop growth rate
t2 d NaN NaN 396.168 1418.57 329.91 1220.61 population doubling time
a_b d 29.0157 29.0157 28.4843 28.4843 28.2386 28.2386 age at birth
t_j d 1.70546 1.70546 1.58118 1.58118 1.52535 1.52535 time since birth at metam
t_p d 17287.9 17287.9 6483.04 6483.04 5388.55 5388.55 time since birth at puberty
S_b - 1 1 1 1 1 1 survival probability at birth
S_j - 1 0.860799 1 0.860695 1 0.860649 survival probability at metam
S_p - 1 0.266369 1 0.251723 1 0.244876 survival probability at puberty
theta_0b - 0.00107455 0.4677 0.0484788 0.510424 0.0574356 0.519714 frac of ind that is embryo
theta_bj - 6.33549e-05 0.0256083 0.00262878 0.0261979 0.00301592 0.0259314 frac of ind between b and j
theta_jp - 0.00101452 0.211321 0.043631 0.222086 0.0512805 0.223005 frac of ind between j and p
theta_pi - 0.997848 0.29537 0.905261 0.241292 0.888268 0.23135 frac of ind that is adult
L_bi cm 0.235546 0.0206357 0.0375526 0.00816704 0.0336389 0.00789456 mean structural length of post-natals
L2_bi cm^2 0.0598572 0.00319094 0.00248798 0.000291965 0.00203434 0.000262902 mean squared structural length of post-natals
L3_bi cm^3 0.0156508 0.000751305 0.000230109 3.14147e-05 0.000175723 2.75502e-05 mean cubed structural length of post-natals
Ww_bi g 0.82447 0.0395781 0.0193776 0.00264546 0.0203386 0.00318874 mean wet weight of post-natals
L_pi cm 0.235798 0.034991 0.0393194 0.0137181 0.0355115 0.0133881 mean structural length of adults
L2_pi cm^2 0.0599218 0.0057443 0.00261465 0.000584184 0.00215812 0.00053709 mean squared structural length of adults
L3_pi cm^3 0.0156677 0.00135394 0.000241866 6.37153e-05 0.000186462 5.71685e-05 mean cubed structural length of adults
Ww_pi g 0.82536 0.0713244 0.0203677 0.00536552 0.0215816 0.00661683 mean wet weight of adults
R 1/d 0 0 0 0 0 0 mean reproduction rate of adults
J_X g/d 0.000941805 5.02068e-05 6.30339e-05 7.39689e-06 7.10728e-05 9.18469e-06 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 0.00638711 0.0020752 0.00519463 0.00170337 yield of living structure on food
Y_VX_d mol/mol 0.00085207 0.00195332 8.50438e-07 0.00408609 4.25858e-07 0.00334848 yield of dead structure on food
Y_EX mol/mol 0 0 0.531477 0.172679 0.596045 0.195449 yield of living reserve on food
Y_EX_d mol/mol 0.0440342 0.100946 7.07657e-05 0.340007 4.88641e-05 0.384214 yield of dead reserve on food
Y_CX mol/mol 0.845739 0.787726 0.352689 0.371778 0.289336 0.305911 yield of CO2 on food
Y_HX mol/mol 0.61363 0.571539 0.255896 0.269745 0.209929 0.221955 yield of H2O on food
Y_OX mol/mol -0.919741 -0.856652 -0.38355 -0.404308 -0.314653 -0.332678 yield of O2 on food
Y_NX mol/mol 0.126861 0.118159 0.0529034 0.0557667 0.0434004 0.0458866 yield of N-waste on food
mu_TX J/mol 447855 416003 176955 187442 142051 151160 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